Mazda RX-7 FD 1992-2002 (13B-REW twin-turbo) → AMP EFI MS3Pro EVO+ HC (auto)
Mazda RX-7 FD 1992-2002 (13B-REW twin-turbo) — AMP EFI — MS3Pro EVO+ HC
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11
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 | none |
| Size of the job | 67 wires · 9 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-D-4A | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-D-4E | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | SP-14V-1 | MS3PROEVOHC-A-35 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-A-1AF | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-1AJ | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-1L | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-GND-1 | MS3PROEVOHC-B-3 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | MS3PROEVOHC-B-5 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | MS3PROEVOHC-B-7 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | MS3PROEVOHC-B-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | OEM-A-1AB | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-A-1X | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-C-3AB | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-C-3S | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | MS3PROEVOHC-A-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | MS3PROEVOHC-A-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | MS3PROEVOHC-C-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | MS3PROEVOHC-C-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | MS3PROEVOHC-C-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | MS3PROEVOHC-C-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | MS3PROEVOHC-C-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-C-3A | MS3PROEVOHC-A-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-C-3R | MS3PROEVOHC-A-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | SP-0V-1 | MS3PROEVOHC-A-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-C-3U | MS3PROEVOHC-A-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | SP-0V-1 | MS3PROEVOHC-A-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-C-3O | MS3PROEVOHC-A-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-D-4AF | MS3PROEVOHC-B-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-D-4AJ | MS3PROEVOHC-B-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-D-4AN | MS3PROEVOHC-B-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-1Q | MS3PROEVOHC-A-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-1U | MS3PROEVOHC-A-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-A-1Y | MS3PROEVOHC-B-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-A-1AC | MS3PROEVOHC-B-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-D-4C | MS3PROEVOHC-B-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-A-1AA | MS3PROEVOHC-B-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-A-1AE | MS3PROEVOHC-B-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-A-1S | MS3PROEVOHC-B-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-1W | MS3PROEVOHC-B-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-1H | MS3PROEVOHC-A-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-D-4D | MS3PROEVOHC-A-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-D-4F | MS3PROEVOHC-C-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-D-4G | MS3PROEVOHC-A-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-D-4I | MS3PROEVOHC-C-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-D-4K | MS3PROEVOHC-A-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-D-4L | MS3PROEVOHC-A-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-A-1C | MS3PROEVOHC-C-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-A-1E | MS3PROEVOHC-C-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-A-1G | MS3PROEVOHC-A-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-A-1I | MS3PROEVOHC-A-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-A-1K | MS3PROEVOHC-B-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-A-1M | MS3PROEVOHC-B-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-A-1O | MS3PROEVOHC-B-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-C-3G | MS3PROEVOHC-B-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-D-4M | MS3PROEVOHC-A-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-D-4AH | MS3PROEVOHC-A-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-C-3I | MS3PROEVOHC-A-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-C-3D | MS3PROEVOHC-A-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-C-3W | MS3PROEVOHC-A-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-C-3T | MS3PROEVOHC-A-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-C-3V | MS3PROEVOHC-A-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-C-3H | MS3PROEVOHC-A-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W63 | OEM-D-4Q | MS3PROEVOHC-B-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W64 | OEM-D-4AA | MS3PROEVOHC-A-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W65 | OEM-D-4S | MS3PROEVOHC-B-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W66 | OEM-D-4V | MS3PROEVOHC-B-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W67 | OEM-D-4W | MS3PROEVOHC-C-11 | 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-13 | MS3PROEVOHC-A-35 | open (OL) | sensor ground must not touch +12 V supply | |
| 2 | MS3PROEVOHC-A-13 | MS3PROEVOHC-A-8 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | MS3PROEVOHC-A-8 | MS3PROEVOHC-A-35 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 4 | MS3PROEVOHC-B-3 | MS3PROEVOHC-A-35 | open (OL) | power ground must not touch +12 V supply | |
| 5 | MS3PROEVOHC-B-3 | MS3PROEVOHC-A-8 | 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 | — | W46 | — | 0.5 | OEM-D-4L | — | — | — |
| 10 | MAT in | — | W59 | — | 0.5 | OEM-C-3W | — | — | — |
| 11 | CLT in | — | W60 | — | 0.5 | OEM-C-3T | — | — | — |
| 12 | Analog In 6 | — | — | — | — | — | — | — | — |
| 13 | Logic Ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | PWM / Idle Out 1 | — | W41 | — | 0.5 | OEM-D-4D | — | — | — |
| 15 | CKP− | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 16 | Ground Shield Drain | — | — | — | — | — | — | — | — |
| 17 | Analog In 7 | — | — | — | — | — | — | — | — |
| 18 | Sensor return | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Analog in 1 | — | W56 | — | 0.5 | OEM-D-4AH | — | — | — |
| 2 | High current out 2 | — | W49 | — | 0.5 | OEM-A-1G | — | — | — |
| 20 | Analog in 2 | — | W61 | — | 0.5 | OEM-C-3V | — | — | — |
| 21 | Analog in 3 | — | W62 | — | 0.5 | OEM-C-3H | — | — | — |
| 22 | Analog In 4 | — | — | — | — | — | — | — | — |
| 23 | Analog In 5 | — | — | — | — | — | — | — | — |
| 24 | Tach out | — | W55 | — | 0.5 | OEM-D-4M | — | — | — |
| 25 | O2 in | — | W58 | — | 0.5 | OEM-C-3D | — | — | — |
| 26 | CMP+ | — | W25 | — | 0.5 | OEM-C-3U | — | — | — |
| 27 | CMP− | — | W26 | — | 0.5 | SP-0V-1 | — | — | — |
| 28 | Fuel pump relay out | — | W40 | — | 0.5 | OEM-A-1H | — | — | — |
| 29 | PWM out 2 | — | W43 | — | 0.5 | OEM-D-4G | — | — | — |
| 3 | Injector out J | — | W31 | — | 0.5 | OEM-A-1Q | — | — | — |
| 30 | PWM out 3 | — | W45 | — | 0.5 | OEM-D-4K | — | — | — |
| 31 | Knock in 1 | — | W27 | — | 0.5 | OEM-C-3O | — | — | — |
| 32 | Digital switched in 1 | — | W64 | — | 0.5 | OEM-D-4AA | — | — | — |
| 33 | CAN L | — | — | — | — | — | — | — | — |
| 34 | CAN H | — | — | — | — | — | — | — | — |
| 35 | 12V+ switched power in | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 4 | Injector out I | — | W32 | — | 0.5 | OEM-A-1U | — | — | — |
| 5 | High current out 3 | — | W50 | — | 0.5 | OEM-A-1I | — | — | — |
| 6 | CKP+ | — | W23 | — | 0.5 | OEM-C-3R | — | — | — |
| 7 | Knock In 2 | — | — | — | — | — | — | — | — |
| 8 | 5V+ VREF out | — | W22 | — | 0.5 | OEM-C-3A | — | — | — |
| 9 | TPS in | — | W57 | — | 0.5 | OEM-C-3I | — | — | — |
MS3PROEVOHC-B
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Injector out A | — | W33 | — | 0.5 | OEM-A-1Y | — | — | — |
| 10 | Injector out F | — | W34 | — | 0.5 | OEM-A-1AC | — | — | — |
| 11 | Injector out G | — | W51 | — | 0.5 | OEM-A-1K | — | — | — |
| 12 | Injector out H | — | W52 | — | 0.5 | OEM-A-1M | — | — | — |
| 13 | Spark out G | — | W28 | — | 0.5 | OEM-D-4AF | — | — | — |
| 14 | Spark out E | — | W29 | — | 0.5 | OEM-D-4AJ | — | — | — |
| 15 | Spark out C | — | W30 | — | 0.5 | OEM-D-4AN | — | — | — |
| 16 | Spark out H | — | — | — | — | — | — | — | — |
| 17 | Digital frequency in 2 (Hall) | — | — | — | — | — | — | — | — |
| 18 | Ground Shield Drain | — | — | — | — | — | — | — | — |
| 19 | Digital switched 12V in | — | W35 | — | 0.5 | OEM-D-4C | — | — | — |
| 2 | Injector out B | — | W53 | — | 0.5 | OEM-A-1O | — | — | — |
| 20 | Digital switched in 2 | — | W65 | — | 0.5 | OEM-D-4S | — | — | — |
| 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) | — | W63 | — | 0.5 | OEM-D-4Q | — | — | — |
| 29 | Digital switched in 3 | — | W66 | — | 0.5 | OEM-D-4V | — | — | — |
| 3 | Ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 30 | Stepper IAC out 1B | — | W36 | — | 0.5 | OEM-A-1AA | — | — | — |
| 31 | Stepper IAC out 1A | — | W37 | — | 0.5 | OEM-A-1AE | — | — | — |
| 32 | Stepper IAC out 2A | — | W38 | — | 0.5 | OEM-A-1S | — | — | — |
| 33 | Stepper IAC out 2B | — | W39 | — | 0.5 | OEM-A-1W | — | — | — |
| 34 | Digital Frequency in 1 (VR+) | — | — | — | — | — | — | — | — |
| 35 | Digital Frequency in 1 (VR−) | — | — | — | — | — | — | — | — |
| 4 | Injector out C | — | W54 | — | 0.5 | OEM-C-3G | — | — | — |
| 5 | Ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 6 | Injector out D | — | — | — | — | — | — | — | — |
| 7 | Ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 8 | Injector out E | — | — | — | — | — | — | — | — |
| 9 | Ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
MS3PROEVOHC-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PWM out 5 | — | W48 | — | 0.5 | OEM-A-1E | — | — | — |
| 10 | Digital switched in 5 | — | — | — | — | — | — | — | — |
| 11 | Digital switched in 4 | — | W67 | — | 0.5 | OEM-D-4W | — | — | — |
| 12 | Digital I/O 5 | — | — | — | — | — | — | — | — |
| 13 | Digital I/O 3 | — | — | — | — | — | — | — | — |
| 14 | Digital I/O 1 | — | — | — | — | — | — | — | — |
| 15 | 5V+ VREF out 2 | — | — | — | — | — | — | — | — |
| 17 | Sensor return | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 18 | Sensor return | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 19 | Sensor return | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 2 | PWM out 4 | — | W47 | — | 0.5 | OEM-A-1C | — | — | — |
| 20 | Sensor return | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 21 | Sensor return | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 22 | 5V+ VREF out 1 | — | — | — | — | — | — | — | — |
| 3 | Digital out 2 | — | W44 | — | 0.5 | OEM-D-4I | — | — | — |
| 4 | Digital out 1 | — | W42 | — | 0.5 | OEM-D-4F | — | — | — |
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| 1AA | OMP stepper phase B1 | — | W36 | — | 0.5 | MS3PROEVOHC-B-30 | — | — | — |
| 1AB | Sensor ground | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 1AC | Injector 4 (rear secondary) | — | W34 | — | 0.5 | MS3PROEVOHC-B-10 | — | — | — |
| 1AE | OMP stepper phase A1 | — | W37 | — | 0.5 | MS3PROEVOHC-B-31 | — | — | — |
| 1AF | Power ground | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| 1AJ | Power ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 1C | Idle speed control (ISC) solenoid | — | W47 | — | 0.5 | MS3PROEVOHC-C-2 | — | — | — |
| 1E | Turbo charge control solenoid | — | W48 | — | 0.5 | MS3PROEVOHC-C-1 | — | — | — |
| 1G | Purge solenoid | — | W49 | — | 0.5 | MS3PROEVOHC-A-2 | — | — | — |
| 1H | Cooling fan relay (low speed) | — | W40 | — | 0.5 | MS3PROEVOHC-A-28 | — | — | — |
| 1I | Turbo charge relief solenoid | — | W50 | — | 0.5 | MS3PROEVOHC-A-5 | — | — | — |
| 1K | Turbo pre-control solenoid | — | W51 | — | 0.5 | MS3PROEVOHC-B-11 | — | — | — |
| 1L | Power ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 1M | Turbo control solenoid | — | W52 | — | 0.5 | MS3PROEVOHC-B-12 | — | — | — |
| 1O | Boost control solenoid | — | W53 | — | 0.5 | MS3PROEVOHC-B-2 | — | — | — |
| 1Q | Injector 1 (front primary) | — | W31 | — | 0.5 | MS3PROEVOHC-A-3 | — | — | — |
| 1S | OMP stepper phase B2 | — | W38 | — | 0.5 | MS3PROEVOHC-B-32 | — | — | — |
| 1U | Injector 2 (rear primary) | — | W32 | — | 0.5 | MS3PROEVOHC-A-4 | — | — | — |
| 1W | OMP stepper phase A2 | — | W39 | — | 0.5 | MS3PROEVOHC-B-33 | — | — | — |
| 1X | Sensor ground | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 1Y | Injector 3 (front secondary) | — | W33 | — | 0.5 | MS3PROEVOHC-B-1 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 3A | +5V sensor supply | — | W22 | — | 0.5 | MS3PROEVOHC-A-8 | — | — | — |
| 3AB | Sensor ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 3D | O2 sensor (narrowband) | — | W58 | — | 0.5 | MS3PROEVOHC-A-25 | — | — | — |
| 3G | Fuel pressure regulator control (PRC) solenoid | — | W54 | — | 0.5 | MS3PROEVOHC-B-4 | — | — | — |
| 3H | OMP position sensor | — | W62 | — | 0.5 | MS3PROEVOHC-A-21 | — | — | — |
| 3I | Throttle position (TPS, full range) | — | W57 | — | 0.5 | MS3PROEVOHC-A-9 | — | — | — |
| 3O | Knock sensor | — | W27 | — | 0.5 | MS3PROEVOHC-A-31 | — | — | — |
| 3R | Crank position (CAS NE) | — | W23 | — | 0.5 | MS3PROEVOHC-A-6 | — | — | — |
| 3S | Sensor ground (CAS) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 3T | Intake air temperature (IAT) | — | W60 | — | 0.5 | MS3PROEVOHC-A-11 | — | — | — |
| 3U | Home position (CAS G) | — | W25 | — | 0.5 | MS3PROEVOHC-A-26 | — | — | — |
| 3V | Fuel temperature | — | W61 | — | 0.5 | MS3PROEVOHC-A-20 | — | — | — |
| 3W | Coolant temperature (ECT) | — | W59 | — | 0.5 | MS3PROEVOHC-A-10 | — | — | — |
OEM-D
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 4A | ECU main power (+12V via main relay/ECR) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| 4AA | Brake pedal switch | — | W64 | — | 0.5 | MS3PROEVOHC-A-32 | — | — | — |
| 4AF | Ignition front trailing | — | W28 | — | 0.5 | MS3PROEVOHC-B-13 | — | — | — |
| 4AH | MAP sensor (PIM) | — | W56 | — | 0.5 | MS3PROEVOHC-A-19 | — | — | — |
| 4AJ | Ignition rear trailing | — | W29 | — | 0.5 | MS3PROEVOHC-B-14 | — | — | — |
| 4AN | Ignition leading (wasted spark) | — | W30 | — | 0.5 | MS3PROEVOHC-B-15 | — | — | — |
| 4B | Battery constant (+12V) | — | — | — | — | — | — | — | — |
| 4C | Ignition switch / start signal | — | W35 | — | 0.5 | MS3PROEVOHC-B-19 | — | — | — |
| 4D | Air pump clutch relay | — | W41 | — | 0.5 | MS3PROEVOHC-A-14 | — | — | — |
| 4E | ECU main power (+12V via main relay/ECR) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4F | Fuel pump speed relay | — | W42 | — | 0.5 | MS3PROEVOHC-C-4 | — | — | — |
| 4G | Fuel pump relay | — | W43 | — | 0.5 | MS3PROEVOHC-A-29 | — | — | — |
| 4I | A/C relay | — | W44 | — | 0.5 | MS3PROEVOHC-C-3 | — | — | — |
| 4K | Cooling fan relay (low speed) | — | W45 | — | 0.5 | MS3PROEVOHC-A-30 | — | — | — |
| 4L | Cooling fan relay (high speed) | — | W46 | — | 0.5 | MS3PROEVOHC-A-1 | — | — | — |
| 4M | Tachometer output | — | W55 | — | 0.5 | MS3PROEVOHC-A-24 | — | — | — |
| 4Q | Vehicle speed sensor | — | W63 | — | 0.5 | MS3PROEVOHC-B-28 | — | — | — |
| 4S | Clutch switch | — | W65 | — | 0.5 | MS3PROEVOHC-B-20 | — | — | — |
| 4V | A/C request | — | W66 | — | 0.5 | MS3PROEVOHC-B-29 | — | — | — |
| 4W | Power steering pressure switch | — | W67 | — | 0.5 | MS3PROEVOHC-C-11 | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-A-1AB | — | — | — |
| 1 | — | — | W12 | — | 0.5 | OEM-A-1X | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-C-3AB | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-C-3S | — | — | — |
| 1 | — | — | W15 | — | 0.5 | MS3PROEVOHC-A-13 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | MS3PROEVOHC-A-18 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | MS3PROEVOHC-C-17 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | MS3PROEVOHC-C-18 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | MS3PROEVOHC-C-19 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | MS3PROEVOHC-C-20 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | MS3PROEVOHC-C-21 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | MS3PROEVOHC-A-15 | — | — | — |
| 1 | — | — | W26 | — | 0.5 | MS3PROEVOHC-A-27 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-D-4A | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-D-4E | — | — | — |
| 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-1AF | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-A-1AJ | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-1L | — | — | — |
| 1 | — | — | W7 | — | 0.85 | MS3PROEVOHC-B-3 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | MS3PROEVOHC-B-5 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | MS3PROEVOHC-B-7 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | MS3PROEVOHC-B-9 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-A-1AA | OMP stepper phase B1 | hbridge_out | MS3PROEVOHC-B-30 | Stepper IAC out 1B | hbridge_out | single_source | |
| OEM-A-1AB | Sensor ground | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | sensor_ground + trigger_in | single_source | |
| OEM-A-1AC | Injector 4 (rear secondary) | injector_out | MS3PROEVOHC-B-10 | Injector out F | injector_out | single_source | |
| OEM-A-1AE | OMP stepper phase A1 | hbridge_out | MS3PROEVOHC-B-31 | Stepper IAC out 1A | hbridge_out | single_source | |
| OEM-A-1AF | Power ground | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-A-1AJ | Power ground | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-A-1C | Idle speed control (ISC) solenoid | low_side_out | MS3PROEVOHC-C-2 | PWM out 4 | low_side_out | single_source | |
| OEM-A-1E | Turbo charge control solenoid | low_side_out | MS3PROEVOHC-C-1 | PWM out 5 | low_side_out | single_source | |
| OEM-A-1G | Purge solenoid | low_side_out | MS3PROEVOHC-A-2 | High current out 2 | low_side_out | single_source | |
| OEM-A-1H | Cooling fan relay (low speed) | low_side_out | MS3PROEVOHC-A-28 | Fuel pump relay out | low_side_out | single_source | |
| OEM-A-1I | Turbo charge relief solenoid | low_side_out | MS3PROEVOHC-A-5 | High current out 3 | low_side_out | single_source | |
| OEM-A-1K | Turbo pre-control solenoid | low_side_out | MS3PROEVOHC-B-11 | Injector out G | injector_out | single_source | |
| OEM-A-1L | Power ground | ground | MS3PROEVOHC-B-3 + MS3PROEVOHC-B-5 + MS3PROEVOHC-B-7 + MS3PROEVOHC-B-9 | Ground + Ground + Ground + Ground | ground | single_source | |
| OEM-A-1M | Turbo control solenoid | low_side_out | MS3PROEVOHC-B-12 | Injector out H | injector_out | single_source | |
| OEM-A-1O | Boost control solenoid | low_side_out | MS3PROEVOHC-B-2 | Injector out B | injector_out | single_source | |
| OEM-A-1Q | Injector 1 (front primary) | injector_out | MS3PROEVOHC-A-3 | Injector out J | injector_out | single_source | |
| OEM-A-1S | OMP stepper phase B2 | hbridge_out | MS3PROEVOHC-B-32 | Stepper IAC out 2A | hbridge_out | single_source | |
| OEM-A-1U | Injector 2 (rear primary) | injector_out | MS3PROEVOHC-A-4 | Injector out I | injector_out | single_source | |
| OEM-A-1W | OMP stepper phase A2 | hbridge_out | MS3PROEVOHC-B-33 | Stepper IAC out 2B | hbridge_out | single_source | |
| OEM-A-1X | Sensor ground | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | sensor_ground + trigger_in | single_source | |
| OEM-A-1Y | Injector 3 (front secondary) | injector_out | MS3PROEVOHC-B-1 | Injector out A | injector_out | single_source | |
| OEM-C-3A | +5V sensor supply | vref | MS3PROEVOHC-A-8 | 5V+ VREF out | vref | single_source | |
| OEM-C-3AB | Sensor ground | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | sensor_ground + trigger_in | single_source | |
| OEM-C-3D | O2 sensor (narrowband) | lambda_nb_in | MS3PROEVOHC-A-25 | O2 in | lambda_nb_in | single_source | |
| OEM-C-3G | Fuel pressure regulator control (PRC) solenoid | low_side_out | MS3PROEVOHC-B-4 | Injector out C | injector_out | single_source | |
| OEM-C-3H | OMP position sensor | analog_in | MS3PROEVOHC-A-21 | Analog in 3 | analog_in | single_source | |
| OEM-C-3I | Throttle position (TPS, full range) | analog_in | MS3PROEVOHC-A-9 | TPS in | analog_in | single_source | |
| OEM-C-3O | Knock sensor | knock_in | MS3PROEVOHC-A-31 | Knock in 1 | knock_in | single_source | |
| OEM-C-3R | Crank position (CAS NE) | trigger_in | MS3PROEVOHC-A-6 | CKP+ | trigger_in | single_source | |
| OEM-C-3S | Sensor ground (CAS) | sensor_ground | MS3PROEVOHC-A-13 + MS3PROEVOHC-A-15 + MS3PROEVOHC-A-18 + MS3PROEVOHC-A-27 + MS3PROEVOHC-C-17 + MS3PROEVOHC-C-18 + MS3PROEVOHC-C-19 + MS3PROEVOHC-C-20 + MS3PROEVOHC-C-21 | Logic Ground + CKP− + Sensor return + CMP− + Sensor return + Sensor return + Sensor return + Sensor return + Sensor return | sensor_ground + trigger_in | single_source | |
| OEM-C-3T | Intake air temperature (IAT) | temp_in | MS3PROEVOHC-A-11 | CLT in | temp_in | single_source | |
| OEM-C-3U | Home position (CAS G) | trigger_in | MS3PROEVOHC-A-26 | CMP+ | trigger_in | single_source | |
| OEM-C-3V | Fuel temperature | temp_in | MS3PROEVOHC-A-20 | Analog in 2 | analog_in | single_source | |
| OEM-C-3W | Coolant temperature (ECT) | temp_in | MS3PROEVOHC-A-10 | MAT in | temp_in | single_source | |
| OEM-D-4A | ECU main power (+12V via main relay/ECR) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-D-4AA | Brake pedal switch | digital_in | MS3PROEVOHC-A-32 | Digital switched in 1 | digital_in | single_source | |
| OEM-D-4AF | Ignition front trailing | ignition_out | MS3PROEVOHC-B-13 | Spark out G | ignition_out | single_source | |
| OEM-D-4AH | MAP sensor (PIM) | analog_in | MS3PROEVOHC-A-19 | Analog in 1 | analog_in | single_source | |
| OEM-D-4AJ | Ignition rear trailing | ignition_out | MS3PROEVOHC-B-14 | Spark out E | ignition_out | single_source | |
| OEM-D-4AN | Ignition leading (wasted spark) | ignition_out | MS3PROEVOHC-B-15 | Spark out C | ignition_out | single_source | |
| OEM-D-4B | Battery constant (+12V) | power_in | — | — | — | single_source | |
| OEM-D-4C | Ignition switch / start signal | digital_in | MS3PROEVOHC-B-19 | Digital switched 12V in | digital_in | single_source | |
| OEM-D-4D | Air pump clutch relay | low_side_out | MS3PROEVOHC-A-14 | PWM / Idle Out 1 | low_side_out | single_source | |
| OEM-D-4E | ECU main power (+12V via main relay/ECR) | power_in | MS3PROEVOHC-A-35 | 12V+ switched power in | power_in | single_source | |
| OEM-D-4F | Fuel pump speed relay | low_side_out | MS3PROEVOHC-C-4 | Digital out 1 | low_side_out | single_source | |
| OEM-D-4G | Fuel pump relay | low_side_out | MS3PROEVOHC-A-29 | PWM out 2 | low_side_out | single_source | |
| OEM-D-4I | A/C relay | low_side_out | MS3PROEVOHC-C-3 | Digital out 2 | low_side_out | single_source | |
| OEM-D-4K | Cooling fan relay (low speed) | low_side_out | MS3PROEVOHC-A-30 | PWM out 3 | low_side_out | single_source | |
| OEM-D-4L | Cooling fan relay (high speed) | low_side_out | MS3PROEVOHC-A-1 | High current out 1 | low_side_out | single_source | |
| OEM-D-4M | Tachometer output | tacho_out | MS3PROEVOHC-A-24 | Tach out | tacho_out | single_source | |
| OEM-D-4Q | Vehicle speed sensor | digital_in | MS3PROEVOHC-B-28 | Digital frequency in 1 (unconditioned) | digital_in | single_source | |
| OEM-D-4S | Clutch switch | digital_in | MS3PROEVOHC-B-20 | Digital switched in 2 | digital_in | single_source | |
| OEM-D-4V | A/C request | digital_in | MS3PROEVOHC-B-29 | Digital switched in 3 | digital_in | single_source | |
| OEM-D-4W | Power steering pressure switch | digital_in | MS3PROEVOHC-C-11 | Digital switched in 4 | digital_in | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-D-4A | SP-14V-1 | 0.85 | no route | ECU main power (+12V via main relay/ECR) | — | |
| W2 | OEM-D-4E | SP-14V-1 | 0.85 | no route | ECU main power (+12V via main relay/ECR) | — | |
| W3 | SP-14V-1 | MS3PROEVOHC-A-35 | 0.85 | no route | 12V+ switched power in | — | |
| W4 | OEM-A-1AF | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W5 | OEM-A-1AJ | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W6 | OEM-A-1L | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W7 | SP-GND-1 | MS3PROEVOHC-B-3 | 0.85 | no route | Ground | — | |
| W8 | SP-GND-1 | MS3PROEVOHC-B-5 | 0.85 | no route | Ground | — | |
| W9 | SP-GND-1 | MS3PROEVOHC-B-7 | 0.85 | no route | Ground | — | |
| W10 | SP-GND-1 | MS3PROEVOHC-B-9 | 0.85 | no route | Ground | — | |
| W11 | OEM-A-1AB | SP-0V-1 | 0.5 | no route | Sensor ground | — | |
| W12 | OEM-A-1X | SP-0V-1 | 0.5 | no route | Sensor ground | — | |
| W13 | OEM-C-3AB | SP-0V-1 | 0.5 | no route | Sensor ground | — | |
| W14 | OEM-C-3S | SP-0V-1 | 0.5 | no route | Sensor ground (CAS) | — | |
| W15 | SP-0V-1 | MS3PROEVOHC-A-13 | 0.5 | no route | Logic Ground | — | |
| W16 | SP-0V-1 | MS3PROEVOHC-A-18 | 0.5 | no route | Sensor return | — | |
| W17 | SP-0V-1 | MS3PROEVOHC-C-17 | 0.5 | no route | Sensor return | — | |
| W18 | SP-0V-1 | MS3PROEVOHC-C-18 | 0.5 | no route | Sensor return | — | |
| W19 | SP-0V-1 | MS3PROEVOHC-C-19 | 0.5 | no route | Sensor return | — | |
| W20 | SP-0V-1 | MS3PROEVOHC-C-20 | 0.5 | no route | Sensor return | — | |
| W21 | SP-0V-1 | MS3PROEVOHC-C-21 | 0.5 | no route | Sensor return | — | |
| W22 | OEM-C-3A | MS3PROEVOHC-A-8 | 0.5 | no route | +5V sensor supply | — | |
| W23 | OEM-C-3R | MS3PROEVOHC-A-6 | 0.5 | no route | Crank position (CAS NE) | — | |
| W24 | SP-0V-1 | MS3PROEVOHC-A-15 | 0.5 | no route | CKP− | — | |
| W25 | OEM-C-3U | MS3PROEVOHC-A-26 | 0.5 | no route | Home position (CAS G) | — | |
| W26 | SP-0V-1 | MS3PROEVOHC-A-27 | 0.5 | no route | CMP− | — | |
| W27 | OEM-C-3O | MS3PROEVOHC-A-31 | 0.5 | no route | Knock sensor | — | |
| W28 | OEM-D-4AF | MS3PROEVOHC-B-13 | 0.5 | no route | Ignition front trailing | — | |
| W29 | OEM-D-4AJ | MS3PROEVOHC-B-14 | 0.5 | no route | Ignition rear trailing | — | |
| W30 | OEM-D-4AN | MS3PROEVOHC-B-15 | 0.5 | no route | Ignition leading (wasted spark) | — | |
| W31 | OEM-A-1Q | MS3PROEVOHC-A-3 | 0.5 | no route | Injector 1 (front primary) | — | |
| W32 | OEM-A-1U | MS3PROEVOHC-A-4 | 0.5 | no route | Injector 2 (rear primary) | — | |
| W33 | OEM-A-1Y | MS3PROEVOHC-B-1 | 0.5 | no route | Injector 3 (front secondary) | — | |
| W34 | OEM-A-1AC | MS3PROEVOHC-B-10 | 0.5 | no route | Injector 4 (rear secondary) | — | |
| W35 | OEM-D-4C | MS3PROEVOHC-B-19 | 0.5 | no route | Ignition switch / start signal | — | |
| W36 | OEM-A-1AA | MS3PROEVOHC-B-30 | 0.5 | no route | OMP stepper phase B1 | — | |
| W37 | OEM-A-1AE | MS3PROEVOHC-B-31 | 0.5 | no route | OMP stepper phase A1 | — | |
| W38 | OEM-A-1S | MS3PROEVOHC-B-32 | 0.5 | no route | OMP stepper phase B2 | — | |
| W39 | OEM-A-1W | MS3PROEVOHC-B-33 | 0.5 | no route | OMP stepper phase A2 | — | |
| W40 | OEM-A-1H | MS3PROEVOHC-A-28 | 0.5 | no route | Cooling fan relay (low speed) | — | |
| W41 | OEM-D-4D | MS3PROEVOHC-A-14 | 0.5 | no route | Air pump clutch relay | — | |
| W42 | OEM-D-4F | MS3PROEVOHC-C-4 | 0.5 | no route | Fuel pump speed relay | — | |
| W43 | OEM-D-4G | MS3PROEVOHC-A-29 | 0.5 | no route | Fuel pump relay | — | |
| W44 | OEM-D-4I | MS3PROEVOHC-C-3 | 0.5 | no route | A/C relay | — | |
| W45 | OEM-D-4K | MS3PROEVOHC-A-30 | 0.5 | no route | Cooling fan relay (low speed) | — | |
| W46 | OEM-D-4L | MS3PROEVOHC-A-1 | 0.5 | no route | Cooling fan relay (high speed) | — | |
| W47 | OEM-A-1C | MS3PROEVOHC-C-2 | 0.5 | no route | Idle speed control (ISC) solenoid | — | |
| W48 | OEM-A-1E | MS3PROEVOHC-C-1 | 0.5 | no route | Turbo charge control solenoid | — | |
| W49 | OEM-A-1G | MS3PROEVOHC-A-2 | 0.5 | no route | Purge solenoid | — | |
| W50 | OEM-A-1I | MS3PROEVOHC-A-5 | 0.5 | no route | Turbo charge relief solenoid | — | |
| W51 | OEM-A-1K | MS3PROEVOHC-B-11 | 0.5 | no route | Turbo pre-control solenoid | — | |
| W52 | OEM-A-1M | MS3PROEVOHC-B-12 | 0.5 | no route | Turbo control solenoid | — | |
| W53 | OEM-A-1O | MS3PROEVOHC-B-2 | 0.5 | no route | Boost control solenoid | — | |
| W54 | OEM-C-3G | MS3PROEVOHC-B-4 | 0.5 | no route | Fuel pressure regulator control (PRC) solenoid | — | |
| W55 | OEM-D-4M | MS3PROEVOHC-A-24 | 0.5 | no route | Tachometer output | — | |
| W56 | OEM-D-4AH | MS3PROEVOHC-A-19 | 0.5 | no route | MAP sensor (PIM) | — | |
| W57 | OEM-C-3I | MS3PROEVOHC-A-9 | 0.5 | no route | Throttle position (TPS, full range) | — | |
| W58 | OEM-C-3D | MS3PROEVOHC-A-25 | 0.5 | no route | O2 sensor (narrowband) | — | |
| W59 | OEM-C-3W | MS3PROEVOHC-A-10 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W60 | OEM-C-3T | MS3PROEVOHC-A-11 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W61 | OEM-C-3V | MS3PROEVOHC-A-20 | 0.5 | no route | Fuel temperature | — | |
| W62 | OEM-C-3H | MS3PROEVOHC-A-21 | 0.5 | no route | OMP position sensor | — | |
| W63 | OEM-D-4Q | MS3PROEVOHC-B-28 | 0.5 | no route | Vehicle speed sensor | — | |
| W64 | OEM-D-4AA | MS3PROEVOHC-A-32 | 0.5 | no route | Brake pedal switch | — | |
| W65 | OEM-D-4S | MS3PROEVOHC-B-20 | 0.5 | no route | Clutch switch | — | |
| W66 | OEM-D-4V | MS3PROEVOHC-B-29 | 0.5 | no route | A/C request | — | |
| W67 | OEM-D-4W | MS3PROEVOHC-C-11 | 0.5 | no route | Power steering pressure switch | — |
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 (6)
| Severity | Code | Subject | Message |
|---|---|---|---|
| info | NET_FAMILY | MS3PROEVOHC-A-27 ↔ MS3PROEVOHC-C-18 | MS3PROEVOHC-A-27 "CMP−" [trigger_in] is wired to MS3PROEVOHC-C-18 "Sensor return" [sensor_ground]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-A-1K ↔ MS3PROEVOHC-B-11 | OEM-A-1K "Turbo pre-control solenoid" [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-A-1M ↔ MS3PROEVOHC-B-12 | OEM-A-1M "Turbo 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-A-1O ↔ MS3PROEVOHC-B-2 | OEM-A-1O "Boost control solenoid" [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-C-3G ↔ MS3PROEVOHC-B-4 | OEM-C-3G "Fuel pressure regulator control (PRC) solenoid" [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-C-3V ↔ MS3PROEVOHC-A-20 | OEM-C-3V "Fuel temperature" [temp_in] is wired to MS3PROEVOHC-A-20 "Analog in 2" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-D-4B | 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: needs add-on. Resolve these before building: - Oil metering pump stepper driver needed; not documented for this ECU - Sequential twin-turbo control needed; not documented for this ECU Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Not wired: - OEM-D 4B: Battery constant (+12V): AMP EFI MS3Pro EVO+ HC has no battery-constant input; not needed
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 | Haltech: RX7 FD Series 7-8 Nexus PnP adapter pinout (HT-186338) | https://www.haltech.com/wp-admin/admin-ajax.php?action=ht_get_file&id=681af8c0cc78f3b6860e615e&op=1 | — | — | — |
| 2 | forum | defreezemotorsport: MS3 FD3S 16-bit ECU pinout | https://defreezemotorsport.ru/doku.php?id=ms3:fd3s162 | — | — | — |