Mazda RX-7 FC 1986-92 (13B-T Turbo II) → rusEFI Proteus (auto)
Mazda RX-7 FC 1986-92 (13B-T Turbo II) — rusEFI — Proteus
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 | 61 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-3-I | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | SP-14V-1 | PROTEUS-Black23-23 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W3 | OEM-2-R | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | OEM-3-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-3-G | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | SP-GND-1 | PROTEUS-Black23-14 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | SP-GND-1 | PROTEUS-Black23-19 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | PROTEUS-Black23-20 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | PROTEUS-Black35-17 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | PROTEUS-Black35-18 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W11 | SP-GND-1 | PROTEUS-Black35-24 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | OEM-1-P | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-1-Q | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-2-C | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | SP-0V-1 | PROTEUS-White35-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | SP-0V-1 | PROTEUS-White35-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | SP-0V-1 | PROTEUS-White35-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | SP-0V-1 | PROTEUS-White35-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | SP-0V-1 | PROTEUS-White35-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | SP-0V-1 | PROTEUS-White35-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | SP-0V-1 | PROTEUS-White35-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | SP-0V-1 | PROTEUS-White35-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | SP-0V-1 | PROTEUS-White35-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | SP-0V-1 | PROTEUS-White35-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-2-A | PROTEUS-White35-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-1-T | PROTEUS-Black23-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | SP-0V-1 | PROTEUS-Black23-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-1-N | PROTEUS-Black23-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-1-R | PROTEUS-White35-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-1-U | PROTEUS-Black35-35 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-1-V | PROTEUS-Black35-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-1-X | PROTEUS-Black35-22 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-3-E | PROTEUS-Black35-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-3-H | PROTEUS-Black35-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-3-C | PROTEUS-Black35-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-3-F | PROTEUS-Black35-16 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-1-F | PROTEUS-Black35-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-3-D | PROTEUS-Black35-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-1-C | PROTEUS-Black35-21 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-1-S | PROTEUS-Black35-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-2-K | PROTEUS-Black35-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-2-M | PROTEUS-Black35-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-2-N | PROTEUS-Black35-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-2-O | PROTEUS-Black35-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-2-P | PROTEUS-Black35-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-2-Q | PROTEUS-Black35-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-2-E | PROTEUS-White35-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-2-B | PROTEUS-White35-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-2-G | PROTEUS-White35-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-2-D | PROTEUS-White35-25 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-2-I | PROTEUS-White35-20 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-2-J | PROTEUS-White35-19 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-2-L | PROTEUS-White35-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-2-F | PROTEUS-White35-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-2-H | PROTEUS-White35-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-1-O | PROTEUS-Black23-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-1-E | PROTEUS-Black23-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-1-G | PROTEUS-Black23-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-1-H | PROTEUS-Black23-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-1-L | PROTEUS-Black23-11 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-3-B | PROTEUS-White35-16 | 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 | PROTEUS-White35-10 | PROTEUS-Black23-14 | open (OL) | 5 V sensor reference must not touch power ground | |
| 2 | PROTEUS-Black23-13 | PROTEUS-Black23-23 | open (OL) | sensor ground must not touch +12 V supply | |
| 3 | PROTEUS-Black23-13 | PROTEUS-White35-10 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 4 | PROTEUS-Black23-14 | PROTEUS-Black23-23 | open (OL) | power ground must not touch +12 V supply | |
| 5 | PROTEUS-White35-10 | PROTEUS-Black23-23 | open (OL) | 5 V sensor reference must not touch +12 V supply |
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
OEM-1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| C | Air bypass solenoid | — | W39 | — | 0.5 | PROTEUS-Black35-21 | — | — | — |
| E | A/C request | — | W57 | — | 0.5 | PROTEUS-Black23-10 | — | — | — |
| F | A/C clutch relay | — | W37 | — | 0.5 | PROTEUS-Black35-20 | — | — | — |
| G | Neutral switch | — | W58 | — | 0.5 | PROTEUS-Black23-3 | — | — | — |
| H | Water temperature switch | — | W59 | — | 0.5 | PROTEUS-Black23-9 | — | — | — |
| L | Clutch switch | — | W60 | — | 0.5 | PROTEUS-Black23-11 | — | — | — |
| M | Ignition feedback (tacho) | — | — | — | — | — | — | — | — |
| N | CAS 2-tooth (G, cam) | — | W28 | — | 0.5 | PROTEUS-Black23-1 | — | — | — |
| O | Vehicle speed (mileage sensor) | — | W56 | — | 0.5 | PROTEUS-Black23-2 | — | — | — |
| P | CAS ground | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| Q | CAS ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| R | Knock input | — | W29 | — | 0.5 | PROTEUS-White35-34 | — | — | — |
| S | Port air valve | — | W40 | — | 0.5 | PROTEUS-Black35-10 | — | — | — |
| T | CAS 24-tooth (NE, crank) | — | W26 | — | 0.5 | PROTEUS-Black23-5 | — | — | — |
| U | Ignition select (trailing rotor) | — | W30 | — | 0.5 | PROTEUS-Black35-35 | — | — | — |
| V | Ignition leading | — | W31 | — | 0.5 | PROTEUS-Black35-34 | — | — | — |
| X | Ignition trailing | — | W32 | — | 0.5 | PROTEUS-Black35-22 | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | 5V sensor supply | — | W25 | — | 0.5 | PROTEUS-White35-10 | — | — | — |
| B | MAP (pressure) signal | — | W48 | — | 0.5 | PROTEUS-White35-24 | — | — | — |
| C | Sensor ground | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| D | O2 sensor signal | — | W50 | — | 0.5 | PROTEUS-White35-25 | — | — | — |
| E | Airflow signal (AFM) | — | W47 | — | 0.5 | PROTEUS-White35-13 | — | — | — |
| F | Variable resistor (tuning) | — | W54 | — | 0.5 | PROTEUS-White35-15 | — | — | — |
| G | Throttle position (TPS) | — | W49 | — | 0.5 | PROTEUS-White35-14 | — | — | — |
| H | Atmospheric pressure (ATP) | — | W55 | — | 0.5 | PROTEUS-White35-26 | — | — | — |
| I | Coolant temperature (ECT) | — | W51 | — | 0.5 | PROTEUS-White35-20 | — | — | — |
| J | Inlet air temperature (IAT) | — | W52 | — | 0.5 | PROTEUS-White35-19 | — | — | — |
| K | Turbo control valve (boost) | — | W41 | — | 0.5 | PROTEUS-Black35-11 | — | — | — |
| L | Manifold air temperature (MAT) | — | W53 | — | 0.5 | PROTEUS-White35-31 | — | — | — |
| M | Pressure regulator control valve | — | W42 | — | 0.5 | PROTEUS-Black35-12 | — | — | — |
| N | EGR valve | — | W43 | — | 0.5 | PROTEUS-Black35-23 | — | — | — |
| O | Switching valve | — | W44 | — | 0.5 | PROTEUS-Black35-5 | — | — | — |
| P | Relief valve | — | W45 | — | 0.5 | PROTEUS-Black35-6 | — | — | — |
| Q | Idle control (BAC) | — | W46 | — | 0.5 | PROTEUS-Black35-7 | — | — | — |
| R | Power ground | — | W3 | — | 0.85 | SP-GND-1 | — | — | — |
OEM-3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W4 | — | 0.85 | SP-GND-1 | — | — | — |
| B | Starter input | — | W61 | — | 0.5 | PROTEUS-White35-16 | — | — | — |
| C | Primary injector 2 | — | W35 | — | 0.5 | PROTEUS-Black35-4 | — | — | — |
| D | Starter inhibit / fuel pump control | — | W38 | — | 0.5 | PROTEUS-Black35-9 | — | — | — |
| E | Primary injector 1 | — | W33 | — | 0.5 | PROTEUS-Black35-3 | — | — | — |
| F | Secondary injector 2 | — | W36 | — | 0.5 | PROTEUS-Black35-16 | — | — | — |
| G | Power ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| H | Secondary injector 1 | — | W34 | — | 0.5 | PROTEUS-Black35-15 | — | — | — |
| I | Ignition power (+12V via main relay) | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| J | Battery constant (+12V) | — | — | — | — | — | — | — | — |
PROTEUS-Black23
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Digital 2 | — | W28 | — | 0.5 | OEM-1-N | — | — | — |
| 10 | Digital 1 | — | W57 | — | 0.5 | OEM-1-E | — | — | — |
| 11 | Digital 6 | — | W60 | — | 0.5 | OEM-1-L | — | — | — |
| 12 | VR 2 negative | — | — | — | — | — | — | — | — |
| 13 | VR 1 negative | — | W27 | — | 0.5 | SP-0V-1 | — | — | — |
| 14 | Power ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 15 | ETB 2 positive | — | — | — | — | — | — | — | — |
| 16 | CAN 1 Low | — | — | — | — | — | — | — | — |
| 17 | CAN 1 High | — | — | — | — | — | — | — | — |
| 18 | Ignition switch in | — | — | — | — | — | — | — | — |
| 19 | Power ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 2 | Digital 3 | — | W56 | — | 0.5 | OEM-1-O | — | — | — |
| 20 | Power ground | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
| 21 | CAN 2 Low | — | — | — | — | — | — | — | — |
| 22 | CAN 2 High | — | — | — | — | — | — | — | — |
| 23 | Main relay feed | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 3 | Digital 4 | — | W58 | — | 0.5 | OEM-1-G | — | — | — |
| 4 | VR 2 positive | — | — | — | — | — | — | — | — |
| 5 | VR 1 positive | — | W26 | — | 0.5 | OEM-1-T | — | — | — |
| 6 | ETB 1 negative | — | — | — | — | — | — | — | — |
| 7 | ETB 1 positive | — | — | — | — | — | — | — | — |
| 8 | ETB 2 negative | — | — | — | — | — | — | — | — |
| 9 | Digital 5 | — | W59 | — | 0.5 | OEM-1-H | — | — | — |
PROTEUS-Black35
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Highside 2 | — | — | — | — | — | — | — | — |
| 10 | Lowside 13 | — | W40 | — | 0.5 | OEM-1-S | — | — | — |
| 11 | Lowside 14 | — | W41 | — | 0.5 | OEM-2-K | — | — | — |
| 12 | Lowside 15 | — | W42 | — | 0.5 | OEM-2-M | — | — | — |
| 13 | Highside 3 | — | — | — | — | — | — | — | — |
| 14 | Highside 4 | — | — | — | — | — | — | — | — |
| 15 | Injector 2 | — | W34 | — | 0.5 | OEM-3-H | — | — | — |
| 16 | Injector 4 | — | W36 | — | 0.5 | OEM-3-F | — | — | — |
| 17 | Power ground | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
| 18 | Power ground | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
| 19 | Injector 8 | — | — | — | — | — | — | — | — |
| 2 | Highside 1 | — | — | — | — | — | — | — | — |
| 20 | Lowside 10 | — | W37 | — | 0.5 | OEM-1-F | — | — | — |
| 21 | Lowside 12 | — | W39 | — | 0.5 | OEM-1-C | — | — | — |
| 22 | Ignition 3 | — | W32 | — | 0.5 | OEM-1-X | — | — | — |
| 23 | Lowside 16 | — | W43 | — | 0.5 | OEM-2-N | — | — | — |
| 24 | Power ground | — | W11 | — | 0.85 | SP-GND-1 | — | — | — |
| 25 | Ignition 12 | — | — | — | — | — | — | — | — |
| 26 | Ignition 11 | — | — | — | — | — | — | — | — |
| 27 | Ignition 10 | — | — | — | — | — | — | — | — |
| 28 | Ignition 9 | — | — | — | — | — | — | — | — |
| 29 | Ignition 8 | — | — | — | — | — | — | — | — |
| 3 | Injector 1 | — | W33 | — | 0.5 | OEM-3-E | — | — | — |
| 30 | Ignition 7 | — | — | — | — | — | — | — | — |
| 31 | Ignition 6 | — | — | — | — | — | — | — | — |
| 32 | Ignition 5 | — | — | — | — | — | — | — | — |
| 33 | Ignition 4 | — | — | — | — | — | — | — | — |
| 34 | Ignition 2 | — | W31 | — | 0.5 | OEM-1-V | — | — | — |
| 35 | Ignition 1 | — | W30 | — | 0.5 | OEM-1-U | — | — | — |
| 4 | Injector 3 | — | W35 | — | 0.5 | OEM-3-C | — | — | — |
| 5 | Injector 5 | — | W44 | — | 0.5 | OEM-2-O | — | — | — |
| 6 | Injector 6 | — | W45 | — | 0.5 | OEM-2-P | — | — | — |
| 7 | Injector 7 | — | W46 | — | 0.5 | OEM-2-Q | — | — | — |
| 8 | Injector 9 | — | — | — | — | — | — | — | — |
| 9 | Lowside 11 | — | W38 | — | 0.5 | OEM-3-D | — | — | — |
PROTEUS-White35
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sensor ground | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 10 | 5V supply #2 | — | W25 | — | 0.5 | OEM-2-A | — | — | — |
| 11 | 12V sensor supply | — | — | — | — | — | — | — | — |
| 12 | 12V sensor supply | — | — | — | — | — | — | — | — |
| 13 | Analog Volt 1 | — | W47 | — | 0.5 | OEM-2-E | — | — | — |
| 14 | Analog Volt 3 | — | W49 | — | 0.5 | OEM-2-G | — | — | — |
| 15 | Analog Volt 5 | — | W54 | — | 0.5 | OEM-2-F | — | — | — |
| 16 | Analog Volt 7 | — | W61 | — | 0.5 | OEM-3-B | — | — | — |
| 17 | Analog Volt 9 | — | — | — | — | — | — | — | — |
| 18 | Analog Volt 11 | — | — | — | — | — | — | — | — |
| 19 | Thermistor 1 | — | W52 | — | 0.5 | OEM-2-J | — | — | — |
| 2 | Sensor ground | — | W16 | — | 0.5 | SP-0V-1 | — | — | — |
| 20 | Coolant temp (CLT) | — | W51 | — | 0.5 | OEM-2-I | — | — | — |
| 21 | 5V supply #1 | — | — | — | — | — | — | — | — |
| 22 | 5V supply #2 | — | — | — | — | — | — | — | — |
| 23 | Sensor ground | — | W17 | — | 0.5 | SP-0V-1 | — | — | — |
| 24 | Analog Volt 2 | — | W48 | — | 0.5 | OEM-2-B | — | — | — |
| 25 | Analog Volt 4 | — | W50 | — | 0.5 | OEM-2-D | — | — | — |
| 26 | Analog Volt 6 | — | W55 | — | 0.5 | OEM-2-H | — | — | — |
| 27 | Analog Volt 8 | — | — | — | — | — | — | — | — |
| 28 | Analog Volt 10 | — | — | — | — | — | — | — | — |
| 29 | Sensor ground | — | W18 | — | 0.5 | SP-0V-1 | — | — | — |
| 3 | Sensor ground | — | W19 | — | 0.5 | SP-0V-1 | — | — | — |
| 30 | Intake air temp (IAT) | — | — | — | — | — | — | — | — |
| 31 | Thermistor 4 | — | W53 | — | 0.5 | OEM-2-L | — | — | — |
| 32 | 5V supply #1 | — | — | — | — | — | — | — | — |
| 33 | 5V supply #2 | — | — | — | — | — | — | — | — |
| 34 | Knock 1 | — | W29 | — | 0.5 | OEM-1-R | — | — | — |
| 35 | Knock 2 | — | — | — | — | — | — | — | — |
| 4 | Sensor ground | — | W20 | — | 0.5 | SP-0V-1 | — | — | — |
| 5 | Sensor ground | — | W21 | — | 0.5 | SP-0V-1 | — | — | — |
| 6 | Sensor ground | — | W22 | — | 0.5 | SP-0V-1 | — | — | — |
| 7 | Sensor ground | — | W23 | — | 0.5 | SP-0V-1 | — | — | — |
| 8 | Sensor ground | — | W24 | — | 0.5 | SP-0V-1 | — | — | — |
| 9 | 5V supply #1 | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W12 | — | 0.5 | OEM-1-P | — | — | — |
| 1 | — | — | W13 | — | 0.5 | OEM-1-Q | — | — | — |
| 1 | — | — | W14 | — | 0.5 | OEM-2-C | — | — | — |
| 1 | — | — | W15 | — | 0.5 | PROTEUS-White35-1 | — | — | — |
| 1 | — | — | W16 | — | 0.5 | PROTEUS-White35-2 | — | — | — |
| 1 | — | — | W17 | — | 0.5 | PROTEUS-White35-23 | — | — | — |
| 1 | — | — | W18 | — | 0.5 | PROTEUS-White35-29 | — | — | — |
| 1 | — | — | W19 | — | 0.5 | PROTEUS-White35-3 | — | — | — |
| 1 | — | — | W20 | — | 0.5 | PROTEUS-White35-4 | — | — | — |
| 1 | — | — | W21 | — | 0.5 | PROTEUS-White35-5 | — | — | — |
| 1 | — | — | W22 | — | 0.5 | PROTEUS-White35-6 | — | — | — |
| 1 | — | — | W23 | — | 0.5 | PROTEUS-White35-7 | — | — | — |
| 1 | — | — | W24 | — | 0.5 | PROTEUS-White35-8 | — | — | — |
| 1 | — | — | W27 | — | 0.5 | PROTEUS-Black23-13 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-3-I | — | — | — |
| 1 | — | — | W2 | — | 0.85 | PROTEUS-Black23-23 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W3 | — | 0.85 | OEM-2-R | — | — | — |
| 1 | — | — | W4 | — | 0.85 | OEM-3-A | — | — | — |
| 1 | — | — | W5 | — | 0.85 | OEM-3-G | — | — | — |
| 1 | — | — | W6 | — | 0.85 | PROTEUS-Black23-14 | — | — | — |
| 1 | — | — | W7 | — | 0.85 | PROTEUS-Black23-19 | — | — | — |
| 1 | — | — | W8 | — | 0.85 | PROTEUS-Black23-20 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | PROTEUS-Black35-17 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | PROTEUS-Black35-18 | — | — | — |
| 1 | — | — | W11 | — | 0.85 | PROTEUS-Black35-24 | — | — | — |
Pin map
| OEM point | OEM function | OEM family | Target point | Target function | Target family | Wire colour | Evidence |
|---|---|---|---|---|---|---|---|
| OEM-1-C | Air bypass solenoid | low_side_out | PROTEUS-Black35-21 | Lowside 12 | low_side_out | single_source | |
| OEM-1-E | A/C request | digital_in | PROTEUS-Black23-10 | Digital 1 | digital_in | single_source | |
| OEM-1-F | A/C clutch relay | low_side_out | PROTEUS-Black35-20 | Lowside 10 | low_side_out | single_source | |
| OEM-1-G | Neutral switch | digital_in | PROTEUS-Black23-3 | Digital 4 | digital_in | corroborated | |
| OEM-1-H | Water temperature switch | digital_in | PROTEUS-Black23-9 | Digital 5 | digital_in | corroborated | |
| OEM-1-L | Clutch switch | digital_in | PROTEUS-Black23-11 | Digital 6 | digital_in | single_source | |
| OEM-1-M | Ignition feedback (tacho) | tacho_out | — | — | — | single_source | |
| OEM-1-N | CAS 2-tooth (G, cam) | trigger_in | PROTEUS-Black23-1 | Digital 2 | trigger_in | corroborated | |
| OEM-1-O | Vehicle speed (mileage sensor) | digital_in | PROTEUS-Black23-2 | Digital 3 | digital_in | single_source | |
| OEM-1-P | CAS ground | sensor_ground | PROTEUS-Black23-13 + PROTEUS-White35-1 + PROTEUS-White35-2 + PROTEUS-White35-23 + PROTEUS-White35-29 + PROTEUS-White35-3 + PROTEUS-White35-4 + PROTEUS-White35-5 + PROTEUS-White35-6 + PROTEUS-White35-7 + PROTEUS-White35-8 | VR 1 negative + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground | sensor_ground + trigger_in | corroborated | |
| OEM-1-Q | CAS ground | sensor_ground | PROTEUS-Black23-13 + PROTEUS-White35-1 + PROTEUS-White35-2 + PROTEUS-White35-23 + PROTEUS-White35-29 + PROTEUS-White35-3 + PROTEUS-White35-4 + PROTEUS-White35-5 + PROTEUS-White35-6 + PROTEUS-White35-7 + PROTEUS-White35-8 | VR 1 negative + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground | sensor_ground + trigger_in | corroborated | |
| OEM-1-R | Knock input | knock_in | PROTEUS-White35-34 | Knock 1 | knock_in | corroborated | |
| OEM-1-S | Port air valve | low_side_out | PROTEUS-Black35-10 | Lowside 13 | low_side_out | single_source | |
| OEM-1-T | CAS 24-tooth (NE, crank) | trigger_in | PROTEUS-Black23-5 | VR 1 positive | trigger_in | corroborated | |
| OEM-1-U | Ignition select (trailing rotor) | ignition_out | PROTEUS-Black35-35 | Ignition 1 | ignition_out | corroborated | |
| OEM-1-V | Ignition leading | ignition_out | PROTEUS-Black35-34 | Ignition 2 | ignition_out | corroborated | |
| OEM-1-X | Ignition trailing | ignition_out | PROTEUS-Black35-22 | Ignition 3 | ignition_out | single_source | |
| OEM-2-A | 5V sensor supply | vref | PROTEUS-White35-10 | 5V supply #2 | vref | single_source | |
| OEM-2-B | MAP (pressure) signal | analog_in | PROTEUS-White35-24 | Analog Volt 2 | analog_in | single_source | |
| OEM-2-C | Sensor ground | sensor_ground | PROTEUS-Black23-13 + PROTEUS-White35-1 + PROTEUS-White35-2 + PROTEUS-White35-23 + PROTEUS-White35-29 + PROTEUS-White35-3 + PROTEUS-White35-4 + PROTEUS-White35-5 + PROTEUS-White35-6 + PROTEUS-White35-7 + PROTEUS-White35-8 | VR 1 negative + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground + Sensor ground | sensor_ground + trigger_in | single_source | |
| OEM-2-D | O2 sensor signal | lambda_nb_in | PROTEUS-White35-25 | Analog Volt 4 | analog_in | single_source | |
| OEM-2-E | Airflow signal (AFM) | analog_in | PROTEUS-White35-13 | Analog Volt 1 | analog_in | single_source | |
| OEM-2-F | Variable resistor (tuning) | analog_in | PROTEUS-White35-15 | Analog Volt 5 | analog_in | single_source | |
| OEM-2-G | Throttle position (TPS) | analog_in | PROTEUS-White35-14 | Analog Volt 3 | analog_in | single_source | |
| OEM-2-H | Atmospheric pressure (ATP) | analog_in | PROTEUS-White35-26 | Analog Volt 6 | analog_in | single_source | |
| OEM-2-I | Coolant temperature (ECT) | temp_in | PROTEUS-White35-20 | Coolant temp (CLT) | temp_in | single_source | |
| OEM-2-J | Inlet air temperature (IAT) | temp_in | PROTEUS-White35-19 | Thermistor 1 | temp_in | single_source | |
| OEM-2-K | Turbo control valve (boost) | low_side_out | PROTEUS-Black35-11 | Lowside 14 | low_side_out | single_source | |
| OEM-2-L | Manifold air temperature (MAT) | temp_in | PROTEUS-White35-31 | Thermistor 4 | temp_in | single_source | |
| OEM-2-M | Pressure regulator control valve | low_side_out | PROTEUS-Black35-12 | Lowside 15 | low_side_out | single_source | |
| OEM-2-N | EGR valve | low_side_out | PROTEUS-Black35-23 | Lowside 16 | low_side_out | single_source | |
| OEM-2-O | Switching valve | low_side_out | PROTEUS-Black35-5 | Injector 5 | injector_out | single_source | |
| OEM-2-P | Relief valve | low_side_out | PROTEUS-Black35-6 | Injector 6 | injector_out | single_source | |
| OEM-2-Q | Idle control (BAC) | low_side_out | PROTEUS-Black35-7 | Injector 7 | injector_out | single_source | |
| OEM-2-R | Power ground | ground | PROTEUS-Black23-14 + PROTEUS-Black23-19 + PROTEUS-Black23-20 + PROTEUS-Black35-17 + PROTEUS-Black35-18 + PROTEUS-Black35-24 | Power ground + Power ground + Power ground + Power ground + Power ground + Power ground | ground | single_source | |
| OEM-3-A | Power ground | ground | PROTEUS-Black23-14 + PROTEUS-Black23-19 + PROTEUS-Black23-20 + PROTEUS-Black35-17 + PROTEUS-Black35-18 + PROTEUS-Black35-24 | Power ground + Power ground + Power ground + Power ground + Power ground + Power ground | ground | single_source | |
| OEM-3-B | Starter input | digital_in | PROTEUS-White35-16 | Analog Volt 7 | analog_in | single_source | |
| OEM-3-C | Primary injector 2 | injector_out | PROTEUS-Black35-4 | Injector 3 | injector_out | single_source | |
| OEM-3-D | Starter inhibit / fuel pump control | low_side_out | PROTEUS-Black35-9 | Lowside 11 | low_side_out | single_source | |
| OEM-3-E | Primary injector 1 | injector_out | PROTEUS-Black35-3 | Injector 1 | injector_out | single_source | |
| OEM-3-F | Secondary injector 2 | injector_out | PROTEUS-Black35-16 | Injector 4 | injector_out | single_source | |
| OEM-3-G | Power ground | ground | PROTEUS-Black23-14 + PROTEUS-Black23-19 + PROTEUS-Black23-20 + PROTEUS-Black35-17 + PROTEUS-Black35-18 + PROTEUS-Black35-24 | Power ground + Power ground + Power ground + Power ground + Power ground + Power ground | ground | single_source | |
| OEM-3-H | Secondary injector 1 | injector_out | PROTEUS-Black35-15 | Injector 2 | injector_out | single_source | |
| OEM-3-I | Ignition power (+12V via main relay) | power_in | PROTEUS-Black23-23 | Main relay feed | power_in | single_source | |
| OEM-3-J | Battery constant (+12V) | power_in | — | — | — | single_source |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-3-I | SP-14V-1 | 0.85 | no route | Ignition power (+12V via main relay) | — | |
| W2 | SP-14V-1 | PROTEUS-Black23-23 | 0.85 | no route | Main relay feed | — | |
| W3 | OEM-2-R | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W4 | OEM-3-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W5 | OEM-3-G | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W6 | SP-GND-1 | PROTEUS-Black23-14 | 0.85 | no route | Power ground | — | |
| W7 | SP-GND-1 | PROTEUS-Black23-19 | 0.85 | no route | Power ground | — | |
| W8 | SP-GND-1 | PROTEUS-Black23-20 | 0.85 | no route | Power ground | — | |
| W9 | SP-GND-1 | PROTEUS-Black35-17 | 0.85 | no route | Power ground | — | |
| W10 | SP-GND-1 | PROTEUS-Black35-18 | 0.85 | no route | Power ground | — | |
| W11 | SP-GND-1 | PROTEUS-Black35-24 | 0.85 | no route | Power ground | — | |
| W12 | OEM-1-P | SP-0V-1 | 0.5 | no route | CAS ground | — | |
| W13 | OEM-1-Q | SP-0V-1 | 0.5 | no route | CAS ground | — | |
| W14 | OEM-2-C | SP-0V-1 | 0.5 | no route | Sensor ground | — | |
| W15 | SP-0V-1 | PROTEUS-White35-1 | 0.5 | no route | Sensor ground | — | |
| W16 | SP-0V-1 | PROTEUS-White35-2 | 0.5 | no route | Sensor ground | — | |
| W17 | SP-0V-1 | PROTEUS-White35-23 | 0.5 | no route | Sensor ground | — | |
| W18 | SP-0V-1 | PROTEUS-White35-29 | 0.5 | no route | Sensor ground | — | |
| W19 | SP-0V-1 | PROTEUS-White35-3 | 0.5 | no route | Sensor ground | — | |
| W20 | SP-0V-1 | PROTEUS-White35-4 | 0.5 | no route | Sensor ground | — | |
| W21 | SP-0V-1 | PROTEUS-White35-5 | 0.5 | no route | Sensor ground | — | |
| W22 | SP-0V-1 | PROTEUS-White35-6 | 0.5 | no route | Sensor ground | — | |
| W23 | SP-0V-1 | PROTEUS-White35-7 | 0.5 | no route | Sensor ground | — | |
| W24 | SP-0V-1 | PROTEUS-White35-8 | 0.5 | no route | Sensor ground | — | |
| W25 | OEM-2-A | PROTEUS-White35-10 | 0.5 | no route | 5V sensor supply | — | |
| W26 | OEM-1-T | PROTEUS-Black23-5 | 0.5 | no route | CAS 24-tooth (NE, crank) | — | |
| W27 | SP-0V-1 | PROTEUS-Black23-13 | 0.5 | no route | VR 1 negative | — | |
| W28 | OEM-1-N | PROTEUS-Black23-1 | 0.5 | no route | CAS 2-tooth (G, cam) | — | |
| W29 | OEM-1-R | PROTEUS-White35-34 | 0.5 | no route | Knock input | — | |
| W30 | OEM-1-U | PROTEUS-Black35-35 | 0.5 | no route | Ignition select (trailing rotor) | — | |
| W31 | OEM-1-V | PROTEUS-Black35-34 | 0.5 | no route | Ignition leading | — | |
| W32 | OEM-1-X | PROTEUS-Black35-22 | 0.5 | no route | Ignition trailing | — | |
| W33 | OEM-3-E | PROTEUS-Black35-3 | 0.5 | no route | Primary injector 1 | — | |
| W34 | OEM-3-H | PROTEUS-Black35-15 | 0.5 | no route | Secondary injector 1 | — | |
| W35 | OEM-3-C | PROTEUS-Black35-4 | 0.5 | no route | Primary injector 2 | — | |
| W36 | OEM-3-F | PROTEUS-Black35-16 | 0.5 | no route | Secondary injector 2 | — | |
| W37 | OEM-1-F | PROTEUS-Black35-20 | 0.5 | no route | A/C clutch relay | — | |
| W38 | OEM-3-D | PROTEUS-Black35-9 | 0.5 | no route | Starter inhibit / fuel pump control | — | |
| W39 | OEM-1-C | PROTEUS-Black35-21 | 0.5 | no route | Air bypass solenoid | — | |
| W40 | OEM-1-S | PROTEUS-Black35-10 | 0.5 | no route | Port air valve | — | |
| W41 | OEM-2-K | PROTEUS-Black35-11 | 0.5 | no route | Turbo control valve (boost) | — | |
| W42 | OEM-2-M | PROTEUS-Black35-12 | 0.5 | no route | Pressure regulator control valve | — | |
| W43 | OEM-2-N | PROTEUS-Black35-23 | 0.5 | no route | EGR valve | — | |
| W44 | OEM-2-O | PROTEUS-Black35-5 | 0.5 | no route | Switching valve | — | |
| W45 | OEM-2-P | PROTEUS-Black35-6 | 0.5 | no route | Relief valve | — | |
| W46 | OEM-2-Q | PROTEUS-Black35-7 | 0.5 | no route | Idle control (BAC) | — | |
| W47 | OEM-2-E | PROTEUS-White35-13 | 0.5 | no route | Airflow signal (AFM) | — | |
| W48 | OEM-2-B | PROTEUS-White35-24 | 0.5 | no route | MAP (pressure) signal | — | |
| W49 | OEM-2-G | PROTEUS-White35-14 | 0.5 | no route | Throttle position (TPS) | — | |
| W50 | OEM-2-D | PROTEUS-White35-25 | 0.5 | no route | O2 sensor signal | — | |
| W51 | OEM-2-I | PROTEUS-White35-20 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W52 | OEM-2-J | PROTEUS-White35-19 | 0.5 | no route | Inlet air temperature (IAT) | — | |
| W53 | OEM-2-L | PROTEUS-White35-31 | 0.5 | no route | Manifold air temperature (MAT) | — | |
| W54 | OEM-2-F | PROTEUS-White35-15 | 0.5 | no route | Variable resistor (tuning) | — | |
| W55 | OEM-2-H | PROTEUS-White35-26 | 0.5 | no route | Atmospheric pressure (ATP) | — | |
| W56 | OEM-1-O | PROTEUS-Black23-2 | 0.5 | no route | Vehicle speed (mileage sensor) | — | |
| W57 | OEM-1-E | PROTEUS-Black23-10 | 0.5 | no route | A/C request | — | |
| W58 | OEM-1-G | PROTEUS-Black23-3 | 0.5 | no route | Neutral switch | — | |
| W59 | OEM-1-H | PROTEUS-Black23-9 | 0.5 | no route | Water temperature switch | — | |
| W60 | OEM-1-L | PROTEUS-Black23-11 | 0.5 | no route | Clutch switch | — | |
| W61 | OEM-3-B | PROTEUS-White35-16 | 0.5 | no route | Starter input | — |
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 |
|---|---|---|---|
| warn | NET_FAMILY | OEM-3-B ↔ PROTEUS-White35-16 | OEM-3-B "Starter input" [digital_in] is wired to PROTEUS-White35-16 "Analog Volt 7" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value. |
| info | NET_FAMILY | OEM-1-Q ↔ PROTEUS-Black23-13 | OEM-1-Q "CAS ground" [sensor_ground] is wired to PROTEUS-Black23-13 "VR 1 negative" [trigger_in]. Trigger return tied to sensor/trigger ground: correct for single-ended trigger inputs. |
| info | NET_FAMILY | OEM-2-O ↔ PROTEUS-Black35-5 | OEM-2-O "Switching valve" [low_side_out] is wired to PROTEUS-Black35-5 "Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-P ↔ PROTEUS-Black35-6 | OEM-2-P "Relief valve" [low_side_out] is wired to PROTEUS-Black35-6 "Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-2-Q ↔ PROTEUS-Black35-7 | OEM-2-Q "Idle control (BAC)" [low_side_out] is wired to PROTEUS-Black35-7 "Injector 7" [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-1-M Ignition feedback (tacho) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-3-J | Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed. | mapping-proposal |
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-3 J: Battery constant (+12V): rusEFI Proteus has no battery-constant input; not needed - OEM-1 M: Ignition feedback (tacho): no free tacho/frequency_out/low_side/ls_hs on rusEFI Proteus - PROTEUS-Black23 18: Ignition switch 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 | Adaptronic: Select RX7 Series 4 FC Turbo plug-in pinout | https://www.rx7club.com/attachments/adaptronic-engine-mgmt-aus-311/543323d1411579751-need-pin-out-diagram-s5-pnp-rx7_s4_sel_pinout.pdf | — | — | — |
| 4 | vendor_doc | rusEFI Proteus — board connector definitions (Black35 / White35 / Black23) | https://github.com/rusefi/rusefi/tree/master/firmware/config/boards/proteus/connectors | archive | 2026-10-05 | 738a2ea934c0 |
| 2 | forum | MSExtra: FC3S CAS wiring (NE/G) | https://www.msextra.com/forums/viewtopic.php?p=279694 | — | — | — |
| 2 | forum | NoPistons: S4 Turbo II main harness wiring (ECU plug, colours only) | https://www.nopistons.com/1st-generation-specific-16/thinking-putting-89-13bt-sa22-66354/page2/ | — | — | — |