Mazda RX-7 FD 1992-2002 (13B-REW twin-turbo) → MaxxECU MaxxECU GEN2 RACE (auto)
Mazda RX-7 FD 1992-2002 (13B-REW twin-turbo) — MaxxECU — MaxxECU GEN2 RACE
⚠ 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 | 58 wires · 10 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 | MAXXECUGEN2R-MX1-25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W4 | SP-14V-1 | MAXXECUGEN2R-MX2-25 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W5 | OEM-A-1AF | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-A-1AJ | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-A-1L | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W8 | SP-GND-1 | MAXXECUGEN2R-MX1-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W9 | SP-GND-1 | MAXXECUGEN2R-MX2-9 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W10 | SP-GND-1 | MAXXECUGEN2R-MX3-9 | 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 | MAXXECUGEN2R-MX1-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-C-3A | MAXXECUGEN2R-MX1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-C-3R | MAXXECUGEN2R-MX1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-C-3U | MAXXECUGEN2R-MX1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-C-3O | MAXXECUGEN2R-MX2-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-D-4AF | MAXXECUGEN2R-MX1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-D-4AJ | MAXXECUGEN2R-MX1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-D-4AN | MAXXECUGEN2R-MX1-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-A-1Q | MAXXECUGEN2R-MX1-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-A-1U | MAXXECUGEN2R-MX1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-A-1Y | MAXXECUGEN2R-MX1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-A-1AC | MAXXECUGEN2R-MX1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-D-4C | MAXXECUGEN2R-MX2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-A-1AA | MAXXECUGEN2R-MX2-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-A-1AE | MAXXECUGEN2R-MX2-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-A-1S | MAXXECUGEN2R-MX3-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-A-1W | MAXXECUGEN2R-MX3-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-A-1H | MAXXECUGEN2R-MX1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-D-4D | MAXXECUGEN2R-MX1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-D-4F | MAXXECUGEN2R-MX1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-D-4G | MAXXECUGEN2R-MX1-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-D-4I | MAXXECUGEN2R-MX1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-D-4K | MAXXECUGEN2R-MX2-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-D-4L | MAXXECUGEN2R-MX2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-A-1C | MAXXECUGEN2R-MX2-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-A-1E | MAXXECUGEN2R-MX3-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-A-1G | MAXXECUGEN2R-MX3-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-A-1I | MAXXECUGEN2R-MX3-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-A-1K | MAXXECUGEN2R-MX3-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-A-1M | MAXXECUGEN2R-MX3-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-A-1O | MAXXECUGEN2R-MX3-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-C-3G | MAXXECUGEN2R-MX4-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-D-4AH | MAXXECUGEN2R-MX1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-C-3I | MAXXECUGEN2R-MX1-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-C-3D | MAXXECUGEN2R-MX1-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-C-3W | MAXXECUGEN2R-MX1-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-C-3T | MAXXECUGEN2R-MX1-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-C-3V | MAXXECUGEN2R-MX2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-C-3H | MAXXECUGEN2R-MX2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-D-4Q | MAXXECUGEN2R-MX1-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-D-4AA | MAXXECUGEN2R-MX1-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-D-4S | MAXXECUGEN2R-MX4-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-D-4V | MAXXECUGEN2R-MX4-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-D-4W | MAXXECUGEN2R-MX4-9 | 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 | MAXXECUGEN2R-MX1-12 | MAXXECUGEN2R-MX1-25 | open (OL) | 5 V sensor reference must not touch +12 V supply | |
| 2 | MAXXECUGEN2R-MX1-14 | MAXXECUGEN2R-MX1-12 | open (OL) | sensor ground must not touch 5 V sensor reference | |
| 3 | MAXXECUGEN2R-MX1-14 | MAXXECUGEN2R-MX1-25 | open (OL) | sensor ground must not touch +12 V supply | |
| 4 | MAXXECUGEN2R-MX1-9 | MAXXECUGEN2R-MX1-12 | open (OL) | power ground must not touch 5 V sensor reference | |
| 5 | MAXXECUGEN2R-MX1-9 | MAXXECUGEN2R-MX1-25 | open (OL) | power ground must not touch +12 V supply |
If any reading doesn't match, stop and get help before powering up.
Revisions
| Rev | Label | By | Date |
|---|---|---|---|
| No revisions yet. | |||
Schematic
Connectors
MAXXECUGEN2R-MX1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition 1 | — | W20 | — | 0.5 | OEM-D-4AF | — | — | — |
| 10 | Digital/VR 1 SIGNAL + | — | W17 | — | 0.5 | OEM-C-3R | — | — | — |
| 11 | Digital/VR 1 SIGNAL - | — | — | — | — | — | — | — | — |
| 12 | Digital/VR 1 POWER SUPPLY | — | W16 | — | 0.5 | OEM-C-3A | — | — | — |
| 13 | Digital/VR 1 SHIELD | — | — | — | — | — | — | — | — |
| 14 | SENSOR GND | — | W15 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CAN L | — | — | — | — | — | — | — | — |
| 16 | CAN H | — | — | — | — | — | — | — | — |
| 17 | GP out 5 (GND) | — | W36 | — | 0.5 | OEM-D-4I | — | — | — |
| 18 | Digital/VR 2 SIGNAL + | — | W18 | — | 0.5 | OEM-C-3U | — | — | — |
| 19 | Digital/VR 2 SIGNAL - | — | — | — | — | — | — | — | — |
| 2 | Ignition 2 | — | W21 | — | 0.5 | OEM-D-4AJ | — | — | — |
| 20 | Digital/VR 2 POWER SUPPLY | — | — | — | — | — | — | — | — |
| 21 | Digital/VR 2 SHIELD | — | — | — | — | — | — | — | — |
| 22 | 5V power supply | — | — | — | — | — | — | — | — |
| 23 | Digital/VR 3 SIGNAL + | — | W54 | — | 0.5 | OEM-D-4Q | — | — | — |
| 24 | Digital/VR 4 SIGNAL + | — | W55 | — | 0.5 | OEM-D-4AA | — | — | — |
| 25 | 12V supply 1 | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | AIN 1 | — | W47 | — | 0.5 | OEM-D-4AH | — | — | — |
| 27 | AIN 2 | — | W48 | — | 0.5 | OEM-C-3I | — | — | — |
| 28 | AIN 3 | — | W49 | — | 0.5 | OEM-C-3D | — | — | — |
| 29 | AIN 4 | — | W50 | — | 0.5 | OEM-C-3W | — | — | — |
| 3 | Ignition 3 | — | W22 | — | 0.5 | OEM-D-4AN | — | — | — |
| 30 | AIN 5 | — | W51 | — | 0.5 | OEM-C-3T | — | — | — |
| 31 | INJECTOR 1 | — | W23 | — | 0.5 | OEM-A-1Q | — | — | — |
| 32 | INJECTOR 2 | — | W24 | — | 0.5 | OEM-A-1U | — | — | — |
| 33 | INJECTOR 3 | — | W25 | — | 0.5 | OEM-A-1Y | — | — | — |
| 34 | INJECTOR 4 | — | W26 | — | 0.5 | OEM-A-1AC | — | — | — |
| 4 | Ignition 4 | — | — | — | — | — | — | — | — |
| 5 | GP out 1 (GND) | — | W32 | — | 0.5 | OEM-A-1H | — | — | — |
| 6 | GP out 2 (GND) | — | W33 | — | 0.5 | OEM-D-4D | — | — | — |
| 7 | GP out 3 (GND) | — | W34 | — | 0.5 | OEM-D-4F | — | — | — |
| 8 | GP out 4 (GND) | — | W35 | — | 0.5 | OEM-D-4G | — | — | — |
| 9 | Engine gnd | — | W8 | — | 0.85 | SP-GND-1 | — | — | — |
MAXXECUGEN2R-MX2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition 5 | — | — | — | — | — | — | — | — |
| 10 | WBO2 Sensor 1 VS | — | — | — | — | — | — | — | — |
| 11 | WBO2 Sensor 1 COM/VREF | — | — | — | — | — | — | — | — |
| 12 | GP OUT 7 / WBO2 Sensor 1 H- | — | — | — | — | — | — | — | — |
| 13 | AIN 9 | — | — | — | — | — | — | — | — |
| 14 | AIN 10 | — | — | — | — | — | — | — | — |
| 15 | AIN 11 | — | — | — | — | — | — | — | — |
| 16 | AIN 12 | — | — | — | — | — | — | — | — |
| 17 | AIN 13 | — | — | — | — | — | — | — | — |
| 18 | WBO2 sensor 1 RCAL | — | — | — | — | — | — | — | — |
| 19 | WBO2 sensor 1 IP | — | — | — | — | — | — | — | — |
| 2 | Ignition 6 | — | — | — | — | — | — | — | — |
| 20 | 12V WBO2 sensor 1 H+ | — | — | — | — | — | — | — | — |
| 21 | WBO2 sensor 1 SHIELD | — | — | — | — | — | — | — | — |
| 22 | AIN 14 | — | — | — | — | — | — | — | — |
| 23 | AIN 15 | — | — | — | — | — | — | — | — |
| 24 | 12V supply 3 | — | W27 | — | 0.5 | OEM-D-4C | — | — | — |
| 25 | 12V supply 2 | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | KNOCK1 SHIELD | — | — | — | — | — | — | — | — |
| 27 | KNOCK 1- | — | — | — | — | — | — | — | — |
| 28 | KNOCK 1+ | — | W19 | — | 0.5 | OEM-C-3O | — | — | — |
| 29 | KNOCK 2 SHIELD | — | — | — | — | — | — | — | — |
| 3 | GP out 6 (GND) | — | W37 | — | 0.5 | OEM-D-4K | — | — | — |
| 30 | KNOCK 2- | — | — | — | — | — | — | — | — |
| 31 | KNOCK 2+ | — | — | — | — | — | — | — | — |
| 32 | AIN 16 | — | — | — | — | — | — | — | — |
| 33 | INJECTOR 5 | — | W38 | — | 0.5 | OEM-D-4L | — | — | — |
| 34 | INJECTOR 6 | — | W39 | — | 0.5 | OEM-A-1C | — | — | — |
| 4 | AIN 6 | — | W52 | — | 0.5 | OEM-C-3V | — | — | — |
| 5 | AIN 7 | — | W53 | — | 0.5 | OEM-C-3H | — | — | — |
| 6 | AIN 8 | — | — | — | — | — | — | — | — |
| 7 | GP out 13 (H-BRIDGE 1) | — | W28 | — | 0.5 | OEM-A-1AA | — | — | — |
| 8 | GP out 14 (H-BRIDGE 1) | — | W29 | — | 0.5 | OEM-A-1AE | — | — | — |
| 9 | Engine gnd | — | W9 | — | 0.85 | SP-GND-1 | — | — | — |
MAXXECUGEN2R-MX3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | GP out 15 (H-BRIDGE 2) | — | W30 | — | 0.5 | OEM-A-1S | — | — | — |
| 10 | WBO2 sensor 2 VS | — | — | — | — | — | — | — | — |
| 11 | WBO2 sensor 2 COM/VREF | — | — | — | — | — | — | — | — |
| 12 | GP Out 8 (GND) / WBO2 Sensor 2 H- | — | — | — | — | — | — | — | — |
| 13 | WBO2 sensor 2 SHIELD | — | — | — | — | — | — | — | — |
| 14 | GP OUT 9 (12V) | — | — | — | — | — | — | — | — |
| 15 | GP OUT 10 (12V) | — | — | — | — | — | — | — | — |
| 16 | GP OUT 11 (12V) | — | — | — | — | — | — | — | — |
| 17 | GP OUT 12 (12V) | — | — | — | — | — | — | — | — |
| 18 | WBO2 sensor 2 RCAL | — | — | — | — | — | — | — | — |
| 19 | WBO2 sensor 2 IP | — | — | — | — | — | — | — | — |
| 2 | GP out 16 (H-BRIDGE 2) | — | W31 | — | 0.5 | OEM-A-1W | — | — | — |
| 20 | 12V WBO2 sensor 2 (H+) | — | — | — | — | — | — | — | — |
| 21 | AIN 17 | — | — | — | — | — | — | — | — |
| 22 | AIN 18 | — | — | — | — | — | — | — | — |
| 23 | AIN 19 | — | — | — | — | — | — | — | — |
| 24 | AIN 20 | — | — | — | — | — | — | — | — |
| 25 | AIN 21 | — | — | — | — | — | — | — | — |
| 26 | AIN 22 | — | — | — | — | — | — | — | — |
| 27 | AIN 23 | — | — | — | — | — | — | — | — |
| 28 | AIN 24 | — | — | — | — | — | — | — | — |
| 29 | INJECTOR 7 | — | W40 | — | 0.5 | OEM-A-1E | — | — | — |
| 3 | Ignition 7 | — | — | — | — | — | — | — | — |
| 30 | INJECTOR 8 | — | W41 | — | 0.5 | OEM-A-1G | — | — | — |
| 31 | INJECTOR 9 | — | W42 | — | 0.5 | OEM-A-1I | — | — | — |
| 32 | INJECTOR 10 | — | W43 | — | 0.5 | OEM-A-1K | — | — | — |
| 33 | INJECTOR 11 | — | W44 | — | 0.5 | OEM-A-1M | — | — | — |
| 34 | INJECTOR 12 | — | W45 | — | 0.5 | OEM-A-1O | — | — | — |
| 4 | Ignition 8 | — | — | — | — | — | — | — | — |
| 5 | Ignition 9 | — | — | — | — | — | — | — | — |
| 6 | Ignition 10 | — | — | — | — | — | — | — | — |
| 7 | Ignition 11 | — | — | — | — | — | — | — | — |
| 8 | Ignition 12 | — | — | — | — | — | — | — | — |
| 9 | Engine gnd | — | W10 | — | 0.85 | SP-GND-1 | — | — | — |
MAXXECUGEN2R-MX4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Digital/VR 5 SHIELD | — | — | — | — | — | — | — | — |
| 10 | EGT 1 + | — | — | — | — | — | — | — | — |
| 11 | EGT 2 + | — | — | — | — | — | — | — | — |
| 12 | EGT 3 + | — | — | — | — | — | — | — | — |
| 13 | EGT 4 + | — | — | — | — | — | — | — | — |
| 14 | EGT 5 + | — | — | — | — | — | — | — | — |
| 15 | EGT 6 + | — | — | — | — | — | — | — | — |
| 16 | EGT 7 + | — | — | — | — | — | — | — | — |
| 17 | EGT 8 + | — | — | — | — | — | — | — | — |
| 18 | EGT 1 - | — | — | — | — | — | — | — | — |
| 19 | EGT 2 - | — | — | — | — | — | — | — | — |
| 2 | Digital/VR 5 SIGNAL - | — | — | — | — | — | — | — | — |
| 20 | EGT 3 - | — | — | — | — | — | — | — | — |
| 21 | EGT 4 - | — | — | — | — | — | — | — | — |
| 22 | EGT 5 - | — | — | — | — | — | — | — | — |
| 23 | EGT 6 - | — | — | — | — | — | — | — | — |
| 24 | EGT 7 - | — | — | — | — | — | — | — | — |
| 25 | EGT 8 - | — | — | — | — | — | — | — | — |
| 26 | Digital/VR 8 SHIELD | — | — | — | — | — | — | — | — |
| 27 | Digital/VR 8 SIGNAL - | — | — | — | — | — | — | — | — |
| 28 | Digital/VR 8 SIGNAL + | — | — | — | — | — | — | — | — |
| 29 | CAN 2 L | — | — | — | — | — | — | — | — |
| 3 | Digital/VR 5 SIGNAL + | — | W56 | — | 0.5 | OEM-D-4S | — | — | — |
| 30 | CAN 2 H | — | — | — | — | — | — | — | — |
| 31 | INJECTOR 13 | — | W46 | — | 0.5 | OEM-C-3G | — | — | — |
| 32 | INJECTOR 14 | — | — | — | — | — | — | — | — |
| 33 | INJECTOR 15 | — | — | — | — | — | — | — | — |
| 34 | INJECTOR 16 | — | — | — | — | — | — | — | — |
| 4 | Digital/VR 6 SHIELD | — | — | — | — | — | — | — | — |
| 5 | Digital/VR 6 SIGNAL - | — | — | — | — | — | — | — | — |
| 6 | Digital/VR 6 SIGNAL + | — | W57 | — | 0.5 | OEM-D-4V | — | — | — |
| 7 | Digital/VR 7 SHIELD | — | — | — | — | — | — | — | — |
| 8 | Digital/VR 7 SIGNAL - | — | — | — | — | — | — | — | — |
| 9 | Digital/VR 7 SIGNAL + | — | W58 | — | 0.5 | OEM-D-4W | — | — | — |
OEM-A
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1AA | OMP stepper phase B1 | — | W28 | — | 0.5 | MAXXECUGEN2R-MX2-7 | — | — | — |
| 1AB | Sensor ground | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| 1AC | Injector 4 (rear secondary) | — | W26 | — | 0.5 | MAXXECUGEN2R-MX1-34 | — | — | — |
| 1AE | OMP stepper phase A1 | — | W29 | — | 0.5 | MAXXECUGEN2R-MX2-8 | — | — | — |
| 1AF | Power ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| 1AJ | Power ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| 1C | Idle speed control (ISC) solenoid | — | W39 | — | 0.5 | MAXXECUGEN2R-MX2-34 | — | — | — |
| 1E | Turbo charge control solenoid | — | W40 | — | 0.5 | MAXXECUGEN2R-MX3-29 | — | — | — |
| 1G | Purge solenoid | — | W41 | — | 0.5 | MAXXECUGEN2R-MX3-30 | — | — | — |
| 1H | Cooling fan relay (low speed) | — | W32 | — | 0.5 | MAXXECUGEN2R-MX1-5 | — | — | — |
| 1I | Turbo charge relief solenoid | — | W42 | — | 0.5 | MAXXECUGEN2R-MX3-31 | — | — | — |
| 1K | Turbo pre-control solenoid | — | W43 | — | 0.5 | MAXXECUGEN2R-MX3-32 | — | — | — |
| 1L | Power ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| 1M | Turbo control solenoid | — | W44 | — | 0.5 | MAXXECUGEN2R-MX3-33 | — | — | — |
| 1O | Boost control solenoid | — | W45 | — | 0.5 | MAXXECUGEN2R-MX3-34 | — | — | — |
| 1Q | Injector 1 (front primary) | — | W23 | — | 0.5 | MAXXECUGEN2R-MX1-31 | — | — | — |
| 1S | OMP stepper phase B2 | — | W30 | — | 0.5 | MAXXECUGEN2R-MX3-1 | — | — | — |
| 1U | Injector 2 (rear primary) | — | W24 | — | 0.5 | MAXXECUGEN2R-MX1-32 | — | — | — |
| 1W | OMP stepper phase A2 | — | W31 | — | 0.5 | MAXXECUGEN2R-MX3-2 | — | — | — |
| 1X | Sensor ground | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 1Y | Injector 3 (front secondary) | — | W25 | — | 0.5 | MAXXECUGEN2R-MX1-33 | — | — | — |
OEM-C
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 3A | +5V sensor supply | — | W16 | — | 0.5 | MAXXECUGEN2R-MX1-12 | — | — | — |
| 3AB | Sensor ground | — | W13 | — | 0.5 | SP-0V-1 | — | — | — |
| 3D | O2 sensor (narrowband) | — | W49 | — | 0.5 | MAXXECUGEN2R-MX1-28 | — | — | — |
| 3G | Fuel pressure regulator control (PRC) solenoid | — | W46 | — | 0.5 | MAXXECUGEN2R-MX4-31 | — | — | — |
| 3H | OMP position sensor | — | W53 | — | 0.5 | MAXXECUGEN2R-MX2-5 | — | — | — |
| 3I | Throttle position (TPS, full range) | — | W48 | — | 0.5 | MAXXECUGEN2R-MX1-27 | — | — | — |
| 3O | Knock sensor | — | W19 | — | 0.5 | MAXXECUGEN2R-MX2-28 | — | — | — |
| 3R | Crank position (CAS NE) | — | W17 | — | 0.5 | MAXXECUGEN2R-MX1-10 | — | — | — |
| 3S | Sensor ground (CAS) | — | W14 | — | 0.5 | SP-0V-1 | — | — | — |
| 3T | Intake air temperature (IAT) | — | W51 | — | 0.5 | MAXXECUGEN2R-MX1-30 | — | — | — |
| 3U | Home position (CAS G) | — | W18 | — | 0.5 | MAXXECUGEN2R-MX1-18 | — | — | — |
| 3V | Fuel temperature | — | W52 | — | 0.5 | MAXXECUGEN2R-MX2-4 | — | — | — |
| 3W | Coolant temperature (ECT) | — | W50 | — | 0.5 | MAXXECUGEN2R-MX1-29 | — | — | — |
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 | — | W55 | — | 0.5 | MAXXECUGEN2R-MX1-24 | — | — | — |
| 4AF | Ignition front trailing | — | W20 | — | 0.5 | MAXXECUGEN2R-MX1-1 | — | — | — |
| 4AH | MAP sensor (PIM) | — | W47 | — | 0.5 | MAXXECUGEN2R-MX1-26 | — | — | — |
| 4AJ | Ignition rear trailing | — | W21 | — | 0.5 | MAXXECUGEN2R-MX1-2 | — | — | — |
| 4AN | Ignition leading (wasted spark) | — | W22 | — | 0.5 | MAXXECUGEN2R-MX1-3 | — | — | — |
| 4B | Battery constant (+12V) | — | — | — | — | — | — | — | — |
| 4C | Ignition switch / start signal | — | W27 | — | 0.5 | MAXXECUGEN2R-MX2-24 | — | — | — |
| 4D | Air pump clutch relay | — | W33 | — | 0.5 | MAXXECUGEN2R-MX1-6 | — | — | — |
| 4E | ECU main power (+12V via main relay/ECR) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| 4F | Fuel pump speed relay | — | W34 | — | 0.5 | MAXXECUGEN2R-MX1-7 | — | — | — |
| 4G | Fuel pump relay | — | W35 | — | 0.5 | MAXXECUGEN2R-MX1-8 | — | — | — |
| 4I | A/C relay | — | W36 | — | 0.5 | MAXXECUGEN2R-MX1-17 | — | — | — |
| 4K | Cooling fan relay (low speed) | — | W37 | — | 0.5 | MAXXECUGEN2R-MX2-3 | — | — | — |
| 4L | Cooling fan relay (high speed) | — | W38 | — | 0.5 | MAXXECUGEN2R-MX2-33 | — | — | — |
| 4M | Tachometer output | — | — | — | — | — | — | — | — |
| 4Q | Vehicle speed sensor | — | W54 | — | 0.5 | MAXXECUGEN2R-MX1-23 | — | — | — |
| 4S | Clutch switch | — | W56 | — | 0.5 | MAXXECUGEN2R-MX4-3 | — | — | — |
| 4V | A/C request | — | W57 | — | 0.5 | MAXXECUGEN2R-MX4-6 | — | — | — |
| 4W | Power steering pressure switch | — | W58 | — | 0.5 | MAXXECUGEN2R-MX4-9 | — | — | — |
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 | MAXXECUGEN2R-MX1-14 | — | — | — |
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 | MAXXECUGEN2R-MX1-25 | — | — | — |
| 1 | — | — | W4 | — | 0.85 | MAXXECUGEN2R-MX2-25 | — | — | — |
SP-GND
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W5 | — | 0.85 | OEM-A-1AF | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-A-1AJ | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-A-1L | — | — | — |
| 1 | — | — | W8 | — | 0.85 | MAXXECUGEN2R-MX1-9 | — | — | — |
| 1 | — | — | W9 | — | 0.85 | MAXXECUGEN2R-MX2-9 | — | — | — |
| 1 | — | — | W10 | — | 0.85 | MAXXECUGEN2R-MX3-9 | — | — | — |
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 | MAXXECUGEN2R-MX2-7 | GP out 13 (H-BRIDGE 1) | hbridge_out | single_source | |
| OEM-A-1AB | Sensor ground | sensor_ground | MAXXECUGEN2R-MX1-14 | SENSOR GND | sensor_ground | single_source | |
| OEM-A-1AC | Injector 4 (rear secondary) | injector_out | MAXXECUGEN2R-MX1-34 | INJECTOR 4 | injector_out | single_source | |
| OEM-A-1AE | OMP stepper phase A1 | hbridge_out | MAXXECUGEN2R-MX2-8 | GP out 14 (H-BRIDGE 1) | hbridge_out | single_source | |
| OEM-A-1AF | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | single_source | |
| OEM-A-1AJ | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | single_source | |
| OEM-A-1C | Idle speed control (ISC) solenoid | low_side_out | MAXXECUGEN2R-MX2-34 | INJECTOR 6 | injector_out | single_source | |
| OEM-A-1E | Turbo charge control solenoid | low_side_out | MAXXECUGEN2R-MX3-29 | INJECTOR 7 | injector_out | single_source | |
| OEM-A-1G | Purge solenoid | low_side_out | MAXXECUGEN2R-MX3-30 | INJECTOR 8 | injector_out | single_source | |
| OEM-A-1H | Cooling fan relay (low speed) | low_side_out | MAXXECUGEN2R-MX1-5 | GP out 1 (GND) | low_side_out | single_source | |
| OEM-A-1I | Turbo charge relief solenoid | low_side_out | MAXXECUGEN2R-MX3-31 | INJECTOR 9 | injector_out | single_source | |
| OEM-A-1K | Turbo pre-control solenoid | low_side_out | MAXXECUGEN2R-MX3-32 | INJECTOR 10 | injector_out | single_source | |
| OEM-A-1L | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | single_source | |
| OEM-A-1M | Turbo control solenoid | low_side_out | MAXXECUGEN2R-MX3-33 | INJECTOR 11 | injector_out | single_source | |
| OEM-A-1O | Boost control solenoid | low_side_out | MAXXECUGEN2R-MX3-34 | INJECTOR 12 | injector_out | single_source | |
| OEM-A-1Q | Injector 1 (front primary) | injector_out | MAXXECUGEN2R-MX1-31 | INJECTOR 1 | injector_out | single_source | |
| OEM-A-1S | OMP stepper phase B2 | hbridge_out | MAXXECUGEN2R-MX3-1 | GP out 15 (H-BRIDGE 2) | hbridge_out | single_source | |
| OEM-A-1U | Injector 2 (rear primary) | injector_out | MAXXECUGEN2R-MX1-32 | INJECTOR 2 | injector_out | single_source | |
| OEM-A-1W | OMP stepper phase A2 | hbridge_out | MAXXECUGEN2R-MX3-2 | GP out 16 (H-BRIDGE 2) | hbridge_out | single_source | |
| OEM-A-1X | Sensor ground | sensor_ground | MAXXECUGEN2R-MX1-14 | SENSOR GND | sensor_ground | single_source | |
| OEM-A-1Y | Injector 3 (front secondary) | injector_out | MAXXECUGEN2R-MX1-33 | INJECTOR 3 | injector_out | single_source | |
| OEM-C-3A | +5V sensor supply | vref | MAXXECUGEN2R-MX1-12 | Digital/VR 1 POWER SUPPLY | vref | single_source | |
| OEM-C-3AB | Sensor ground | sensor_ground | MAXXECUGEN2R-MX1-14 | SENSOR GND | sensor_ground | single_source | |
| OEM-C-3D | O2 sensor (narrowband) | lambda_nb_in | MAXXECUGEN2R-MX1-28 | AIN 3 | analog_in | single_source | |
| OEM-C-3G | Fuel pressure regulator control (PRC) solenoid | low_side_out | MAXXECUGEN2R-MX4-31 | INJECTOR 13 | injector_out | single_source | |
| OEM-C-3H | OMP position sensor | analog_in | MAXXECUGEN2R-MX2-5 | AIN 7 | analog_in | single_source | |
| OEM-C-3I | Throttle position (TPS, full range) | analog_in | MAXXECUGEN2R-MX1-27 | AIN 2 | analog_in | single_source | |
| OEM-C-3O | Knock sensor | knock_in | MAXXECUGEN2R-MX2-28 | KNOCK 1+ | knock_in | single_source | |
| OEM-C-3R | Crank position (CAS NE) | trigger_in | MAXXECUGEN2R-MX1-10 | Digital/VR 1 SIGNAL + | trigger_in | single_source | |
| OEM-C-3S | Sensor ground (CAS) | sensor_ground | MAXXECUGEN2R-MX1-14 | SENSOR GND | sensor_ground | single_source | |
| OEM-C-3T | Intake air temperature (IAT) | temp_in | MAXXECUGEN2R-MX1-30 | AIN 5 | analog_in | single_source | |
| OEM-C-3U | Home position (CAS G) | trigger_in | MAXXECUGEN2R-MX1-18 | Digital/VR 2 SIGNAL + | trigger_in | single_source | |
| OEM-C-3V | Fuel temperature | temp_in | MAXXECUGEN2R-MX2-4 | AIN 6 | analog_in | single_source | |
| OEM-C-3W | Coolant temperature (ECT) | temp_in | MAXXECUGEN2R-MX1-29 | AIN 4 | analog_in | single_source | |
| OEM-D-4A | ECU main power (+12V via main relay/ECR) | power_in | MAXXECUGEN2R-MX1-25 + MAXXECUGEN2R-MX2-25 | 12V supply 1 + 12V supply 2 | power_in | single_source | |
| OEM-D-4AA | Brake pedal switch | digital_in | MAXXECUGEN2R-MX1-24 | Digital/VR 4 SIGNAL + | digital_in | single_source | |
| OEM-D-4AF | Ignition front trailing | ignition_out | MAXXECUGEN2R-MX1-1 | Ignition 1 | ignition_out | single_source | |
| OEM-D-4AH | MAP sensor (PIM) | analog_in | MAXXECUGEN2R-MX1-26 | AIN 1 | analog_in | single_source | |
| OEM-D-4AJ | Ignition rear trailing | ignition_out | MAXXECUGEN2R-MX1-2 | Ignition 2 | ignition_out | single_source | |
| OEM-D-4AN | Ignition leading (wasted spark) | ignition_out | MAXXECUGEN2R-MX1-3 | Ignition 3 | ignition_out | single_source | |
| OEM-D-4B | Battery constant (+12V) | power_in | — | — | — | single_source | |
| OEM-D-4C | Ignition switch / start signal | digital_in | MAXXECUGEN2R-MX2-24 | 12V supply 3 | digital_in | single_source | |
| OEM-D-4D | Air pump clutch relay | low_side_out | MAXXECUGEN2R-MX1-6 | GP out 2 (GND) | low_side_out | single_source | |
| OEM-D-4E | ECU main power (+12V via main relay/ECR) | power_in | MAXXECUGEN2R-MX1-25 + MAXXECUGEN2R-MX2-25 | 12V supply 1 + 12V supply 2 | power_in | single_source | |
| OEM-D-4F | Fuel pump speed relay | low_side_out | MAXXECUGEN2R-MX1-7 | GP out 3 (GND) | low_side_out | single_source | |
| OEM-D-4G | Fuel pump relay | low_side_out | MAXXECUGEN2R-MX1-8 | GP out 4 (GND) | low_side_out | single_source | |
| OEM-D-4I | A/C relay | low_side_out | MAXXECUGEN2R-MX1-17 | GP out 5 (GND) | low_side_out | single_source | |
| OEM-D-4K | Cooling fan relay (low speed) | low_side_out | MAXXECUGEN2R-MX2-3 | GP out 6 (GND) | low_side_out | single_source | |
| OEM-D-4L | Cooling fan relay (high speed) | low_side_out | MAXXECUGEN2R-MX2-33 | INJECTOR 5 | injector_out | single_source | |
| OEM-D-4M | Tachometer output | tacho_out | — | — | — | single_source | |
| OEM-D-4Q | Vehicle speed sensor | digital_in | MAXXECUGEN2R-MX1-23 | Digital/VR 3 SIGNAL + | digital_in | single_source | |
| OEM-D-4S | Clutch switch | digital_in | MAXXECUGEN2R-MX4-3 | Digital/VR 5 SIGNAL + | digital_in | single_source | |
| OEM-D-4V | A/C request | digital_in | MAXXECUGEN2R-MX4-6 | Digital/VR 6 SIGNAL + | digital_in | single_source | |
| OEM-D-4W | Power steering pressure switch | digital_in | MAXXECUGEN2R-MX4-9 | Digital/VR 7 SIGNAL + | 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 | MAXXECUGEN2R-MX1-25 | 0.85 | no route | 12V supply 1 | — | |
| W4 | SP-14V-1 | MAXXECUGEN2R-MX2-25 | 0.85 | no route | 12V supply 2 | — | |
| W5 | OEM-A-1AF | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W6 | OEM-A-1AJ | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W7 | OEM-A-1L | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W8 | SP-GND-1 | MAXXECUGEN2R-MX1-9 | 0.85 | no route | Engine gnd | — | |
| W9 | SP-GND-1 | MAXXECUGEN2R-MX2-9 | 0.85 | no route | Engine gnd | — | |
| W10 | SP-GND-1 | MAXXECUGEN2R-MX3-9 | 0.85 | no route | Engine gnd | — | |
| 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 | MAXXECUGEN2R-MX1-14 | 0.5 | no route | SENSOR GND | — | |
| W16 | OEM-C-3A | MAXXECUGEN2R-MX1-12 | 0.5 | no route | +5V sensor supply | — | |
| W17 | OEM-C-3R | MAXXECUGEN2R-MX1-10 | 0.5 | no route | Crank position (CAS NE) | — | |
| W18 | OEM-C-3U | MAXXECUGEN2R-MX1-18 | 0.5 | no route | Home position (CAS G) | — | |
| W19 | OEM-C-3O | MAXXECUGEN2R-MX2-28 | 0.5 | no route | Knock sensor | — | |
| W20 | OEM-D-4AF | MAXXECUGEN2R-MX1-1 | 0.5 | no route | Ignition front trailing | — | |
| W21 | OEM-D-4AJ | MAXXECUGEN2R-MX1-2 | 0.5 | no route | Ignition rear trailing | — | |
| W22 | OEM-D-4AN | MAXXECUGEN2R-MX1-3 | 0.5 | no route | Ignition leading (wasted spark) | — | |
| W23 | OEM-A-1Q | MAXXECUGEN2R-MX1-31 | 0.5 | no route | Injector 1 (front primary) | — | |
| W24 | OEM-A-1U | MAXXECUGEN2R-MX1-32 | 0.5 | no route | Injector 2 (rear primary) | — | |
| W25 | OEM-A-1Y | MAXXECUGEN2R-MX1-33 | 0.5 | no route | Injector 3 (front secondary) | — | |
| W26 | OEM-A-1AC | MAXXECUGEN2R-MX1-34 | 0.5 | no route | Injector 4 (rear secondary) | — | |
| W27 | OEM-D-4C | MAXXECUGEN2R-MX2-24 | 0.5 | no route | Ignition switch / start signal | — | |
| W28 | OEM-A-1AA | MAXXECUGEN2R-MX2-7 | 0.5 | no route | OMP stepper phase B1 | — | |
| W29 | OEM-A-1AE | MAXXECUGEN2R-MX2-8 | 0.5 | no route | OMP stepper phase A1 | — | |
| W30 | OEM-A-1S | MAXXECUGEN2R-MX3-1 | 0.5 | no route | OMP stepper phase B2 | — | |
| W31 | OEM-A-1W | MAXXECUGEN2R-MX3-2 | 0.5 | no route | OMP stepper phase A2 | — | |
| W32 | OEM-A-1H | MAXXECUGEN2R-MX1-5 | 0.5 | no route | Cooling fan relay (low speed) | — | |
| W33 | OEM-D-4D | MAXXECUGEN2R-MX1-6 | 0.5 | no route | Air pump clutch relay | — | |
| W34 | OEM-D-4F | MAXXECUGEN2R-MX1-7 | 0.5 | no route | Fuel pump speed relay | — | |
| W35 | OEM-D-4G | MAXXECUGEN2R-MX1-8 | 0.5 | no route | Fuel pump relay | — | |
| W36 | OEM-D-4I | MAXXECUGEN2R-MX1-17 | 0.5 | no route | A/C relay | — | |
| W37 | OEM-D-4K | MAXXECUGEN2R-MX2-3 | 0.5 | no route | Cooling fan relay (low speed) | — | |
| W38 | OEM-D-4L | MAXXECUGEN2R-MX2-33 | 0.5 | no route | Cooling fan relay (high speed) | — | |
| W39 | OEM-A-1C | MAXXECUGEN2R-MX2-34 | 0.5 | no route | Idle speed control (ISC) solenoid | — | |
| W40 | OEM-A-1E | MAXXECUGEN2R-MX3-29 | 0.5 | no route | Turbo charge control solenoid | — | |
| W41 | OEM-A-1G | MAXXECUGEN2R-MX3-30 | 0.5 | no route | Purge solenoid | — | |
| W42 | OEM-A-1I | MAXXECUGEN2R-MX3-31 | 0.5 | no route | Turbo charge relief solenoid | — | |
| W43 | OEM-A-1K | MAXXECUGEN2R-MX3-32 | 0.5 | no route | Turbo pre-control solenoid | — | |
| W44 | OEM-A-1M | MAXXECUGEN2R-MX3-33 | 0.5 | no route | Turbo control solenoid | — | |
| W45 | OEM-A-1O | MAXXECUGEN2R-MX3-34 | 0.5 | no route | Boost control solenoid | — | |
| W46 | OEM-C-3G | MAXXECUGEN2R-MX4-31 | 0.5 | no route | Fuel pressure regulator control (PRC) solenoid | — | |
| W47 | OEM-D-4AH | MAXXECUGEN2R-MX1-26 | 0.5 | no route | MAP sensor (PIM) | — | |
| W48 | OEM-C-3I | MAXXECUGEN2R-MX1-27 | 0.5 | no route | Throttle position (TPS, full range) | — | |
| W49 | OEM-C-3D | MAXXECUGEN2R-MX1-28 | 0.5 | no route | O2 sensor (narrowband) | — | |
| W50 | OEM-C-3W | MAXXECUGEN2R-MX1-29 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W51 | OEM-C-3T | MAXXECUGEN2R-MX1-30 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W52 | OEM-C-3V | MAXXECUGEN2R-MX2-4 | 0.5 | no route | Fuel temperature | — | |
| W53 | OEM-C-3H | MAXXECUGEN2R-MX2-5 | 0.5 | no route | OMP position sensor | — | |
| W54 | OEM-D-4Q | MAXXECUGEN2R-MX1-23 | 0.5 | no route | Vehicle speed sensor | — | |
| W55 | OEM-D-4AA | MAXXECUGEN2R-MX1-24 | 0.5 | no route | Brake pedal switch | — | |
| W56 | OEM-D-4S | MAXXECUGEN2R-MX4-3 | 0.5 | no route | Clutch switch | — | |
| W57 | OEM-D-4V | MAXXECUGEN2R-MX4-6 | 0.5 | no route | A/C request | — | |
| W58 | OEM-D-4W | MAXXECUGEN2R-MX4-9 | 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 (13)
| Severity | Code | Subject | Message |
|---|---|---|---|
| info | NET_FAMILY | OEM-A-1C ↔ MAXXECUGEN2R-MX2-34 | OEM-A-1C "Idle speed control (ISC) solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX2-34 "INJECTOR 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-1E ↔ MAXXECUGEN2R-MX3-29 | OEM-A-1E "Turbo charge control solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX3-29 "INJECTOR 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-1G ↔ MAXXECUGEN2R-MX3-30 | OEM-A-1G "Purge solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX3-30 "INJECTOR 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-1I ↔ MAXXECUGEN2R-MX3-31 | OEM-A-1I "Turbo charge relief solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX3-31 "INJECTOR 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-1K ↔ MAXXECUGEN2R-MX3-32 | OEM-A-1K "Turbo pre-control solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX3-32 "INJECTOR 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-1M ↔ MAXXECUGEN2R-MX3-33 | OEM-A-1M "Turbo control solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX3-33 "INJECTOR 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-A-1O ↔ MAXXECUGEN2R-MX3-34 | OEM-A-1O "Boost control solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX3-34 "INJECTOR 12" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C-3G ↔ MAXXECUGEN2R-MX4-31 | OEM-C-3G "Fuel pressure regulator control (PRC) solenoid" [low_side_out] is wired to MAXXECUGEN2R-MX4-31 "INJECTOR 13" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-C-3T ↔ MAXXECUGEN2R-MX1-30 | OEM-C-3T "Intake air temperature (IAT)" [temp_in] is wired to MAXXECUGEN2R-MX1-30 "AIN 5" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-C-3V ↔ MAXXECUGEN2R-MX2-4 | OEM-C-3V "Fuel temperature" [temp_in] is wired to MAXXECUGEN2R-MX2-4 "AIN 6" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-C-3W ↔ MAXXECUGEN2R-MX1-29 | OEM-C-3W "Coolant temperature (ECT)" [temp_in] is wired to MAXXECUGEN2R-MX1-29 "AIN 4" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-D-4L ↔ MAXXECUGEN2R-MX2-33 | OEM-D-4L "Cooling fan relay (high speed)" [low_side_out] is wired to MAXXECUGEN2R-MX2-33 "INJECTOR 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | UNMAPPED | OEM | 1 optional OEM pins are not mapped: OEM-D-4M Tachometer output |
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 - Trigger pattern needs a workaround: "Suzuki 13B sequential" in the trigger list — likely a mislabelled Mazda 13B rotary pattern. 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): MaxxECU MaxxECU GEN2 RACE has no battery-constant input; not needed - OEM-D 4M: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU GEN2 RACE
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 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 | — | — | — |
| 4 | vendor_doc | MaxxECU GEN2 pinout (RACE MX1–MX4 / TRACK MX1–MX3) | http://www.maxxecu.com/webhelp/wirings-maxxecu_gen2_pinout.html | archive | 2026-10-05 | f689b8b6b08f |
| 2 | forum | defreezemotorsport: MS3 FD3S 16-bit ECU pinout | https://defreezemotorsport.ru/doku.php?id=ms3:fd3s162 | — | — | — |