RSX Type-S 2002-04 (K20A2) → AMP EFI MS3Pro EVO+ HC (auto)
RSX Type-S 2002-04 (K20A2) — AMP EFI — MS3Pro EVO+ HC
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-08
Before you start
| Status | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 72 wires · 9 connectors · 4 part lines |
| Tools | 715131-1 · wire strippers · multimeter · heat gun + heat-shrink |
| Terminals | 316836-1 |
| 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-2 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | MS3PROEVOHC-A-35 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-23 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-24 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-4 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-5 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | OEM-E-3 | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | MS3PROEVOHC-B-3 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | MS3PROEVOHC-B-5 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | MS3PROEVOHC-B-7 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-GND-1 | MS3PROEVOHC-B-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-A-10 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-A-11 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-E-4 | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | MS3PROEVOHC-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | MS3PROEVOHC-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | MS3PROEVOHC-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | MS3PROEVOHC-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | MS3PROEVOHC-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | MS3PROEVOHC-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | MS3PROEVOHC-C-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-20 | MS3PROEVOHC-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-21 | MS3PROEVOHC-C-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-E-5 | MS3PROEVOHC-C-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-7 | MS3PROEVOHC-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-0V-1 | MS3PROEVOHC-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-25 | MS3PROEVOHC-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | SP-0V-1 | MS3PROEVOHC-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-26 | MS3PROEVOHC-B-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | SP-0V-1 | MS3PROEVOHC-B-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-9 | MS3PROEVOHC-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-30 | MS3PROEVOHC-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-29 | MS3PROEVOHC-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-A-28 | MS3PROEVOHC-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-27 | MS3PROEVOHC-B-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-B-5 | MS3PROEVOHC-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-B-4 | MS3PROEVOHC-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-B-3 | MS3PROEVOHC-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-B-2 | MS3PROEVOHC-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-E-9 | MS3PROEVOHC-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-E-7 | MS3PROEVOHC-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-B-6 | MS3PROEVOHC-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-E-1 | MS3PROEVOHC-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-E-18 | MS3PROEVOHC-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-E-8 | MS3PROEVOHC-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-E-6 | MS3PROEVOHC-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-1 | MS3PROEVOHC-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-12 | MS3PROEVOHC-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-B-15 | MS3PROEVOHC-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-B-1 | MS3PROEVOHC-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-B-18 | MS3PROEVOHC-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-B-21 | MS3PROEVOHC-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-B-23 | MS3PROEVOHC-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-B-7 | MS3PROEVOHC-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-E-21 | MS3PROEVOHC-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-E-31 | MS3PROEVOHC-B-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-E-26 | MS3PROEVOHC-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-A-19 | MS3PROEVOHC-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-A-15 | MS3PROEVOHC-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-E-2 | MS3PROEVOHC-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-B-8 | MS3PROEVOHC-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-B-17 | MS3PROEVOHC-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-B-13 | MS3PROEVOHC-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-E-14 | MS3PROEVOHC-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-E-15 | MS3PROEVOHC-A-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-A-18 | MS3PROEVOHC-B-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W68 | OEM-B-10 | MS3PROEVOHC-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W69 | OEM-B-9 | MS3PROEVOHC-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W70 | OEM-E-16 | MS3PROEVOHC-B-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W71 | OEM-E-20 | MS3PROEVOHC-C-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W72 | OEM-E-22 | MS3PROEVOHC-C-10 | 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-35 | MS3PROEVOHC-B-3 | open (OL) | +12 V supply must not touch power ground | |
| 3 | MS3PROEVOHC-A-13 | MS3PROEVOHC-A-8 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | MS3PROEVOHC-A-13 | MS3PROEVOHC-C-15 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 5 | MS3PROEVOHC-A-13 | MS3PROEVOHC-C-22 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 6 | MS3PROEVOHC-A-35 | MS3PROEVOHC-A-8 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 7 | MS3PROEVOHC-A-35 | MS3PROEVOHC-C-15 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 8 | MS3PROEVOHC-A-35 | MS3PROEVOHC-C-22 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 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 |
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 | — | W50 | — | 0.5 | OEM-B-15 | — | — | — |
| 10 | MAT in | — | W62 | — | 0.5 | OEM-B-8 | — | — | — |
| 11 | CLT in | — | W63 | — | 0.5 | OEM-B-17 | — | — | — |
| 12 | Analog In 6 | — | — | — | — | — | — | — | — |
| 13 | Logic Ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | PWM / Idle Out 1 | — | W43 | — | 0.5 | OEM-B-6 | — | — | — |
| 15 | CKP− | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Ground Shield Drain | — | — | — | — | — | — | — | — |
| 17 | Analog In 7 | — | — | — | — | — | — | — | — |
| 18 | Sensor return | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Analog in 1 | — | W59 | — | 0.5 | OEM-A-19 | — | — | — |
| 2 | High current out 2 | — | W51 | — | 0.5 | OEM-B-1 | — | — | — |
| 20 | Analog in 2 | — | W64 | — | 0.5 | OEM-B-13 | — | — | — |
| 21 | Analog in 3 | — | W65 | — | 0.5 | OEM-E-14 | — | — | — |
| 22 | Analog In 4 | — | W66 | — | 0.5 | OEM-E-15 | — | — | — |
| 23 | Analog In 5 | — | — | — | — | — | — | — | — |
| 24 | Tach out | — | W58 | — | 0.5 | OEM-E-26 | — | — | — |
| 25 | O2 in | — | W61 | — | 0.5 | OEM-E-2 | — | — | — |
| 26 | CMP+ | — | W28 | — | 0.5 | OEM-A-25 | — | — | — |
| 27 | CMP− | — | W29 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Fuel pump relay out | — | W42 | — | 0.5 | OEM-E-7 | — | — | — |
| 29 | PWM out 2 | — | W45 | — | 0.5 | OEM-E-18 | — | — | — |
| 3 | Injector out J | — | W37 | — | 0.5 | OEM-B-5 | — | — | — |
| 30 | PWM out 3 | — | W47 | — | 0.5 | OEM-E-6 | — | — | — |
| 31 | Knock in 1 | — | W32 | — | 0.5 | OEM-A-9 | — | — | — |
| 32 | Digital switched in 1 | — | W68 | — | 0.5 | OEM-B-10 | — | — | — |
| 33 | CAN L | — | — | — | — | — | — | — | — |
| 34 | CAN H | — | — | — | — | — | — | — | — |
| 35 | 12V+ switched power in | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Injector out I | — | W38 | — | 0.5 | OEM-B-4 | — | — | — |
| 5 | High current out 3 | — | W52 | — | 0.5 | OEM-B-18 | — | — | — |
| 6 | CKP+ | — | W26 | — | 0.5 | OEM-A-7 | — | — | — |
| 7 | Knock In 2 | — | — | — | — | — | — | — | — |
| 8 | 5V+ VREF out | — | W23 | — | 0.5 | OEM-A-20 | — | — | — |
| 9 | TPS in | — | W60 | — | 0.5 | OEM-A-15 | — | — | — |
MS3PROEVOHC-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector out A | — | W39 | — | 0.5 | OEM-B-3 | — | — | — |
| 10 | Injector out F | — | W40 | — | 0.5 | OEM-B-2 | — | — | — |
| 11 | Injector out G | — | W53 | — | 0.5 | OEM-B-21 | — | — | — |
| 12 | Injector out H | — | W54 | — | 0.5 | OEM-B-23 | — | — | — |
| 13 | Spark out G | — | W33 | — | 0.5 | OEM-A-30 | — | — | — |
| 14 | Spark out E | — | W34 | — | 0.5 | OEM-A-29 | — | — | — |
| 15 | Spark out C | — | W35 | — | 0.5 | OEM-A-28 | — | — | — |
| 16 | Spark out H | — | W36 | — | 0.5 | OEM-A-27 | — | — | — |
| 17 | Digital frequency in 2 (Hall) | — | — | — | — | — | — | — | — |
| 18 | Ground Shield Drain | — | — | — | — | — | — | — | — |
| 19 | Digital switched 12V in | — | W41 | — | 0.5 | OEM-E-9 | — | — | — |
| 2 | Injector out B | — | W55 | — | 0.5 | OEM-B-7 | — | — | — |
| 20 | Digital switched in 2 | — | W69 | — | 0.5 | OEM-B-9 | — | — | — |
| 21 | Digital frequency in 3 (unconditioned) | — | — | — | — | — | — | — | — |
| 22 | Digital Frequency in 3 (VR+) | — | — | — | — | — | — | — | — |
| 23 | Digital Frequency In 3 (VR−) | — | — | — | — | — | — | — | — |
| 24 | Spark out F | — | — | — | — | — | — | — | — |
| 25 | Spark out B | — | — | — | — | — | — | — | — |
| 26 | Spark out D | — | — | — | — | — | — | — | — |
| 27 | Spark out A | — | — | — | — | — | — | — | — |
| 28 | Digital frequency in 1 (unconditioned) | — | W67 | — | 0.5 | OEM-A-18 | — | — | — |
| 29 | Digital switched in 3 | — | W70 | — | 0.5 | OEM-E-16 | — | — | — |
| 3 | Ground | — | W9 | — | 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+) | — | W30 | — | 0.5 | OEM-A-26 | — | — | — |
| 35 | Digital Frequency in 1 (VR−) | — | W31 | — | 0.5 | SP-0V-1 | — | — | — |
| 4 | Injector out C | — | W56 | — | 0.5 | OEM-E-21 | — | — | — |
| 5 | Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Injector out D | — | W57 | — | 0.5 | OEM-E-31 | — | — | — |
| 7 | Ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Injector out E | — | — | — | — | — | — | — | — |
| 9 | Ground | — | W12 | — | 0.85 | SP-GND-1 | — | — | — |
MS3PROEVOHC-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PWM out 5 | — | W49 | — | 0.5 | OEM-A-12 | — | — | — |
| 10 | Digital switched in 5 | — | W72 | — | 0.5 | OEM-E-22 | — | — | — |
| 11 | Digital switched in 4 | — | W71 | — | 0.5 | OEM-E-20 | — | — | — |
| 12 | Digital I/O 5 | — | — | — | — | — | — | — | — |
| 13 | Digital I/O 3 | — | — | — | — | — | — | — | — |
| 14 | Digital I/O 1 | — | — | — | — | — | — | — | — |
| 15 | 5V+ VREF out 2 | — | W24 | — | 0.5 | OEM-A-21 | — | — | — |
| 17 | Sensor return | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Sensor return | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor return | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | PWM out 4 | — | W48 | — | 0.5 | OEM-A-1 | — | — | — |
| 20 | Sensor return | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Sensor return | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | 5V+ VREF out 1 | — | W25 | — | 0.5 | OEM-E-5 | — | — | — |
| 3 | Digital out 2 | — | W46 | — | 0.5 | OEM-E-8 | — | — | — |
| 4 | Digital out 1 | — | W44 | — | 0.5 | OEM-E-1 | — | — | — |
| 5 | Digital I/O 4 | — | — | — | — | — | — | — | — |
| 6 | Digital I/O 2 | — | — | — | — | — | — | — | — |
| 7 | Analog in 8 | — | — | — | — | — | — | — | — |
OEM-A
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A/F sensor heater control (AFSHTC) | — | W48 | — | 0.5 | MS3PROEVOHC-C-2 | — | — | — |
| 2 | Ignition power 2 (IGP2) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Ignition power 1 (IGP1) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Power ground 2 (PG2) | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 5 | Power ground 1 (PG1) | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | A/F sensor + (AFS+, wideband Ip) | — | — | — | — | — | — | — | — |
| 7 | Crank position sensor (CKP) | — | W26 | — | 0.5 | MS3PROEVOHC-A-6 | — | — | — |
| 8 | — | — | — | — | — | — | — | — | — |
| 9 | Knock sensor (KS) | — | W32 | — | 0.5 | MS3PROEVOHC-A-31 | — | — | — |
| 10 | Sensor ground 2 (SG2) | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 11 | Sensor ground 1 (SG1) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 12 | Idle air control valve (IACV) | — | W49 | — | 0.5 | MS3PROEVOHC-C-1 | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | Throttle position sensor (TPS) | — | W60 | — | 0.5 | MS3PROEVOHC-A-9 | — | — | — |
| 16 | A/F sensor - (AFS-, wideband Vs) | — | — | — | — | — | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | Vehicle speed sensor (VSS, M/T) | — | W67 | — | 0.5 | MS3PROEVOHC-B-28 | — | — | — |
| 19 | Manifold absolute pressure (MAP) | — | W59 | — | 0.5 | MS3PROEVOHC-A-19 | — | — | — |
| 20 | Sensor 5V supply 2 (VCC2) | — | W23 | — | 0.5 | MS3PROEVOHC-A-8 | — | — | — |
| 21 | Sensor 5V supply 1 (VCC1) | — | W24 | — | 0.5 | MS3PROEVOHC-C-15 | — | — | — |
| 22 | A/F sensor heater supply (AFSHTC+) | — | — | — | — | — | — | — | — |
| 23 | Logic ground 2 (LG2) | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 24 | Logic ground 1 (LG1) | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | Camshaft position A (CMP A) | — | W28 | — | 0.5 | MS3PROEVOHC-A-26 | — | — | — |
| 26 | Camshaft position B (CMP B) | — | W30 | — | 0.5 | MS3PROEVOHC-B-34 | — | — | — |
| 27 | Ignition coil 4 (IGPLS4) | — | W36 | — | 0.5 | MS3PROEVOHC-B-16 | — | — | — |
| 28 | Ignition coil 3 (IGPLS3) | — | W35 | — | 0.5 | MS3PROEVOHC-B-15 | — | — | — |
| 29 | Ignition coil 2 (IGPLS2) | — | W34 | — | 0.5 | MS3PROEVOHC-B-14 | — | — | — |
| 30 | Ignition coil 1 (IGPLS1) | — | W33 | — | 0.5 | MS3PROEVOHC-B-13 | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — |
OEM-B
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VTC oil control solenoid (+) | — | W51 | — | 0.5 | MS3PROEVOHC-A-2 | — | — | — |
| 2 | Injector 4 (INJ4) | — | W40 | — | 0.5 | MS3PROEVOHC-B-10 | — | — | — |
| 3 | Injector 3 (INJ3) | — | W39 | — | 0.5 | MS3PROEVOHC-B-1 | — | — | — |
| 4 | Injector 2 (INJ2) | — | W38 | — | 0.5 | MS3PROEVOHC-A-4 | — | — | — |
| 5 | Injector 1 (INJ1) | — | W37 | — | 0.5 | MS3PROEVOHC-A-3 | — | — | — |
| 6 | Radiator fan control (FANC) | — | W43 | — | 0.5 | MS3PROEVOHC-A-14 | — | — | — |
| 7 | Reverse lockout solenoid (RVS, Type-S) | — | W55 | — | 0.5 | MS3PROEVOHC-B-2 | — | — | — |
| 8 | Coolant temp sensor (ECT) | — | W62 | — | 0.5 | MS3PROEVOHC-A-10 | — | — | — |
| 9 | VTEC oil pressure switch (VTPSW) | — | W69 | — | 0.5 | MS3PROEVOHC-B-20 | — | — | — |
| 10 | Alternator L signal (ALTL) | — | W68 | — | 0.5 | MS3PROEVOHC-A-32 | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | Alternator FR signal (ALTF) | — | W64 | — | 0.5 | MS3PROEVOHC-A-20 | — | — | — |
| 14 | — | — | — | — | — | — | — | — | — |
| 15 | VTEC solenoid (VTS) | — | W50 | — | 0.5 | MS3PROEVOHC-A-1 | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — |
| 17 | Intake air temp sensor (IAT) | — | W63 | — | 0.5 | MS3PROEVOHC-A-11 | — | — | — |
| 18 | Alternator control (ALTC) | — | W52 | — | 0.5 | MS3PROEVOHC-A-5 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — |
| 21 | Evap canister purge valve (PCS) | — | W53 | — | 0.5 | MS3PROEVOHC-B-11 | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — |
| 23 | VTC oil control solenoid (-) | — | W54 | — | 0.5 | MS3PROEVOHC-B-12 | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — |
OEM-E
Mating face
Wire side
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Immobilizer fuel pump relay (IMO FPR) | — | W44 | — | 0.5 | MS3PROEVOHC-C-4 | — | — | — |
| 2 | Secondary heated O2 sensor (SHO2S) | — | W61 | — | 0.5 | MS3PROEVOHC-A-25 | — | — | — |
| 3 | Logic ground 3 (LG3) | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 4 | Sensor ground 3 (SG3) | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor 5V supply 3 (VCC3) | — | W25 | — | 0.5 | MS3PROEVOHC-C-22 | — | — | — |
| 6 | Secondary O2 heater control (SO2SHTC) | — | W47 | — | 0.5 | MS3PROEVOHC-A-30 | — | — | — |
| 7 | Main relay control (MRLY) | — | W42 | — | 0.5 | MS3PROEVOHC-A-28 | — | — | — |
| 8 | A/F sensor heater relay control (AFSHTCR) | — | W46 | — | 0.5 | MS3PROEVOHC-C-3 | — | — | — |
| 9 | Ignition switch signal (IG1) | — | W41 | — | 0.5 | MS3PROEVOHC-B-19 | — | — | — |
| 10 | — | — | — | — | — | — | — | — | — |
| 11 | — | — | — | — | — | — | — | — | — |
| 12 | — | — | — | — | — | — | — | — | — |
| 13 | — | — | — | — | — | — | — | — | — |
| 14 | Fuel tank pressure sensor (FTP) | — | W65 | — | 0.5 | MS3PROEVOHC-A-21 | — | — | — |
| 15 | Electrical load detector (ELD) | — | W66 | — | 0.5 | MS3PROEVOHC-A-22 | — | — | — |
| 16 | Power steering pressure switch (PSPSW) | — | W70 | — | 0.5 | MS3PROEVOHC-B-29 | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — |
| 18 | A/C clutch relay (ACC) | — | W45 | — | 0.5 | MS3PROEVOHC-A-29 | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — |
| 20 | Brake switch / interlock (2WBS) | — | W71 | — | 0.5 | MS3PROEVOHC-C-11 | — | — | — |
| 21 | Evap vent shut valve (VSV) | — | W56 | — | 0.5 | MS3PROEVOHC-B-4 | — | — | — |
| 22 | Brake switch (BKSW) | — | W72 | — | 0.5 | MS3PROEVOHC-C-10 | — | — | — |
| 23 | K-line (diagnostic) | — | — | — | — | — | — | — | — |
| 24 | Multiplex communication (SEFMJ) | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — |
| 26 | Engine speed pulse / tacho (NEP) | — | W58 | — | 0.5 | MS3PROEVOHC-A-24 | — | — | — |
| 27 | Immobilizer code (IMOCD) | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — |
| 29 | Service check signal (SCS) | — | — | — | — | — | — | — | — |
| 30 | Write enable signal (WEN) | — | — | — | — | — | — | — | — |
| 31 | Malfunction indicator lamp (MIL) | — | W57 | — | 0.5 | MS3PROEVOHC-B-6 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W20 | — | 0.5 | MS3PROEVOHC-C-19 | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-A-10 | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-A-11 | — | — | — |
| 1 | — | — | W15 | — | 0.5 | OEM-E-4 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | MS3PROEVOHC-A-13 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | MS3PROEVOHC-A-18 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | MS3PROEVOHC-C-17 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | MS3PROEVOHC-C-18 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | MS3PROEVOHC-C-20 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | MS3PROEVOHC-C-21 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | MS3PROEVOHC-A-15 | — | — | — |
| 1 | — | — | W29 | — | 0.5 | MS3PROEVOHC-A-27 | — | — | — |
| 1 | — | — | W31 | — | 0.5 | MS3PROEVOHC-B-35 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-A-2 | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-A-3 | — | — | — |
| 1 | — | — | W3 | — | 0.85 | MS3PROEVOHC-A-35 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W4 | — | 0.85 | OEM-A-23 | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-24 | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-4 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-5 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | OEM-E-3 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | MS3PROEVOHC-B-3 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | MS3PROEVOHC-B-5 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | MS3PROEVOHC-B-7 | — | — | — |
| 1 | — | — | W12 | — | 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 | A/F sensor heater control (AFSHTC) | low_side_out | MS3PROEVOHC-C-2 | PWM out 4 | low_side_out | single_source | |
| OEM-A-10 | Sensor ground 2 (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 | corroborated | |
| OEM-A-11 | Sensor ground 1 (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 | corroborated | |
| OEM-A-12 | Idle air control valve (IACV) | low_side_out | MS3PROEVOHC-C-1 | PWM out 5 | low_side_out | corroborated | |
| OEM-A-15 | Throttle position sensor (TPS) | analog_in | MS3PROEVOHC-A-9 | TPS in | analog_in | corroborated | |
| OEM-A-16 | A/F sensor - (AFS-, wideband Vs) | wb_vs | — | — | — | single_source | |
| OEM-A-18 | Vehicle speed sensor (VSS, M/T) | digital_in | MS3PROEVOHC-B-28 | Digital frequency in 1 (unconditioned) | digital_in | corroborated | |
| OEM-A-19 | Manifold absolute pressure (MAP) | analog_in | MS3PROEVOHC-A-19 | Analog in 1 | analog_in | corroborated | |
| OEM-A-2 | Ignition power 2 (IGP2) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | corroborated | |
| OEM-A-20 | Sensor 5V supply 2 (VCC2) | vref | MS3PROEVOHC-A-8 | 5V+ VREF out | vref | corroborated | |
| OEM-A-21 | Sensor 5V supply 1 (VCC1) | vref | MS3PROEVOHC-C-15 | 5V+ VREF out 2 | vref | corroborated | |
| OEM-A-22 | A/F sensor heater supply (AFSHTC+) | power_out | — | — | — | single_source | |
| OEM-A-23 | Logic ground 2 (LG2) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | corroborated | |
| OEM-A-24 | Logic ground 1 (LG1) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | corroborated | |
| OEM-A-25 | Camshaft position A (CMP A) | trigger_in | MS3PROEVOHC-A-26 | CMP+ | trigger_in | single_source | |
| OEM-A-26 | Camshaft position B (CMP B) | trigger_in | MS3PROEVOHC-B-34 | Digital Frequency in 1 (VR+) | digital_in | single_source | |
| OEM-A-27 | Ignition coil 4 (IGPLS4) | ignition_out | MS3PROEVOHC-B-16 | Spark out H | ignition_out | corroborated | |
| OEM-A-28 | Ignition coil 3 (IGPLS3) | ignition_out | MS3PROEVOHC-B-15 | Spark out C | ignition_out | corroborated | |
| OEM-A-29 | Ignition coil 2 (IGPLS2) | ignition_out | MS3PROEVOHC-B-14 | Spark out E | ignition_out | corroborated | |
| OEM-A-3 | Ignition power 1 (IGP1) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | corroborated | |
| OEM-A-30 | Ignition coil 1 (IGPLS1) | ignition_out | MS3PROEVOHC-B-13 | Spark out G | ignition_out | corroborated | |
| OEM-A-4 | Power ground 2 (PG2) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | corroborated | |
| OEM-A-5 | Power ground 1 (PG1) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | corroborated | |
| OEM-A-6 | A/F sensor + (AFS+, wideband Ip) | wb_ip | — | — | — | single_source | |
| OEM-A-7 | Crank position sensor (CKP) | trigger_in | MS3PROEVOHC-A-6 | CKP+ | trigger_in | corroborated | |
| OEM-A-9 | Knock sensor (KS) | knock_in | MS3PROEVOHC-A-31 | Knock in 1 | knock_in | corroborated | |
| OEM-B-1 | VTC oil control solenoid (+) | low_side_out | MS3PROEVOHC-A-2 | High current out 2 | low_side_out | corroborated | |
| OEM-B-10 | Alternator L signal (ALTL) | digital_in | MS3PROEVOHC-A-32 | Digital switched in 1 | digital_in | single_source | |
| OEM-B-13 | Alternator FR signal (ALTF) | analog_in | MS3PROEVOHC-A-20 | Analog in 2 | analog_in | single_source | |
| OEM-B-15 | VTEC solenoid (VTS) | low_side_out | MS3PROEVOHC-A-1 | High current out 1 | low_side_out | single_source | |
| OEM-B-17 | Intake air temp sensor (IAT) | temp_in | MS3PROEVOHC-A-11 | CLT in | temp_in | corroborated | |
| OEM-B-18 | Alternator control (ALTC) | low_side_out | MS3PROEVOHC-A-5 | High current out 3 | low_side_out | corroborated | |
| OEM-B-2 | Injector 4 (INJ4) | injector_out | MS3PROEVOHC-B-10 | Injector out F | injector_out | corroborated | |
| OEM-B-21 | Evap canister purge valve (PCS) | low_side_out | MS3PROEVOHC-B-11 | Injector out G | injector_out | corroborated | |
| OEM-B-23 | VTC oil control solenoid (-) | low_side_out | MS3PROEVOHC-B-12 | Injector out H | injector_out | corroborated | |
| OEM-B-3 | Injector 3 (INJ3) | injector_out | MS3PROEVOHC-B-1 | Injector out A | injector_out | corroborated | |
| OEM-B-4 | Injector 2 (INJ2) | injector_out | MS3PROEVOHC-A-4 | Injector out I | injector_out | corroborated | |
| OEM-B-5 | Injector 1 (INJ1) | injector_out | MS3PROEVOHC-A-3 | Injector out J | injector_out | corroborated | |
| OEM-B-6 | Radiator fan control (FANC) | low_side_out | MS3PROEVOHC-A-14 | PWM / Idle Out 1 | low_side_out | corroborated | |
| OEM-B-7 | Reverse lockout solenoid (RVS, Type-S) | low_side_out | MS3PROEVOHC-B-2 | Injector out B | injector_out | corroborated | |
| OEM-B-8 | Coolant temp sensor (ECT) | temp_in | MS3PROEVOHC-A-10 | MAT in | temp_in | corroborated | |
| OEM-B-9 | VTEC oil pressure switch (VTPSW) | digital_in | MS3PROEVOHC-B-20 | Digital switched in 2 | digital_in | corroborated | |
| OEM-E-1 | Immobilizer fuel pump relay (IMO FPR) | low_side_out | MS3PROEVOHC-C-4 | Digital out 1 | low_side_out | corroborated | |
| OEM-E-14 | Fuel tank pressure sensor (FTP) | analog_in | MS3PROEVOHC-A-21 | Analog in 3 | analog_in | corroborated | |
| OEM-E-15 | Electrical load detector (ELD) | analog_in | MS3PROEVOHC-A-22 | Analog In 4 | analog_in | corroborated | |
| OEM-E-16 | Power steering pressure switch (PSPSW) | digital_in | MS3PROEVOHC-B-29 | Digital switched in 3 | digital_in | corroborated | |
| OEM-E-18 | A/C clutch relay (ACC) | low_side_out | MS3PROEVOHC-A-29 | PWM out 2 | low_side_out | corroborated | |
| OEM-E-2 | Secondary heated O2 sensor (SHO2S) | lambda_nb_in | MS3PROEVOHC-A-25 | O2 in | lambda_nb_in | corroborated | |
| OEM-E-20 | Brake switch / interlock (2WBS) | digital_in | MS3PROEVOHC-C-11 | Digital switched in 4 | digital_in | single_source | |
| OEM-E-21 | Evap vent shut valve (VSV) | low_side_out | MS3PROEVOHC-B-4 | Injector out C | injector_out | corroborated | |
| OEM-E-22 | Brake switch (BKSW) | digital_in | MS3PROEVOHC-C-10 | Digital switched in 5 | digital_in | corroborated | |
| OEM-E-23 | K-line (diagnostic) | serial | — | — | — | single_source | |
| OEM-E-24 | Multiplex communication (SEFMJ) | serial | — | — | — | corroborated | |
| OEM-E-26 | Engine speed pulse / tacho (NEP) | tacho_out | MS3PROEVOHC-A-24 | Tach out | tacho_out | corroborated | |
| OEM-E-27 | Immobilizer code (IMOCD) | — | — | — | — | single_source | |
| OEM-E-29 | Service check signal (SCS) | — | — | — | — | single_source | |
| OEM-E-3 | Logic ground 3 (LG3) | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | corroborated | |
| OEM-E-30 | Write enable signal (WEN) | — | — | — | — | single_source | |
| OEM-E-31 | Malfunction indicator lamp (MIL) | low_side_out | MS3PROEVOHC-B-6 | Injector out D | injector_out | corroborated | |
| OEM-E-4 | Sensor ground 3 (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 | corroborated | |
| OEM-E-5 | Sensor 5V supply 3 (VCC3) | vref | MS3PROEVOHC-C-22 | 5V+ VREF out 1 | vref | corroborated | |
| OEM-E-6 | Secondary O2 heater control (SO2SHTC) | low_side_out | MS3PROEVOHC-A-30 | PWM out 3 | low_side_out | corroborated | |
| OEM-E-7 | Main relay control (MRLY) | low_side_out | MS3PROEVOHC-A-28 | Fuel pump relay out | low_side_out | corroborated | |
| OEM-E-8 | A/F sensor heater relay control (AFSHTCR) | low_side_out | MS3PROEVOHC-C-3 | Digital out 2 | low_side_out | corroborated | |
| OEM-E-9 | Ignition switch signal (IG1) | digital_in | MS3PROEVOHC-B-19 | Digital switched 12V in | digital_in | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-A-2 | SP-14V-1 | 0.85 | no route | Ignition power 2 (IGP2) | — | |
| W2 | OEM-A-3 | SP-14V-1 | 0.85 | no route | Ignition power 1 (IGP1) | — | |
| W3 | SP-14V-1 | MS3PROEVOHC-A-35 | 0.85 | no route | 12V+ switched power in | — | |
| W4 | OEM-A-23 | SP-GND-1 | 0.85 | no route | Logic ground 2 (LG2) | — | |
| W5 | OEM-A-24 | SP-GND-1 | 0.85 | no route | Logic ground 1 (LG1) | — | |
| W6 | OEM-A-4 | SP-GND-1 | 0.85 | no route | Power ground 2 (PG2) | — | |
| W7 | OEM-A-5 | SP-GND-1 | 0.85 | no route | Power ground 1 (PG1) | — | |
| W8 | OEM-E-3 | SP-GND-1 | 0.85 | no route | Logic ground 3 (LG3) | — | |
| W9 | SP-GND-1 | MS3PROEVOHC-B-3 | 0.85 | no route | Ground | — | |
| W10 | SP-GND-1 | MS3PROEVOHC-B-5 | 0.85 | no route | Ground | — | |
| W11 | SP-GND-1 | MS3PROEVOHC-B-7 | 0.85 | no route | Ground | — | |
| W12 | SP-GND-1 | MS3PROEVOHC-B-9 | 0.85 | no route | Ground | — | |
| W13 | OEM-A-10 | SP-0V-1 | 0.5 | no route | Sensor ground 2 (SG2) | — | |
| W14 | OEM-A-11 | SP-0V-1 | 0.5 | no route | Sensor ground 1 (SG1) | — | |
| W15 | OEM-E-4 | SP-0V-1 | 0.5 | no route | Sensor ground 3 (SG3) | — | |
| W16 | SP-0V-1 | MS3PROEVOHC-A-13 | 0.5 | no route | Logic Ground | — | |
| W17 | SP-0V-1 | MS3PROEVOHC-A-18 | 0.5 | no route | Sensor return | — | |
| W18 | SP-0V-1 | MS3PROEVOHC-C-17 | 0.5 | no route | Sensor return | — | |
| W19 | SP-0V-1 | MS3PROEVOHC-C-18 | 0.5 | no route | Sensor return | — | |
| W20 | SP-0V-1 | MS3PROEVOHC-C-19 | 0.5 | no route | Sensor return | — | |
| W21 | SP-0V-1 | MS3PROEVOHC-C-20 | 0.5 | no route | Sensor return | — | |
| W22 | SP-0V-1 | MS3PROEVOHC-C-21 | 0.5 | no route | Sensor return | — | |
| W23 | OEM-A-20 | MS3PROEVOHC-A-8 | 0.5 | no route | Sensor 5V supply 2 (VCC2) | — | |
| W24 | OEM-A-21 | MS3PROEVOHC-C-15 | 0.5 | no route | Sensor 5V supply 1 (VCC1) | — | |
| W25 | OEM-E-5 | MS3PROEVOHC-C-22 | 0.5 | no route | Sensor 5V supply 3 (VCC3) | — | |
| W26 | OEM-A-7 | MS3PROEVOHC-A-6 | 0.5 | no route | Crank position sensor (CKP) | — | |
| W27 | SP-0V-1 | MS3PROEVOHC-A-15 | 0.5 | no route | CKP− | — | |
| W28 | OEM-A-25 | MS3PROEVOHC-A-26 | 0.5 | no route | Camshaft position A (CMP A) | — | |
| W29 | SP-0V-1 | MS3PROEVOHC-A-27 | 0.5 | no route | CMP− | — | |
| W30 | OEM-A-26 | MS3PROEVOHC-B-34 | 0.5 | no route | Camshaft position B (CMP B) | — | |
| W31 | SP-0V-1 | MS3PROEVOHC-B-35 | 0.5 | no route | Digital Frequency in 1 (VR−) | — | |
| W32 | OEM-A-9 | MS3PROEVOHC-A-31 | 0.5 | no route | Knock sensor (KS) | — | |
| W33 | OEM-A-30 | MS3PROEVOHC-B-13 | 0.5 | no route | Ignition coil 1 (IGPLS1) | — | |
| W34 | OEM-A-29 | MS3PROEVOHC-B-14 | 0.5 | no route | Ignition coil 2 (IGPLS2) | — | |
| W35 | OEM-A-28 | MS3PROEVOHC-B-15 | 0.5 | no route | Ignition coil 3 (IGPLS3) | — | |
| W36 | OEM-A-27 | MS3PROEVOHC-B-16 | 0.5 | no route | Ignition coil 4 (IGPLS4) | — | |
| W37 | OEM-B-5 | MS3PROEVOHC-A-3 | 0.5 | no route | Injector 1 (INJ1) | — | |
| W38 | OEM-B-4 | MS3PROEVOHC-A-4 | 0.5 | no route | Injector 2 (INJ2) | — | |
| W39 | OEM-B-3 | MS3PROEVOHC-B-1 | 0.5 | no route | Injector 3 (INJ3) | — | |
| W40 | OEM-B-2 | MS3PROEVOHC-B-10 | 0.5 | no route | Injector 4 (INJ4) | — | |
| W41 | OEM-E-9 | MS3PROEVOHC-B-19 | 0.5 | no route | Ignition switch signal (IG1) | — | |
| W42 | OEM-E-7 | MS3PROEVOHC-A-28 | 0.5 | no route | Main relay control (MRLY) | — | |
| W43 | OEM-B-6 | MS3PROEVOHC-A-14 | 0.5 | no route | Radiator fan control (FANC) | — | |
| W44 | OEM-E-1 | MS3PROEVOHC-C-4 | 0.5 | no route | Immobilizer fuel pump relay (IMO FPR) | — | |
| W45 | OEM-E-18 | MS3PROEVOHC-A-29 | 0.5 | no route | A/C clutch relay (ACC) | — | |
| W46 | OEM-E-8 | MS3PROEVOHC-C-3 | 0.5 | no route | A/F sensor heater relay control (AFSHTCR) | — | |
| W47 | OEM-E-6 | MS3PROEVOHC-A-30 | 0.5 | no route | Secondary O2 heater control (SO2SHTC) | — | |
| W48 | OEM-A-1 | MS3PROEVOHC-C-2 | 0.5 | no route | A/F sensor heater control (AFSHTC) | — | |
| W49 | OEM-A-12 | MS3PROEVOHC-C-1 | 0.5 | no route | Idle air control valve (IACV) | — | |
| W50 | OEM-B-15 | MS3PROEVOHC-A-1 | 0.5 | no route | VTEC solenoid (VTS) | — | |
| W51 | OEM-B-1 | MS3PROEVOHC-A-2 | 0.5 | no route | VTC oil control solenoid (+) | — | |
| W52 | OEM-B-18 | MS3PROEVOHC-A-5 | 0.5 | no route | Alternator control (ALTC) | — | |
| W53 | OEM-B-21 | MS3PROEVOHC-B-11 | 0.5 | no route | Evap canister purge valve (PCS) | — | |
| W54 | OEM-B-23 | MS3PROEVOHC-B-12 | 0.5 | no route | VTC oil control solenoid (-) | — | |
| W55 | OEM-B-7 | MS3PROEVOHC-B-2 | 0.5 | no route | Reverse lockout solenoid (RVS, Type-S) | — | |
| W56 | OEM-E-21 | MS3PROEVOHC-B-4 | 0.5 | no route | Evap vent shut valve (VSV) | — | |
| W57 | OEM-E-31 | MS3PROEVOHC-B-6 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W58 | OEM-E-26 | MS3PROEVOHC-A-24 | 0.5 | no route | Engine speed pulse / tacho (NEP) | — | |
| W59 | OEM-A-19 | MS3PROEVOHC-A-19 | 0.5 | no route | Manifold absolute pressure (MAP) | — | |
| W60 | OEM-A-15 | MS3PROEVOHC-A-9 | 0.5 | no route | Throttle position sensor (TPS) | — | |
| W61 | OEM-E-2 | MS3PROEVOHC-A-25 | 0.5 | no route | Secondary heated O2 sensor (SHO2S) | — | |
| W62 | OEM-B-8 | MS3PROEVOHC-A-10 | 0.5 | no route | Coolant temp sensor (ECT) | — | |
| W63 | OEM-B-17 | MS3PROEVOHC-A-11 | 0.5 | no route | Intake air temp sensor (IAT) | — | |
| W64 | OEM-B-13 | MS3PROEVOHC-A-20 | 0.5 | no route | Alternator FR signal (ALTF) | — | |
| W65 | OEM-E-14 | MS3PROEVOHC-A-21 | 0.5 | no route | Fuel tank pressure sensor (FTP) | — | |
| W66 | OEM-E-15 | MS3PROEVOHC-A-22 | 0.5 | no route | Electrical load detector (ELD) | — | |
| W67 | OEM-A-18 | MS3PROEVOHC-B-28 | 0.5 | no route | Vehicle speed sensor (VSS, M/T) | — | |
| W68 | OEM-B-10 | MS3PROEVOHC-A-32 | 0.5 | no route | Alternator L signal (ALTL) | — | |
| W69 | OEM-B-9 | MS3PROEVOHC-B-20 | 0.5 | no route | VTEC oil pressure switch (VTPSW) | — | |
| W70 | OEM-E-16 | MS3PROEVOHC-B-29 | 0.5 | no route | Power steering pressure switch (PSPSW) | — | |
| W71 | OEM-E-20 | MS3PROEVOHC-C-11 | 0.5 | no route | Brake switch / interlock (2WBS) | — | |
| W72 | OEM-E-22 | MS3PROEVOHC-C-10 | 0.5 | no route | Brake switch (BKSW) | — |
Bill of materials
| Category | Part number | Manufacturer | Description | Qty | Unit |
|---|---|---|---|---|---|
| connector | 1318682-6 | TE | K-series ECU harness plug A (040-3 HD plug assy, 31P) | 1.000 | ea |
| connector | 353029-1 | TE | K-series ECU harness plug B (040 H/D-3 plug HSG assy, 24P) | 1.000 | ea |
| connector | 353826-1 | TE | K-series ECU harness plug E (040 HD 31P plug HSG assy-B, 31P) | 1.000 | ea |
| terminal | 316836-1 | TE | Multilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²) | 57.000 | ea |
ECU setup sheet
| Role | Engine ref | Engine signal | Sensor | ECU point | ECU function | ECU class | Setup flag |
|---|---|---|---|---|---|---|---|
| No configured channels. | |||||||
Findings
Open (13)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | DATASET_GAP | RSX ECU A | 5 of 31 cavities on RSX ECU A have no pin data (8,13,14,17,31). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU B | 8 of 24 cavities on RSX ECU B have no pin data (11,12,14,16,19,20,22,24). Anything there is invisible to these checks. |
| warn | DATASET_GAP | RSX ECU E | 8 of 31 cavities on RSX ECU E have no pin data (10,11,12,13,17,19,25,28). Anything there is invisible to these checks. |
| 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-A-26 ↔ MS3PROEVOHC-B-34 | OEM-A-26 "Camshaft position B (CMP B)" [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-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-11 ↔ MS3PROEVOHC-A-15 | OEM-A-11 "Sensor ground 1 (SG1)" [sensor_ground] is wired to MS3PROEVOHC-A-15 "CKP−" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-B-21 ↔ MS3PROEVOHC-B-11 | OEM-B-21 "Evap canister purge valve (PCS)" [low_side_out] is wired to MS3PROEVOHC-B-11 "Injector out G" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-23 ↔ MS3PROEVOHC-B-12 | OEM-B-23 "VTC oil control solenoid (-)" [low_side_out] is wired to MS3PROEVOHC-B-12 "Injector out H" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-B-7 ↔ MS3PROEVOHC-B-2 | OEM-B-7 "Reverse lockout solenoid (RVS, Type-S)" [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-E-21 ↔ MS3PROEVOHC-B-4 | OEM-E-21 "Evap 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-E-31 ↔ MS3PROEVOHC-B-6 | OEM-E-31 "Malfunction indicator lamp (MIL)" [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 | UNMAPPED | OEM | 8 optional OEM pins are not mapped: OEM-A-16 A/F sensor - (AFS-, wideband Vs); OEM-A-22 A/F sensor heater supply (AFSHTC+); OEM-A-6 A/F sensor + (AFS+, wideband Ip); OEM-E-23 K-line (diagnostic); OEM-E-24 Multiplex communication (SEFMJ); OEM-E-27 Immobilizer code (IMOCD); OEM-E-29 Service check signal (SCS); OEM-E-30 Write enable signal (WEN) |
Accepted (0)
| Code | Subject | Reason | By |
|---|
Notes
Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-A 6: A/F sensor + (AFS+, wideband Ip): no free wb_ip on AMP EFI MS3Pro EVO+ HC - OEM-A 16: A/F sensor - (AFS-, wideband Vs): no free wb_vs on AMP EFI MS3Pro EVO+ HC - OEM-A 22: A/F sensor heater supply (AFSHTC+): no free heater_feed on AMP EFI MS3Pro EVO+ HC - OEM-E 23: K-line (diagnostic): no free k_line on AMP EFI MS3Pro EVO+ HC - OEM-E 24: Multiplex communication (SEFMJ): no free k_line on AMP EFI MS3Pro EVO+ HC - OEM-E 27: Immobilizer code (IMOCD): not classified in the library; wire by hand - OEM-E 29: Service check signal (SCS): not classified in the library; wire by hand - OEM-E 30: Write enable signal (WEN): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 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 |
| 4 | vendor_doc | Link: CIVICLink K20X (HC20X) DC5 installation manual | https://linkecu.com/documentation/237-4000%20DC5.pdf | archive | 2026-10-05 | 8a1a71301571 |
| 3 | forum | FFS TechNet: K-series 02-06 RSX ECU pin diagram (Helm) | https://ff-squad.com/technet2/k-series-02-06-rsx-ecu-pin-diagram/ | archive | 2026-10-05 | b2b85002666e |