Honda NSX NA2 1997-2005 (C32B) → AMP EFI MS3Pro EVO+ HC (auto)
Honda NSX NA2 1997-2005 (C32B) — AMP EFI — MS3Pro EVO+ HC
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12
Before you start
Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
| Status | draft · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | 5: read the Findings page before cutting any wire |
| Size of the job | 90 wires · 12 connectors · 0 part lines |
| Tools | Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink |
| Order of work | 1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up. |
Build checklist
Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.
| Wire | From | To | Gauge | Colour | Cut | Label | Crimp A | Crimp B | Pin A | Pin B | Continuity |
|---|---|---|---|---|---|---|---|---|---|---|---|
| W1 | OEM-A-13 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-G-10 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-G-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-G-3 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-G-9 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-14V-1 | MS3PROEVOHC-A-35 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-A-12 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | OEM-A-25 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | OEM-G-7 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-G-8 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | MS3PROEVOHC-B-3 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | SP-GND-1 | MS3PROEVOHC-B-5 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | SP-GND-1 | MS3PROEVOHC-B-7 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-GND-1 | MS3PROEVOHC-B-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-A-26 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-B-13 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-B-14 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-B-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-B-16 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-B-9 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-D-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-F-15 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-F-2 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | SP-0V-1 | MS3PROEVOHC-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | SP-0V-1 | MS3PROEVOHC-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-0V-1 | MS3PROEVOHC-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | SP-0V-1 | MS3PROEVOHC-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | SP-0V-1 | MS3PROEVOHC-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | SP-0V-1 | MS3PROEVOHC-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | SP-0V-1 | MS3PROEVOHC-C-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-D-10 | MS3PROEVOHC-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-F-1 | MS3PROEVOHC-C-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-F-14 | MS3PROEVOHC-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-B-8 | MS3PROEVOHC-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | SP-0V-1 | MS3PROEVOHC-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-7 | MS3PROEVOHC-B-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | SP-0V-1 | MS3PROEVOHC-B-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B-6 | MS3PROEVOHC-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | SP-0V-1 | MS3PROEVOHC-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-B-5 | MS3PROEVOHC-B-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-D-13 | MS3PROEVOHC-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-D-2 | MS3PROEVOHC-A-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-11 | MS3PROEVOHC-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-24 | MS3PROEVOHC-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-B-12 | MS3PROEVOHC-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-B-11 | MS3PROEVOHC-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-B-10 | MS3PROEVOHC-B-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-B-2 | MS3PROEVOHC-B-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-1 | MS3PROEVOHC-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-2 | MS3PROEVOHC-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-3 | MS3PROEVOHC-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-14 | MS3PROEVOHC-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-A-15 | MS3PROEVOHC-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-A-16 | MS3PROEVOHC-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-A-5 | MS3PROEVOHC-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-F-19 | MS3PROEVOHC-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-F-20 | MS3PROEVOHC-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-D-9 | MS3PROEVOHC-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-F-13 | MS3PROEVOHC-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-F-12 | MS3PROEVOHC-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-D-12 | MS3PROEVOHC-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-D-7 | MS3PROEVOHC-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-F-4 | MS3PROEVOHC-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-A-8 | MS3PROEVOHC-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-A-10 | MS3PROEVOHC-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-A-22 | MS3PROEVOHC-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-A-23 | MS3PROEVOHC-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-A-9 | MS3PROEVOHC-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-A-17 | MS3PROEVOHC-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-A-20 | MS3PROEVOHC-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-A-21 | MS3PROEVOHC-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W73 | OEM-A-4 | MS3PROEVOHC-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W74 | OEM-A-6 | MS3PROEVOHC-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W75 | OEM-A-7 | MS3PROEVOHC-B-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W76 | OEM-C-8 | MS3PROEVOHC-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W77 | OEM-D-16 | MS3PROEVOHC-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W78 | OEM-D-17 | MS3PROEVOHC-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W79 | OEM-D-18 | MS3PROEVOHC-A-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W80 | OEM-D-19 | MS3PROEVOHC-A-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W81 | OEM-D-8 | MS3PROEVOHC-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W82 | OEM-D-20 | MS3PROEVOHC-A-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W83 | OEM-C-7 | MS3PROEVOHC-B-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W84 | OEM-F-16 | MS3PROEVOHC-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W85 | OEM-F-6 | MS3PROEVOHC-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W86 | OEM-B-1 | MS3PROEVOHC-B-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W87 | OEM-B-3 | MS3PROEVOHC-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W88 | OEM-B-4 | MS3PROEVOHC-C-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W89 | OEM-C-4 | MS3PROEVOHC-B-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W90 | OEM-C-6 | MS3PROEVOHC-B-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ |
Bench test (before first power-up)
Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).
| # | Probe A | Probe B | Expect | Why | Reading |
|---|---|---|---|---|---|
| 1 | MS3PROEVOHC-A-35 | MS3PROEVOHC-A-13 | open (OL) | +12 V supply must not touch sensor ground | |
| 2 | MS3PROEVOHC-A-13 | MS3PROEVOHC-A-8 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | MS3PROEVOHC-A-13 | MS3PROEVOHC-C-15 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | MS3PROEVOHC-A-13 | MS3PROEVOHC-C-22 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 5 | MS3PROEVOHC-A-35 | MS3PROEVOHC-A-8 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 6 | MS3PROEVOHC-A-35 | MS3PROEVOHC-C-15 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | MS3PROEVOHC-A-35 | MS3PROEVOHC-C-22 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | MS3PROEVOHC-B-3 | MS3PROEVOHC-A-35 | open (OL) | power ground must not touch +12 V supply | |
| 9 | MS3PROEVOHC-B-3 | MS3PROEVOHC-A-8 | open (OL) | power ground must not touch 5 V sensor reference | |
| 10 | MS3PROEVOHC-B-3 | MS3PROEVOHC-C-15 | open (OL) | power ground must not touch 5 V sensor reference | |
| 11 | MS3PROEVOHC-B-3 | MS3PROEVOHC-C-22 | open (OL) | power ground must not touch 5 V sensor reference |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MS3PROEVOHC-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | High current out 1 | — | W69 | — | 0.5 | OEM-A-9 | — | — | — |
| 10 | MAT in | — | W81 | — | 0.5 | OEM-D-8 | — | — | — |
| 11 | CLT in | — | W63 | — | 0.5 | OEM-D-7 | — | — | — |
| 12 | Analog In 6 | — | W80 | — | 0.5 | OEM-D-19 | — | — | — |
| 13 | Logic Ground | — | W25 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | PWM / Idle Out 1 | — | W57 | — | 0.5 | OEM-F-19 | — | — | — |
| 15 | CKP− | — | W36 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Ground Shield Drain | — | — | — | — | — | — | — | — |
| 17 | Analog In 7 | — | W82 | — | 0.5 | OEM-D-20 | — | — | — |
| 18 | Sensor return | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Analog in 1 | — | W59 | — | 0.5 | OEM-D-9 | — | — | — |
| 2 | High current out 2 | — | W70 | — | 0.5 | OEM-A-17 | — | — | — |
| 20 | Analog in 2 | — | W61 | — | 0.5 | OEM-F-12 | — | — | — |
| 21 | Analog in 3 | — | W62 | — | 0.5 | OEM-D-12 | — | — | — |
| 22 | Analog In 4 | — | W78 | — | 0.5 | OEM-D-17 | — | — | — |
| 23 | Analog In 5 | — | W79 | — | 0.5 | OEM-D-18 | — | — | — |
| 24 | Tach out | — | W76 | — | 0.5 | OEM-C-8 | — | — | — |
| 25 | O2 in | — | W77 | — | 0.5 | OEM-D-16 | — | — | — |
| 26 | CMP+ | — | W39 | — | 0.5 | OEM-B-6 | — | — | — |
| 27 | CMP− | — | W40 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Fuel pump relay out | — | W56 | — | 0.5 | OEM-A-5 | — | — | — |
| 29 | PWM out 2 | — | W64 | — | 0.5 | OEM-F-4 | — | — | — |
| 3 | Injector out J | — | W50 | — | 0.5 | OEM-A-1 | — | — | — |
| 30 | PWM out 3 | — | W66 | — | 0.5 | OEM-A-10 | — | — | — |
| 31 | Knock in 1 | — | W42 | — | 0.5 | OEM-D-13 | — | — | — |
| 32 | Digital switched in 1 | — | W84 | — | 0.5 | OEM-F-16 | — | — | — |
| 33 | CAN L | — | — | — | — | — | — | — | — |
| 34 | CAN H | — | — | — | — | — | — | — | — |
| 35 | 12V+ switched power in | — | W7 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Injector out I | — | W51 | — | 0.5 | OEM-A-2 | — | — | — |
| 5 | High current out 3 | — | W71 | — | 0.5 | OEM-A-20 | — | — | — |
| 6 | CKP+ | — | W35 | — | 0.5 | OEM-B-8 | — | — | — |
| 7 | Knock In 2 | — | W43 | — | 0.5 | OEM-D-2 | — | — | — |
| 8 | 5V+ VREF out | — | W34 | — | 0.5 | OEM-F-14 | — | — | — |
| 9 | TPS in | — | W60 | — | 0.5 | OEM-F-13 | — | — | — |
MS3PROEVOHC-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector out A | — | W52 | — | 0.5 | OEM-A-3 | — | — | — |
| 10 | Injector out F | — | W53 | — | 0.5 | OEM-A-14 | — | — | — |
| 11 | Injector out G | — | W54 | — | 0.5 | OEM-A-15 | — | — | — |
| 12 | Injector out H | — | W55 | — | 0.5 | OEM-A-16 | — | — | — |
| 13 | Spark out G | — | W44 | — | 0.5 | OEM-A-11 | — | — | — |
| 14 | Spark out E | — | W45 | — | 0.5 | OEM-A-24 | — | — | — |
| 15 | Spark out C | — | W46 | — | 0.5 | OEM-B-12 | — | — | — |
| 16 | Spark out H | — | W47 | — | 0.5 | OEM-B-11 | — | — | — |
| 17 | Digital frequency in 2 (Hall) | — | W83 | — | 0.5 | OEM-C-7 | — | — | — |
| 18 | Ground Shield Drain | — | — | — | — | — | — | — | — |
| 19 | Digital switched 12V in | — | — | — | — | — | — | — | — |
| 2 | Injector out B | — | W72 | — | 0.5 | OEM-A-21 | — | — | — |
| 20 | Digital switched in 2 | — | W85 | — | 0.5 | OEM-F-6 | — | — | — |
| 21 | Digital frequency in 3 (unconditioned) | — | W89 | — | 0.5 | OEM-C-4 | — | — | — |
| 22 | Digital Frequency in 3 (VR+) | — | W90 | — | 0.5 | OEM-C-6 | — | — | — |
| 23 | Digital Frequency In 3 (VR−) | — | — | — | — | — | — | — | — |
| 24 | Spark out F | — | W48 | — | 0.5 | OEM-B-10 | — | — | — |
| 25 | Spark out B | — | W49 | — | 0.5 | OEM-B-2 | — | — | — |
| 26 | Spark out D | — | — | — | — | — | — | — | — |
| 27 | Spark out A | — | — | — | — | — | — | — | — |
| 28 | Digital frequency in 1 (unconditioned) | — | W41 | — | 0.5 | OEM-B-5 | — | — | — |
| 29 | Digital switched in 3 | — | W86 | — | 0.5 | OEM-B-1 | — | — | — |
| 3 | Ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Stepper IAC out 1B | — | — | — | — | — | — | — | — |
| 31 | Stepper IAC out 1A | — | — | — | — | — | — | — | — |
| 32 | Stepper IAC out 2A | — | — | — | — | — | — | — | — |
| 33 | Stepper IAC out 2B | — | — | — | — | — | — | — | — |
| 34 | Digital Frequency in 1 (VR+) | — | W37 | — | 0.5 | OEM-B-7 | — | — | — |
| 35 | Digital Frequency in 1 (VR−) | — | W38 | — | 0.5 | SP-0V-1 | — | — | — |
| 4 | Injector out C | — | W73 | — | 0.5 | OEM-A-4 | — | — | — |
| 5 | Ground | — | W13 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Injector out D | — | W74 | — | 0.5 | OEM-A-6 | — | — | — |
| 7 | Ground | — | W14 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Injector out E | — | W75 | — | 0.5 | OEM-A-7 | — | — | — |
| 9 | Ground | — | W15 | — | 0.85 | SP-GND-1 | — | — | — |
MS3PROEVOHC-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PWM out 5 | — | W68 | — | 0.5 | OEM-A-23 | — | — | — |
| 10 | Digital switched in 5 | — | W88 | — | 0.5 | OEM-B-4 | — | — | — |
| 11 | Digital switched in 4 | — | W87 | — | 0.5 | OEM-B-3 | — | — | — |
| 12 | Digital I/O 5 | — | — | — | — | — | — | — | — |
| 13 | Digital I/O 3 | — | — | — | — | — | — | — | — |
| 14 | Digital I/O 1 | — | — | — | — | — | — | — | — |
| 15 | 5V+ VREF out 2 | — | W32 | — | 0.5 | OEM-D-10 | — | — | — |
| 17 | Sensor return | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Sensor return | — | W28 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor return | — | W29 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | PWM out 4 | — | W67 | — | 0.5 | OEM-A-22 | — | — | — |
| 20 | Sensor return | — | W30 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Sensor return | — | W31 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | 5V+ VREF out 1 | — | W33 | — | 0.5 | OEM-F-1 | — | — | — |
| 3 | Digital out 2 | — | W65 | — | 0.5 | OEM-A-8 | — | — | — |
| 4 | Digital out 1 | — | W58 | — | 0.5 | OEM-F-20 | — | — | — |
| 5 | Digital I/O 4 | — | — | — | — | — | — | — | — |
| 6 | Digital I/O 2 | — | — | — | — | — | — | — | — |
| 7 | Analog in 8 | — | — | — | — | — | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector 1 (INJ1) | — | W50 | — | 0.5 | MS3PROEVOHC-A-3 | — | — | — |
| 10 | Rear secondary O2 heater (RSO2SHTC) | — | W66 | — | 0.5 | MS3PROEVOHC-A-30 | — | — | — |
| 11 | Ignition coil 1 (IGN COIL1) | — | W44 | — | 0.5 | MS3PROEVOHC-B-13 | — | — | — |
| 12 | Power ground (PG1) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 13 | ECM power source (IGP1) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 14 | Injector 4 (INJ4) | — | W53 | — | 0.5 | MS3PROEVOHC-B-10 | — | — | — |
| 15 | Injector 5 (INJ5) | — | W54 | — | 0.5 | MS3PROEVOHC-B-11 | — | — | — |
| 16 | Injector 6 (INJ6) | — | W55 | — | 0.5 | MS3PROEVOHC-B-12 | — | — | — |
| 17 | EVAP bypass solenoid (2WBS) | — | W70 | — | 0.5 | MS3PROEVOHC-A-2 | — | — | — |
| 2 | Injector 2 (INJ2) | — | W51 | — | 0.5 | MS3PROEVOHC-A-4 | — | — | — |
| 20 | IAB control solenoid (IABCS) | — | W71 | — | 0.5 | MS3PROEVOHC-A-5 | — | — | — |
| 21 | EVAP purge control solenoid (PCS) | — | W72 | — | 0.5 | MS3PROEVOHC-B-2 | — | — | — |
| 22 | Front primary O2 heater (FPO2SHTC) | — | W67 | — | 0.5 | MS3PROEVOHC-C-2 | — | — | — |
| 23 | Rear primary O2 heater (RPO2SHTC) | — | W68 | — | 0.5 | MS3PROEVOHC-C-1 | — | — | — |
| 24 | Ignition coil 2 (IGN COIL2) | — | W45 | — | 0.5 | MS3PROEVOHC-B-14 | — | — | — |
| 25 | Power ground (PG2) | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 26 | Logic ground (LG1) | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W52 | — | 0.5 | MS3PROEVOHC-B-1 | — | — | — |
| 4 | EVAP canister vent shut valve (VSV) | — | W73 | — | 0.5 | MS3PROEVOHC-B-4 | — | — | — |
| 5 | Fuel pump relay (FLR1) | — | W56 | — | 0.5 | MS3PROEVOHC-A-28 | — | — | — |
| 6 | EGR control solenoid (ESOL) | — | W74 | — | 0.5 | MS3PROEVOHC-B-6 | — | — | — |
| 7 | Malfunction indicator lamp (MIL) | — | W75 | — | 0.5 | MS3PROEVOHC-B-8 | — | — | — |
| 8 | A/C clutch relay (ACC) | — | W65 | — | 0.5 | MS3PROEVOHC-C-3 | — | — | — |
| 9 | Front secondary O2 heater (FSO2SHTC) | — | W69 | — | 0.5 | MS3PROEVOHC-A-1 | — | — | — |
OEM-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTEC pressure switch front (VTP SWF) | — | W86 | — | 0.5 | MS3PROEVOHC-B-29 | — | — | — |
| 10 | Ignition coil 5 (IGN COIL5) | — | W48 | — | 0.5 | MS3PROEVOHC-B-24 | — | — | — |
| 11 | Ignition coil 4 (IGN COIL4) | — | W47 | — | 0.5 | MS3PROEVOHC-B-16 | — | — | — |
| 12 | Ignition coil 3 (IGN COIL3) | — | W46 | — | 0.5 | MS3PROEVOHC-B-15 | — | — | — |
| 13 | Cylinder position sensor 2 return (CYP 2M) | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | Cylinder position sensor 1 return (CYP 1M) | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | Crank position sensor 2 return (CKP 2M) | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Crank position sensor 1 return (CKP 1M) | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | Ignition coil 6 (IGN COIL6) | — | W49 | — | 0.5 | MS3PROEVOHC-B-25 | — | — | — |
| 3 | VTEC pressure switch rear (VTP SWR) | — | W87 | — | 0.5 | MS3PROEVOHC-C-11 | — | — | — |
| 4 | Neutral switch (NT SW, M/T) | — | W88 | — | 0.5 | MS3PROEVOHC-C-10 | — | — | — |
| 5 | Cylinder position sensor 2 + (CYP 2P) | — | W41 | — | 0.5 | MS3PROEVOHC-B-28 | — | — | — |
| 6 | Cylinder position sensor 1 + (CYP 1P) | — | W39 | — | 0.5 | MS3PROEVOHC-A-26 | — | — | — |
| 7 | Crank position sensor 2 + (CKP 2P) | — | W37 | — | 0.5 | MS3PROEVOHC-B-34 | — | — | — |
| 8 | Crank position sensor 1 + (CKP 1P) | — | W35 | — | 0.5 | MS3PROEVOHC-A-6 | — | — | — |
| 9 | Logic ground (LG2) | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ECM power source (IGP2) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Clutch switch (MTCLS, M/T) | — | W89 | — | 0.5 | MS3PROEVOHC-B-21 | — | — | — |
| 6 | Starter switch (STS) | — | W90 | — | 0.5 | MS3PROEVOHC-B-22 | — | — | — |
| 7 | Vehicle speed sensor (VSS) | — | W83 | — | 0.5 | MS3PROEVOHC-B-17 | — | — | — |
| 8 | Engine speed pulse (NEP) | — | W76 | — | 0.5 | MS3PROEVOHC-A-24 | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Backup power (VBU) | — | — | — | — | — | — | — | — |
| 10 | Sensor 5V supply (VCC2) | — | W32 | — | 0.5 | MS3PROEVOHC-C-15 | — | — | — |
| 11 | Sensor ground (SG2) | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Throttle position sensor (TPS) | — | W62 | — | 0.5 | MS3PROEVOHC-A-21 | — | — | — |
| 13 | Knock sensor front (KSF) | — | W42 | — | 0.5 | MS3PROEVOHC-A-31 | — | — | — |
| 16 | Front secondary O2 signal (O2S FS) | — | W77 | — | 0.5 | MS3PROEVOHC-A-25 | — | — | — |
| 17 | Rear secondary O2 signal (O2S RS) | — | W78 | — | 0.5 | MS3PROEVOHC-A-22 | — | — | — |
| 18 | Front primary O2 signal (O2S FP) | — | W79 | — | 0.5 | MS3PROEVOHC-A-23 | — | — | — |
| 19 | Rear primary O2 signal (O2S RP) | — | W80 | — | 0.5 | MS3PROEVOHC-A-12 | — | — | — |
| 2 | Knock sensor rear (KSR) | — | W43 | — | 0.5 | MS3PROEVOHC-A-7 | — | — | — |
| 20 | EGR valve lift sensor (EGRL) | — | W82 | — | 0.5 | MS3PROEVOHC-A-17 | — | — | — |
| 4 | K-line diagnostics | — | — | — | — | — | — | — | — |
| 7 | Engine coolant temperature (ECT) | — | W63 | — | 0.5 | MS3PROEVOHC-A-11 | — | — | — |
| 8 | Intake air temperature (IAT) | — | W81 | — | 0.5 | MS3PROEVOHC-A-10 | — | — | — |
| 9 | MAP sensor | — | W59 | — | 0.5 | MS3PROEVOHC-A-19 | — | — | — |
OEM-F
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor 5V supply (VCC1) | — | W33 | — | 0.5 | MS3PROEVOHC-C-22 | — | — | — |
| 12 | Accelerator pedal position 2 (AP2) | — | W61 | — | 0.5 | MS3PROEVOHC-A-20 | — | — | — |
| 13 | Accelerator pedal position 1 (AP1) | — | W60 | — | 0.5 | MS3PROEVOHC-A-9 | — | — | — |
| 14 | Accelerator pedal 5V supply (VCC3) | — | W34 | — | 0.5 | MS3PROEVOHC-A-8 | — | — | — |
| 15 | Accelerator pedal ground (SG3) | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Brake switch 1 (BKSW1) | — | W84 | — | 0.5 | MS3PROEVOHC-A-32 | — | — | — |
| 19 | VTEC solenoid front (VT SOLF) | — | W57 | — | 0.5 | MS3PROEVOHC-A-14 | — | — | — |
| 2 | Sensor ground (SG1) | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | VTEC solenoid rear (VT SOLR) | — | W58 | — | 0.5 | MS3PROEVOHC-C-4 | — | — | — |
| 4 | Fuel pump relay 2 (FLR2) | — | W64 | — | 0.5 | MS3PROEVOHC-A-29 | — | — | — |
| 6 | Brake switch 2 (BKSW2) | — | W85 | — | 0.5 | MS3PROEVOHC-B-20 | — | — | — |
OEM-G
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Throttle motor common power phases 2&4 (COM2) | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 11 | Throttle motor phase 3 (PM3) | — | — | — | — | — | — | — | — |
| 12 | Throttle motor phase 4 (PM4) | — | — | — | — | — | — | — | — |
| 2 | Throttle motor power source 1 (IGM1) | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Throttle motor power source 2 (IGM2) | — | W5 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Throttle motor phase 1 (PM1) | — | — | — | — | — | — | — | — |
| 5 | Throttle motor phase 2 (PM2) | — | — | — | — | — | — | — | — |
| 7 | Throttle motor ground 1 (PGM1) | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Throttle motor ground 2 (PGM2) | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 9 | Throttle motor common power phases 1&3 (COM1) | — | W6 | — | 0.85 | SP-14V-1 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W16 | — | 0.5 | OEM-A-26 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | OEM-B-13 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | OEM-B-14 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | OEM-B-15 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | OEM-B-16 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | OEM-B-9 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | OEM-D-11 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | OEM-F-15 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | OEM-F-2 | — | — | — |
| 1 | — | — | W25 | — | 0.5 | MS3PROEVOHC-A-13 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | MS3PROEVOHC-A-18 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | MS3PROEVOHC-C-17 | — | — | — |
| 1 | — | — | W28 | — | 0.5 | MS3PROEVOHC-C-18 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | MS3PROEVOHC-C-19 | — | — | — |
| 1 | — | — | W30 | — | 0.5 | MS3PROEVOHC-C-20 | — | — | — |
| 1 | — | — | W31 | — | 0.5 | MS3PROEVOHC-C-21 | — | — | — |
| 1 | — | — | W36 | — | 0.5 | MS3PROEVOHC-A-15 | — | — | — |
| 1 | — | — | W38 | — | 0.5 | MS3PROEVOHC-B-35 | — | — | — |
| 1 | — | — | W40 | — | 0.5 | MS3PROEVOHC-A-27 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-13 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-C-1 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | OEM-G-10 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-G-2 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-G-3 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-G-9 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | MS3PROEVOHC-A-35 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W8 | — | 0.85 | OEM-A-12 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | OEM-A-25 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | OEM-G-7 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | OEM-G-8 | — | — | — |
| 1 | — | — | W12 | — | 0.85 | MS3PROEVOHC-B-3 | — | — | — |
| 1 | — | — | W13 | — | 0.85 | MS3PROEVOHC-B-5 | — | — | — |
| 1 | — | — | W14 | — | 0.85 | MS3PROEVOHC-B-7 | — | — | — |
| 1 | — | — | W15 | — | 0.85 | MS3PROEVOHC-B-9 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1 | Injector 1 (INJ1) | injector_out | MS3PROEVOHC-A-3 | Injector out J | injector_out | single_source | |
| OEM-A-10 | Rear secondary O2 heater (RSO2SHTC) | low_side_out | MS3PROEVOHC-A-30 | PWM out 3 | low_side_out | single_source | |
| OEM-A-11 | Ignition coil 1 (IGN COIL1) | ignition_out | MS3PROEVOHC-B-13 | Spark out G | ignition_out | single_source | |
| OEM-A-12 | Power ground (PG1) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-A-13 | ECM power source (IGP1) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-A-14 | Injector 4 (INJ4) | injector_out | MS3PROEVOHC-B-10 | Injector out F | injector_out | single_source | |
| OEM-A-15 | Injector 5 (INJ5) | injector_out | MS3PROEVOHC-B-11 | Injector out G | injector_out | single_source | |
| OEM-A-16 | Injector 6 (INJ6) | injector_out | MS3PROEVOHC-B-12 | Injector out H | injector_out | single_source | |
| OEM-A-17 | EVAP bypass solenoid (2WBS) | low_side_out | MS3PROEVOHC-A-2 | High current out 2 | low_side_out | single_source | |
| OEM-A-2 | Injector 2 (INJ2) | injector_out | MS3PROEVOHC-A-4 | Injector out I | injector_out | single_source | |
| OEM-A-20 | IAB control solenoid (IABCS) | low_side_out | MS3PROEVOHC-A-5 | High current out 3 | low_side_out | single_source | |
| OEM-A-21 | EVAP purge control solenoid (PCS) | low_side_out | MS3PROEVOHC-B-2 | Injector out B | injector_out | single_source | |
| OEM-A-22 | Front primary O2 heater (FPO2SHTC) | low_side_out | MS3PROEVOHC-C-2 | PWM out 4 | low_side_out | single_source | |
| OEM-A-23 | Rear primary O2 heater (RPO2SHTC) | low_side_out | MS3PROEVOHC-C-1 | PWM out 5 | low_side_out | single_source | |
| OEM-A-24 | Ignition coil 2 (IGN COIL2) | ignition_out | MS3PROEVOHC-B-14 | Spark out E | ignition_out | single_source | |
| OEM-A-25 | Power ground (PG2) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-A-26 | Logic ground (LG1) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-A-3 | Injector 3 (INJ3) | injector_out | MS3PROEVOHC-B-1 | Injector out A | injector_out | single_source | |
| OEM-A-4 | EVAP canister vent shut valve (VSV) | low_side_out | MS3PROEVOHC-B-4 | Injector out C | injector_out | single_source | |
| OEM-A-5 | Fuel pump relay (FLR1) | low_side_out | MS3PROEVOHC-A-28 | Fuel pump relay out | low_side_out | single_source | |
| OEM-A-6 | EGR control solenoid (ESOL) | low_side_out | MS3PROEVOHC-B-6 | Injector out D | injector_out | single_source | |
| OEM-A-7 | Malfunction indicator lamp (MIL) | low_side_out | MS3PROEVOHC-B-8 | Injector out E | injector_out | single_source | |
| OEM-A-8 | A/C clutch relay (ACC) | low_side_out | MS3PROEVOHC-C-3 | Digital out 2 | low_side_out | single_source | |
| OEM-A-9 | Front secondary O2 heater (FSO2SHTC) | low_side_out | MS3PROEVOHC-A-1 | High current out 1 | low_side_out | single_source | |
| OEM-B-1 | VTEC pressure switch front (VTP SWF) | digital_in | MS3PROEVOHC-B-29 | Digital switched in 3 | digital_in | single_source | |
| OEM-B-10 | Ignition coil 5 (IGN COIL5) | ignition_out | MS3PROEVOHC-B-24 | Spark out F | ignition_out | single_source | |
| OEM-B-11 | Ignition coil 4 (IGN COIL4) | ignition_out | MS3PROEVOHC-B-16 | Spark out H | ignition_out | single_source | |
| OEM-B-12 | Ignition coil 3 (IGN COIL3) | ignition_out | MS3PROEVOHC-B-15 | Spark out C | ignition_out | single_source | |
| OEM-B-13 | Cylinder position sensor 2 return (CYP 2M) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-B-14 | Cylinder position sensor 1 return (CYP 1M) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-B-15 | Crank position sensor 2 return (CKP 2M) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-B-16 | Crank position sensor 1 return (CKP 1M) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-B-2 | Ignition coil 6 (IGN COIL6) | ignition_out | MS3PROEVOHC-B-25 | Spark out B | ignition_out | single_source | |
| OEM-B-3 | VTEC pressure switch rear (VTP SWR) | digital_in | MS3PROEVOHC-C-11 | Digital switched in 4 | digital_in | single_source | |
| OEM-B-4 | Neutral switch (NT SW, M/T) | digital_in | MS3PROEVOHC-C-10 | Digital switched in 5 | digital_in | single_source | |
| OEM-B-5 | Cylinder position sensor 2 + (CYP 2P) | trigger_in | MS3PROEVOHC-B-28 | Digital frequency in 1 (unconditioned) | digital_in | single_source | |
| OEM-B-6 | Cylinder position sensor 1 + (CYP 1P) | trigger_in | MS3PROEVOHC-A-26 | CMP+ | trigger_in | single_source | |
| OEM-B-7 | Crank position sensor 2 + (CKP 2P) | trigger_in | MS3PROEVOHC-B-34 | Digital Frequency in 1 (VR+) | digital_in | single_source | |
| OEM-B-8 | Crank position sensor 1 + (CKP 1P) | trigger_in | MS3PROEVOHC-A-6 | CKP+ | trigger_in | single_source | |
| OEM-B-9 | Logic ground (LG2) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-C-1 | ECM power source (IGP2) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-C-4 | Clutch switch (MTCLS, M/T) | digital_in | MS3PROEVOHC-B-21 | Digital frequency in 3 (unconditioned) | digital_in | single_source | |
| OEM-C-6 | Starter switch (STS) | digital_in | MS3PROEVOHC-B-22 | Digital Frequency in 3 (VR+) | digital_in | single_source | |
| OEM-C-7 | Vehicle speed sensor (VSS) | digital_in | MS3PROEVOHC-B-17 | Digital frequency in 2 (Hall) | digital_in | single_source | |
| OEM-C-8 | Engine speed pulse (NEP) | tacho_out | MS3PROEVOHC-A-24 | Tach out | tacho_out | single_source | |
| OEM-D-1 | Backup power (VBU) | power_in | — | — | — | single_source | |
| OEM-D-10 | Sensor 5V supply (VCC2) | vref | MS3PROEVOHC-C-15 | 5V+ VREF out 2 | vref | single_source | |
| OEM-D-11 | Sensor ground (SG2) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-D-12 | Throttle position sensor (TPS) | analog_in | MS3PROEVOHC-A-21 | Analog in 3 | analog_in | single_source | |
| OEM-D-13 | Knock sensor front (KSF) | knock_in | MS3PROEVOHC-A-31 | Knock in 1 | knock_in | single_source | |
| OEM-D-16 | Front secondary O2 signal (O2S FS) | lambda_nb_in | MS3PROEVOHC-A-25 | O2 in | lambda_nb_in | single_source | |
| OEM-D-17 | Rear secondary O2 signal (O2S RS) | lambda_nb_in | MS3PROEVOHC-A-22 | Analog In 4 | analog_in | single_source | |
| OEM-D-18 | Front primary O2 signal (O2S FP) | lambda_nb_in | MS3PROEVOHC-A-23 | Analog In 5 | analog_in | single_source | |
| OEM-D-19 | Rear primary O2 signal (O2S RP) | lambda_nb_in | MS3PROEVOHC-A-12 | Analog In 6 | analog_in | single_source | |
| OEM-D-2 | Knock sensor rear (KSR) | knock_in | MS3PROEVOHC-A-7 | Knock In 2 | knock_in | single_source | |
| OEM-D-20 | EGR valve lift sensor (EGRL) | analog_in | MS3PROEVOHC-A-17 | Analog In 7 | analog_in | single_source | |
| OEM-D-4 | K-line diagnostics | serial | — | — | — | single_source | |
| OEM-D-7 | Engine coolant temperature (ECT) | temp_in | MS3PROEVOHC-A-11 | CLT in | temp_in | single_source | |
| OEM-D-8 | Intake air temperature (IAT) | temp_in | MS3PROEVOHC-A-10 | MAT in | temp_in | single_source | |
| OEM-D-9 | MAP sensor | analog_in | MS3PROEVOHC-A-19 | Analog in 1 | analog_in | single_source | |
| OEM-F-1 | Sensor 5V supply (VCC1) | vref | MS3PROEVOHC-C-22 | 5V+ VREF out 1 | vref | single_source | |
| OEM-F-12 | Accelerator pedal position 2 (AP2) | analog_in | MS3PROEVOHC-A-20 | Analog in 2 | analog_in | single_source | |
| OEM-F-13 | Accelerator pedal position 1 (AP1) | analog_in | MS3PROEVOHC-A-9 | TPS in | analog_in | single_source | |
| OEM-F-14 | Accelerator pedal 5V supply (VCC3) | vref | MS3PROEVOHC-A-8 | 5V+ VREF out | vref | single_source | |
| OEM-F-15 | Accelerator pedal ground (SG3) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-F-16 | Brake switch 1 (BKSW1) | digital_in | MS3PROEVOHC-A-32 | Digital switched in 1 | digital_in | single_source | |
| OEM-F-19 | VTEC solenoid front (VT SOLF) | low_side_out | MS3PROEVOHC-A-14 | PWM / Idle Out 1 | low_side_out | single_source | |
| OEM-F-2 | Sensor ground (SG1) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-B-35 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Digital Frequency in 1 (VR−) + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | digital_in + sensor_ground + trigger_in | single_source | |
| OEM-F-20 | VTEC solenoid rear (VT SOLR) | low_side_out | MS3PROEVOHC-C-4 | Digital out 1 | low_side_out | single_source | |
| OEM-F-4 | Fuel pump relay 2 (FLR2) | low_side_out | MS3PROEVOHC-A-29 | PWM out 2 | low_side_out | single_source | |
| OEM-F-6 | Brake switch 2 (BKSW2) | digital_in | MS3PROEVOHC-B-20 | Digital switched in 2 | digital_in | single_source | |
| OEM-G-10 | Throttle motor common power phases 2&4 (COM2) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-G-11 | Throttle motor phase 3 (PM3) | hbridge_out | — | — | — | single_source | |
| OEM-G-12 | Throttle motor phase 4 (PM4) | hbridge_out | — | — | — | single_source | |
| OEM-G-2 | Throttle motor power source 1 (IGM1) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-G-3 | Throttle motor power source 2 (IGM2) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-G-4 | Throttle motor phase 1 (PM1) | hbridge_out | — | — | — | single_source | |
| OEM-G-5 | Throttle motor phase 2 (PM2) | hbridge_out | — | — | — | single_source | |
| OEM-G-7 | Throttle motor ground 1 (PGM1) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-G-8 | Throttle motor ground 2 (PGM2) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-G-9 | Throttle motor common power phases 1&3 (COM1) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-13 | SP-14V-1 | 0.85 | no route | ECM power source (IGP1) | — | |
| W2 | OEM-C-1 | SP-14V-1 | 0.85 | no route | ECM power source (IGP2) | — | |
| W3 | OEM-G-10 | SP-14V-1 | 0.85 | no route | Throttle motor common power phases 2&4 (COM2) | — | |
| W4 | OEM-G-2 | SP-14V-1 | 0.85 | no route | Throttle motor power source 1 (IGM1) | — | |
| W5 | OEM-G-3 | SP-14V-1 | 0.85 | no route | Throttle motor power source 2 (IGM2) | — | |
| W6 | OEM-G-9 | SP-14V-1 | 0.85 | no route | Throttle motor common power phases 1&3 (COM1) | — | |
| W7 | SP-14V-1 | MS3PROEVOHC-A-35 | 0.85 | no route | 12V+ switched power in | — | |
| W8 | OEM-A-12 | SP-GND-1 | 0.85 | no route | Power ground (PG1) | — | |
| W9 | OEM-A-25 | SP-GND-1 | 0.85 | no route | Power ground (PG2) | — | |
| W10 | OEM-G-7 | SP-GND-1 | 0.85 | no route | Throttle motor ground 1 (PGM1) | — | |
| W11 | OEM-G-8 | SP-GND-1 | 0.85 | no route | Throttle motor ground 2 (PGM2) | — | |
| W12 | SP-GND-1 | MS3PROEVOHC-B-3 | 0.85 | no route | Ground | — | |
| W13 | SP-GND-1 | MS3PROEVOHC-B-5 | 0.85 | no route | Ground | — | |
| W14 | SP-GND-1 | MS3PROEVOHC-B-7 | 0.85 | no route | Ground | — | |
| W15 | SP-GND-1 | MS3PROEVOHC-B-9 | 0.85 | no route | Ground | — | |
| W16 | OEM-A-26 | SP-0V-1 | 0.5 | no route | Logic ground (LG1) | — | |
| W17 | OEM-B-13 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 2 return (CYP 2M) | — | |
| W18 | OEM-B-14 | SP-0V-1 | 0.5 | no route | Cylinder position sensor 1 return (CYP 1M) | — | |
| W19 | OEM-B-15 | SP-0V-1 | 0.5 | no route | Crank position sensor 2 return (CKP 2M) | — | |
| W20 | OEM-B-16 | SP-0V-1 | 0.5 | no route | Crank position sensor 1 return (CKP 1M) | — | |
| W21 | OEM-B-9 | SP-0V-1 | 0.5 | no route | Logic ground (LG2) | — | |
| W22 | OEM-D-11 | SP-0V-1 | 0.5 | no route | Sensor ground (SG2) | — | |
| W23 | OEM-F-15 | SP-0V-1 | 0.5 | no route | Accelerator pedal ground (SG3) | — | |
| W24 | OEM-F-2 | SP-0V-1 | 0.5 | no route | Sensor ground (SG1) | — | |
| W25 | SP-0V-1 | MS3PROEVOHC-A-13 | 0.5 | no route | Logic Ground | — | |
| W26 | SP-0V-1 | MS3PROEVOHC-A-18 | 0.5 | no route | Sensor return | — | |
| W27 | SP-0V-1 | MS3PROEVOHC-C-17 | 0.5 | no route | Sensor return | — | |
| W28 | SP-0V-1 | MS3PROEVOHC-C-18 | 0.5 | no route | Sensor return | — | |
| W29 | SP-0V-1 | MS3PROEVOHC-C-19 | 0.5 | no route | Sensor return | — | |
| W30 | SP-0V-1 | MS3PROEVOHC-C-20 | 0.5 | no route | Sensor return | — | |
| W31 | SP-0V-1 | MS3PROEVOHC-C-21 | 0.5 | no route | Sensor return | — | |
| W32 | OEM-D-10 | MS3PROEVOHC-C-15 | 0.5 | no route | Sensor 5V supply (VCC2) | — | |
| W33 | OEM-F-1 | MS3PROEVOHC-C-22 | 0.5 | no route | Sensor 5V supply (VCC1) | — | |
| W34 | OEM-F-14 | MS3PROEVOHC-A-8 | 0.5 | no route | Accelerator pedal 5V supply (VCC3) | — | |
| W35 | OEM-B-8 | MS3PROEVOHC-A-6 | 0.5 | no route | Crank position sensor 1 + (CKP 1P) | — | |
| W36 | SP-0V-1 | MS3PROEVOHC-A-15 | 0.5 | no route | CKP− | — | |
| W37 | OEM-B-7 | MS3PROEVOHC-B-34 | 0.5 | no route | Crank position sensor 2 + (CKP 2P) | — | |
| W38 | SP-0V-1 | MS3PROEVOHC-B-35 | 0.5 | no route | Digital Frequency in 1 (VR−) | — | |
| W39 | OEM-B-6 | MS3PROEVOHC-A-26 | 0.5 | no route | Cylinder position sensor 1 + (CYP 1P) | — | |
| W40 | SP-0V-1 | MS3PROEVOHC-A-27 | 0.5 | no route | CMP− | — | |
| W41 | OEM-B-5 | MS3PROEVOHC-B-28 | 0.5 | no route | Cylinder position sensor 2 + (CYP 2P) | — | |
| W42 | OEM-D-13 | MS3PROEVOHC-A-31 | 0.5 | no route | Knock sensor front (KSF) | — | |
| W43 | OEM-D-2 | MS3PROEVOHC-A-7 | 0.5 | no route | Knock sensor rear (KSR) | — | |
| W44 | OEM-A-11 | MS3PROEVOHC-B-13 | 0.5 | no route | Ignition coil 1 (IGN COIL1) | — | |
| W45 | OEM-A-24 | MS3PROEVOHC-B-14 | 0.5 | no route | Ignition coil 2 (IGN COIL2) | — | |
| W46 | OEM-B-12 | MS3PROEVOHC-B-15 | 0.5 | no route | Ignition coil 3 (IGN COIL3) | — | |
| W47 | OEM-B-11 | MS3PROEVOHC-B-16 | 0.5 | no route | Ignition coil 4 (IGN COIL4) | — | |
| W48 | OEM-B-10 | MS3PROEVOHC-B-24 | 0.5 | no route | Ignition coil 5 (IGN COIL5) | — | |
| W49 | OEM-B-2 | MS3PROEVOHC-B-25 | 0.5 | no route | Ignition coil 6 (IGN COIL6) | — | |
| W50 | OEM-A-1 | MS3PROEVOHC-A-3 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W51 | OEM-A-2 | MS3PROEVOHC-A-4 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W52 | OEM-A-3 | MS3PROEVOHC-B-1 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W53 | OEM-A-14 | MS3PROEVOHC-B-10 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W54 | OEM-A-15 | MS3PROEVOHC-B-11 | 0.5 | no route | Injector 5 (INJ5) | — | |
| W55 | OEM-A-16 | MS3PROEVOHC-B-12 | 0.5 | no route | Injector 6 (INJ6) | — | |
| W56 | OEM-A-5 | MS3PROEVOHC-A-28 | 0.5 | no route | Fuel pump relay (FLR1) | — | |
| W57 | OEM-F-19 | MS3PROEVOHC-A-14 | 0.5 | no route | VTEC solenoid front (VT SOLF) | — | |
| W58 | OEM-F-20 | MS3PROEVOHC-C-4 | 0.5 | no route | VTEC solenoid rear (VT SOLR) | — | |
| W59 | OEM-D-9 | MS3PROEVOHC-A-19 | 0.5 | no route | MAP sensor | — | |
| W60 | OEM-F-13 | MS3PROEVOHC-A-9 | 0.5 | no route | Accelerator pedal position 1 (AP1) | — | |
| W61 | OEM-F-12 | MS3PROEVOHC-A-20 | 0.5 | no route | Accelerator pedal position 2 (AP2) | — | |
| W62 | OEM-D-12 | MS3PROEVOHC-A-21 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W63 | OEM-D-7 | MS3PROEVOHC-A-11 | 0.5 | no route | Engine coolant temperature (ECT) | — | |
| W64 | OEM-F-4 | MS3PROEVOHC-A-29 | 0.5 | no route | Fuel pump relay 2 (FLR2) | — | |
| W65 | OEM-A-8 | MS3PROEVOHC-C-3 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W66 | OEM-A-10 | MS3PROEVOHC-A-30 | 0.5 | no route | Rear secondary O2 heater (RSO2SHTC) | — | |
| W67 | OEM-A-22 | MS3PROEVOHC-C-2 | 0.5 | no route | Front primary O2 heater (FPO2SHTC) | — | |
| W68 | OEM-A-23 | MS3PROEVOHC-C-1 | 0.5 | no route | Rear primary O2 heater (RPO2SHTC) | — | |
| W69 | OEM-A-9 | MS3PROEVOHC-A-1 | 0.5 | no route | Front secondary O2 heater (FSO2SHTC) | — | |
| W70 | OEM-A-17 | MS3PROEVOHC-A-2 | 0.5 | no route | EVAP bypass solenoid (2WBS) | — | |
| W71 | OEM-A-20 | MS3PROEVOHC-A-5 | 0.5 | no route | IAB control solenoid (IABCS) | — | |
| W72 | OEM-A-21 | MS3PROEVOHC-B-2 | 0.5 | no route | EVAP purge control solenoid (PCS) | — | |
| W73 | OEM-A-4 | MS3PROEVOHC-B-4 | 0.5 | no route | EVAP canister vent shut valve (VSV) | — | |
| W74 | OEM-A-6 | MS3PROEVOHC-B-6 | 0.5 | no route | EGR control solenoid (ESOL) | — | |
| W75 | OEM-A-7 | MS3PROEVOHC-B-8 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W76 | OEM-C-8 | MS3PROEVOHC-A-24 | 0.5 | no route | Engine speed pulse (NEP) | — | |
| W77 | OEM-D-16 | MS3PROEVOHC-A-25 | 0.5 | no route | Front secondary O2 signal (O2S FS) | — | |
| W78 | OEM-D-17 | MS3PROEVOHC-A-22 | 0.5 | no route | Rear secondary O2 signal (O2S RS) | — | |
| W79 | OEM-D-18 | MS3PROEVOHC-A-23 | 0.5 | no route | Front primary O2 signal (O2S FP) | — | |
| W80 | OEM-D-19 | MS3PROEVOHC-A-12 | 0.5 | no route | Rear primary O2 signal (O2S RP) | — | |
| W81 | OEM-D-8 | MS3PROEVOHC-A-10 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W82 | OEM-D-20 | MS3PROEVOHC-A-17 | 0.5 | no route | EGR valve lift sensor (EGRL) | — | |
| W83 | OEM-C-7 | MS3PROEVOHC-B-17 | 0.5 | no route | Vehicle speed sensor (VSS) | — | |
| W84 | OEM-F-16 | MS3PROEVOHC-A-32 | 0.5 | no route | Brake switch 1 (BKSW1) | — | |
| W85 | OEM-F-6 | MS3PROEVOHC-B-20 | 0.5 | no route | Brake switch 2 (BKSW2) | — | |
| W86 | OEM-B-1 | MS3PROEVOHC-B-29 | 0.5 | no route | VTEC pressure switch front (VTP SWF) | — | |
| W87 | OEM-B-3 | MS3PROEVOHC-C-11 | 0.5 | no route | VTEC pressure switch rear (VTP SWR) | — | |
| W88 | OEM-B-4 | MS3PROEVOHC-C-10 | 0.5 | no route | Neutral switch (NT SW, M/T) | — | |
| W89 | OEM-C-4 | MS3PROEVOHC-B-21 | 0.5 | no route | Clutch switch (MTCLS, M/T) | — | |
| W90 | OEM-C-6 | MS3PROEVOHC-B-22 | 0.5 | no route | Starter switch (STS) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (15)
| Severity | Code | Subject | Message |
|---|---|---|---|
| error | DBW_SENSOR_INPUT | tps | Only 0 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them. |
| error | REQUIRED_UNMAPPED | OEM-G-11 | Required OEM function "Throttle motor phase 3 (PM3)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-12 | Required OEM function "Throttle motor phase 4 (PM4)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-4 | Required OEM function "Throttle motor phase 1 (PM1)" (hbridge_out) is not connected to the new ECU. |
| error | REQUIRED_UNMAPPED | OEM-G-5 | Required OEM function "Throttle motor phase 2 (PM2)" (hbridge_out) is not connected to the new ECU. |
| warn | NET_FAMILY | MS3PROEVOHC-A-27 ↔ MS3PROEVOHC-B-35 | MS3PROEVOHC-A-27 "CMP−" [trigger_in] is wired to MS3PROEVOHC-B-35 "Digital Frequency in 1 (VR−)" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-B-5 ↔ MS3PROEVOHC-B-28 | OEM-B-5 "Cylinder position sensor 2 + (CYP 2P)" [trigger_in] is wired to MS3PROEVOHC-B-28 "Digital frequency in 1 (unconditioned)" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| warn | NET_FAMILY | OEM-B-7 ↔ MS3PROEVOHC-B-34 | OEM-B-7 "Crank position sensor 2 + (CKP 2P)" [trigger_in] is wired to MS3PROEVOHC-B-34 "Digital Frequency in 1 (VR+)" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot. |
| info | NET_FAMILY | MS3PROEVOHC-A-15 ↔ MS3PROEVOHC-A-18 | MS3PROEVOHC-A-15 "CKP−" [trigger_in] is wired to MS3PROEVOHC-A-18 "Sensor return" [sensor_ground]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | MS3PROEVOHC-B-35 ↔ MS3PROEVOHC-C-20 | MS3PROEVOHC-B-35 "Digital Frequency in 1 (VR−)" [digital_in] is wired to MS3PROEVOHC-C-20 "Sensor return" [sensor_ground]. A digital input used as a ground/identification strap (e.g. AT/MT ID is grounded on manual cars) is compatible with a sensor ground. |
| info | NET_FAMILY | OEM-A-21 ↔ MS3PROEVOHC-B-2 | OEM-A-21 "EVAP purge control solenoid (PCS)" [low_side_out] is wired to MS3PROEVOHC-B-2 "Injector out B" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-4 ↔ MS3PROEVOHC-B-4 | OEM-A-4 "EVAP canister vent shut valve (VSV)" [low_side_out] is wired to MS3PROEVOHC-B-4 "Injector out C" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-6 ↔ MS3PROEVOHC-B-6 | OEM-A-6 "EGR control solenoid (ESOL)" [low_side_out] is wired to MS3PROEVOHC-B-6 "Injector out D" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-7 ↔ MS3PROEVOHC-B-8 | OEM-A-7 "Malfunction indicator lamp (MIL)" [low_side_out] is wired to MS3PROEVOHC-B-8 "Injector out E" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 1 optional OEM pins are not mapped: OEM-D-4 K-line diagnostics |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-D-1 | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
Notes
Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Honda C32B not found in the ECU's docs (MS3 decoder list has no C30A/C32B/NSX (K24A2, RC51/AP1 S2000, TSX/D17, J-series)) - This car has Honda Type 1A (1997+) immobilizer; needs a delete/bypass Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-G 4: Throttle motor phase 1 (PM1): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 5: Throttle motor phase 2 (PM2): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 11: Throttle motor phase 3 (PM3): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-G 12: Throttle motor phase 4 (PM4): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand Not wired: - OEM-D 1: Backup power (VBU): AMP EFI MS3Pro EVO+ HC has no battery-constant input; not needed - OEM-D 4: K-line diagnostics: no free k_line on AMP EFI MS3Pro EVO+ HC - MS3PROEVOHC-B 19: Digital switched 12V in: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | vendor_doc | 1997-2005 Acura NSX Service Manual §11 (PGM-FI), ECM terminal arrangement | https://www.manualslib.com/manual/1540331/Acura-Nsx-1997.html | — | — | — |
| 4 | vendor_doc | AMP EFI: MS3Pro EVO+ / EVO+ HC manual (fw 1.6.1) pinout tables | https://cdn.shopify.com/s/files/1/0960/0014/7754/files/MS3Pro_User_Manual_Firmware_1.6.1_EVO.pdf?v=1760643022 | archive | 2026-10-05 | d5dd8a31822d |