MX-5 Miata Mazdaspeed 2004-05 (BP-ZET turbo, no VVT) → MaxxECU MaxxECU GEN2 RACE (auto)
MX-5 Miata Mazdaspeed 2004-05 (BP-ZET turbo, no VVT) — MaxxECU — MaxxECU GEN2 RACE
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-17
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 | proposal · not yet verified: nobody has reported building and running this harness |
|---|---|
| Open errors | none |
| Size of the job | 62 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-2-P | SP-14V-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W2 | OEM-4-AF | 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-3-A | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W6 | OEM-3-B | SP-GND-1 | 0.85 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W7 | OEM-4-A | 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-4-O | SP-0V-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W12 | SP-0V-1 | MAXXECUGEN2R-MX1-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W13 | OEM-4-L | MAXXECUGEN2R-MX1-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W14 | OEM-3-Y | MAXXECUGEN2R-MX1-10 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W15 | OEM-3-V | MAXXECUGEN2R-MX1-18 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W16 | OEM-4-M | MAXXECUGEN2R-MX2-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W17 | OEM-3-F | MAXXECUGEN2R-MX1-1 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W18 | OEM-3-I | MAXXECUGEN2R-MX1-2 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W19 | OEM-2-A | MAXXECUGEN2R-MX1-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W20 | OEM-2-D | MAXXECUGEN2R-MX1-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W21 | OEM-2-G | MAXXECUGEN2R-MX1-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W22 | OEM-2-J | MAXXECUGEN2R-MX1-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W23 | OEM-4-X | MAXXECUGEN2R-MX1-26 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W24 | OEM-4-V | MAXXECUGEN2R-MX1-27 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W25 | OEM-4-P | MAXXECUGEN2R-MX1-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W26 | OEM-4-S | MAXXECUGEN2R-MX2-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W27 | OEM-2-B | MAXXECUGEN2R-MX1-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W28 | OEM-2-C | MAXXECUGEN2R-MX1-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W29 | OEM-2-K | MAXXECUGEN2R-MX1-7 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W30 | OEM-2-M | MAXXECUGEN2R-MX1-8 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W31 | OEM-3-H | MAXXECUGEN2R-MX1-17 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W32 | OEM-2-O | MAXXECUGEN2R-MX2-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W33 | OEM-4-D | MAXXECUGEN2R-MX3-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W34 | OEM-4-E | MAXXECUGEN2R-MX3-15 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W35 | OEM-3-J | MAXXECUGEN2R-MX2-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W36 | OEM-3-P | MAXXECUGEN2R-MX3-12 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W37 | OEM-2-Q | MAXXECUGEN2R-MX2-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W38 | OEM-2-E | MAXXECUGEN2R-MX2-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W39 | OEM-2-F | MAXXECUGEN2R-MX3-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W40 | OEM-2-H | MAXXECUGEN2R-MX3-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W41 | OEM-2-I | MAXXECUGEN2R-MX3-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W42 | OEM-2-N | MAXXECUGEN2R-MX3-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W43 | OEM-2-R | MAXXECUGEN2R-MX3-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W44 | OEM-3-C | MAXXECUGEN2R-MX3-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W45 | OEM-3-K | MAXXECUGEN2R-MX4-31 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W46 | OEM-3-M | MAXXECUGEN2R-MX4-32 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W47 | OEM-3-U | MAXXECUGEN2R-MX4-33 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W48 | OEM-4-AH | MAXXECUGEN2R-MX4-34 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W49 | OEM-4-AE | MAXXECUGEN2R-MX1-29 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W50 | OEM-4-AA | MAXXECUGEN2R-MX1-30 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W51 | OEM-4-W | MAXXECUGEN2R-MX2-4 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W52 | OEM-4-R | MAXXECUGEN2R-MX2-5 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W53 | OEM-4-N | MAXXECUGEN2R-MX2-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W54 | OEM-4-AD | MAXXECUGEN2R-MX2-13 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W55 | OEM-3-T | MAXXECUGEN2R-MX1-23 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W56 | OEM-3-S | MAXXECUGEN2R-MX1-24 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W57 | OEM-4-B | MAXXECUGEN2R-MX4-3 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W58 | OEM-4-C | MAXXECUGEN2R-MX4-6 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W59 | OEM-4-F | MAXXECUGEN2R-MX4-9 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W60 | OEM-4-H | MAXXECUGEN2R-MX4-28 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W61 | OEM-4-I | MAXXECUGEN2R-MX2-14 | 0.5 | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | ☐ | |
| W62 | OEM-4-J | MAXXECUGEN2R-MX2-15 | 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-MX1-14 | open (OL) | 5 V sensor reference must not touch sensor ground | |
| 2 | MAXXECUGEN2R-MX1-25 | MAXXECUGEN2R-MX1-14 | open (OL) | +12 V supply must not touch sensor ground | |
| 3 | MAXXECUGEN2R-MX1-25 | MAXXECUGEN2R-MX1-9 | open (OL) | +12 V supply must not touch power ground | |
| 4 | MAXXECUGEN2R-MX1-25 | MAXXECUGEN2R-MX1-12 | open (OL) | +12 V supply must not touch 5 V sensor reference | |
| 5 | MAXXECUGEN2R-MX1-9 | MAXXECUGEN2R-MX1-12 | 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
MAXXECUGEN2R-MX1
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ignition 1 | — | W17 | — | 0.5 | OEM-3-F | — | — | — |
| 10 | Digital/VR 1 SIGNAL + | — | W14 | — | 0.5 | OEM-3-Y | — | — | — |
| 11 | Digital/VR 1 SIGNAL - | — | — | — | — | — | — | — | — |
| 12 | Digital/VR 1 POWER SUPPLY | — | W13 | — | 0.5 | OEM-4-L | — | — | — |
| 13 | Digital/VR 1 SHIELD | — | — | — | — | — | — | — | — |
| 14 | SENSOR GND | — | W12 | — | 0.5 | SP-0V-1 | — | — | — |
| 15 | CAN L | — | — | — | — | — | — | — | — |
| 16 | CAN H | — | — | — | — | — | — | — | — |
| 17 | GP out 5 (GND) | — | W31 | — | 0.5 | OEM-3-H | — | — | — |
| 18 | Digital/VR 2 SIGNAL + | — | W15 | — | 0.5 | OEM-3-V | — | — | — |
| 19 | Digital/VR 2 SIGNAL - | — | — | — | — | — | — | — | — |
| 2 | Ignition 2 | — | W18 | — | 0.5 | OEM-3-I | — | — | — |
| 20 | Digital/VR 2 POWER SUPPLY | — | — | — | — | — | — | — | — |
| 21 | Digital/VR 2 SHIELD | — | — | — | — | — | — | — | — |
| 22 | 5V power supply | — | — | — | — | — | — | — | — |
| 23 | Digital/VR 3 SIGNAL + | — | W55 | — | 0.5 | OEM-3-T | — | — | — |
| 24 | Digital/VR 4 SIGNAL + | — | W56 | — | 0.5 | OEM-3-S | — | — | — |
| 25 | 12V supply 1 | — | W3 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | AIN 1 | — | W23 | — | 0.5 | OEM-4-X | — | — | — |
| 27 | AIN 2 | — | W24 | — | 0.5 | OEM-4-V | — | — | — |
| 28 | AIN 3 | — | W25 | — | 0.5 | OEM-4-P | — | — | — |
| 29 | AIN 4 | — | W49 | — | 0.5 | OEM-4-AE | — | — | — |
| 3 | Ignition 3 | — | — | — | — | — | — | — | — |
| 30 | AIN 5 | — | W50 | — | 0.5 | OEM-4-AA | — | — | — |
| 31 | INJECTOR 1 | — | W19 | — | 0.5 | OEM-2-A | — | — | — |
| 32 | INJECTOR 2 | — | W20 | — | 0.5 | OEM-2-D | — | — | — |
| 33 | INJECTOR 3 | — | W21 | — | 0.5 | OEM-2-G | — | — | — |
| 34 | INJECTOR 4 | — | W22 | — | 0.5 | OEM-2-J | — | — | — |
| 4 | Ignition 4 | — | — | — | — | — | — | — | — |
| 5 | GP out 1 (GND) | — | W27 | — | 0.5 | OEM-2-B | — | — | — |
| 6 | GP out 2 (GND) | — | W28 | — | 0.5 | OEM-2-C | — | — | — |
| 7 | GP out 3 (GND) | — | W29 | — | 0.5 | OEM-2-K | — | — | — |
| 8 | GP out 4 (GND) | — | W30 | — | 0.5 | OEM-2-M | — | — | — |
| 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- | — | W35 | — | 0.5 | OEM-3-J | — | — | — |
| 13 | AIN 9 | — | W54 | — | 0.5 | OEM-4-AD | — | — | — |
| 14 | AIN 10 | — | W61 | — | 0.5 | OEM-4-I | — | — | — |
| 15 | AIN 11 | — | W62 | — | 0.5 | OEM-4-J | — | — | — |
| 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 | — | W26 | — | 0.5 | OEM-4-S | — | — | — |
| 25 | 12V supply 2 | — | W4 | — | 0.85 | SP-14V-1 | — | — | — |
| 26 | KNOCK1 SHIELD | — | — | — | — | — | — | — | — |
| 27 | KNOCK 1- | — | — | — | — | — | — | — | — |
| 28 | KNOCK 1+ | — | W16 | — | 0.5 | OEM-4-M | — | — | — |
| 29 | KNOCK 2 SHIELD | — | — | — | — | — | — | — | — |
| 3 | GP out 6 (GND) | — | W32 | — | 0.5 | OEM-2-O | — | — | — |
| 30 | KNOCK 2- | — | — | — | — | — | — | — | — |
| 31 | KNOCK 2+ | — | — | — | — | — | — | — | — |
| 32 | AIN 16 | — | — | — | — | — | — | — | — |
| 33 | INJECTOR 5 | — | W37 | — | 0.5 | OEM-2-Q | — | — | — |
| 34 | INJECTOR 6 | — | W38 | — | 0.5 | OEM-2-E | — | — | — |
| 4 | AIN 6 | — | W51 | — | 0.5 | OEM-4-W | — | — | — |
| 5 | AIN 7 | — | W52 | — | 0.5 | OEM-4-R | — | — | — |
| 6 | AIN 8 | — | W53 | — | 0.5 | OEM-4-N | — | — | — |
| 7 | GP out 13 (H-BRIDGE 1) | — | — | — | — | — | — | — | — |
| 8 | GP out 14 (H-BRIDGE 1) | — | — | — | — | — | — | — | — |
| 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) | — | — | — | — | — | — | — | — |
| 10 | WBO2 sensor 2 VS | — | — | — | — | — | — | — | — |
| 11 | WBO2 sensor 2 COM/VREF | — | — | — | — | — | — | — | — |
| 12 | GP Out 8 (GND) / WBO2 Sensor 2 H- | — | W36 | — | 0.5 | OEM-3-P | — | — | — |
| 13 | WBO2 sensor 2 SHIELD | — | — | — | — | — | — | — | — |
| 14 | GP OUT 9 (12V) | — | W33 | — | 0.5 | OEM-4-D | — | — | — |
| 15 | GP OUT 10 (12V) | — | W34 | — | 0.5 | OEM-4-E | — | — | — |
| 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) | — | — | — | — | — | — | — | — |
| 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 | — | W39 | — | 0.5 | OEM-2-F | — | — | — |
| 3 | Ignition 7 | — | — | — | — | — | — | — | — |
| 30 | INJECTOR 8 | — | W40 | — | 0.5 | OEM-2-H | — | — | — |
| 31 | INJECTOR 9 | — | W41 | — | 0.5 | OEM-2-I | — | — | — |
| 32 | INJECTOR 10 | — | W42 | — | 0.5 | OEM-2-N | — | — | — |
| 33 | INJECTOR 11 | — | W43 | — | 0.5 | OEM-2-R | — | — | — |
| 34 | INJECTOR 12 | — | W44 | — | 0.5 | OEM-3-C | — | — | — |
| 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 + | — | W60 | — | 0.5 | OEM-4-H | — | — | — |
| 29 | CAN 2 L | — | — | — | — | — | — | — | — |
| 3 | Digital/VR 5 SIGNAL + | — | W57 | — | 0.5 | OEM-4-B | — | — | — |
| 30 | CAN 2 H | — | — | — | — | — | — | — | — |
| 31 | INJECTOR 13 | — | W45 | — | 0.5 | OEM-3-K | — | — | — |
| 32 | INJECTOR 14 | — | W46 | — | 0.5 | OEM-3-M | — | — | — |
| 33 | INJECTOR 15 | — | W47 | — | 0.5 | OEM-3-U | — | — | — |
| 34 | INJECTOR 16 | — | W48 | — | 0.5 | OEM-4-AH | — | — | — |
| 4 | Digital/VR 6 SHIELD | — | — | — | — | — | — | — | — |
| 5 | Digital/VR 6 SIGNAL - | — | — | — | — | — | — | — | — |
| 6 | Digital/VR 6 SIGNAL + | — | W58 | — | 0.5 | OEM-4-C | — | — | — |
| 7 | Digital/VR 7 SHIELD | — | — | — | — | — | — | — | — |
| 8 | Digital/VR 7 SIGNAL - | — | — | — | — | — | — | — | — |
| 9 | Digital/VR 7 SIGNAL + | — | W59 | — | 0.5 | OEM-4-F | — | — | — |
OEM-2
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Injector 1 | — | W19 | — | 0.5 | MAXXECUGEN2R-MX1-31 | — | — | — |
| B | Cooling fan relay | — | W27 | — | 0.5 | MAXXECUGEN2R-MX1-5 | — | — | — |
| C | Condenser fan relay | — | W28 | — | 0.5 | MAXXECUGEN2R-MX1-6 | — | — | — |
| D | Injector 2 | — | W20 | — | 0.5 | MAXXECUGEN2R-MX1-32 | — | — | — |
| E | EGR valve | — | W38 | — | 0.5 | MAXXECUGEN2R-MX2-34 | — | — | — |
| F | EGR valve | — | W39 | — | 0.5 | MAXXECUGEN2R-MX3-29 | — | — | — |
| G | Injector 3 | — | W21 | — | 0.5 | MAXXECUGEN2R-MX1-33 | — | — | — |
| H | EGR valve | — | W40 | — | 0.5 | MAXXECUGEN2R-MX3-30 | — | — | — |
| I | EGR valve | — | W41 | — | 0.5 | MAXXECUGEN2R-MX3-31 | — | — | — |
| J | Injector 4 | — | W22 | — | 0.5 | MAXXECUGEN2R-MX1-34 | — | — | — |
| K | A/C clutch relay | — | W29 | — | 0.5 | MAXXECUGEN2R-MX1-7 | — | — | — |
| L | NC | — | — | — | — | — | — | — | — |
| M | Fuel pump relay | — | W30 | — | 0.5 | MAXXECUGEN2R-MX1-8 | — | — | — |
| N | VTCS solenoid (intake butterflies) | — | W42 | — | 0.5 | MAXXECUGEN2R-MX3-32 | — | — | — |
| O | Fuel pump relay (non-immobiliser) | — | W32 | — | 0.5 | MAXXECUGEN2R-MX2-3 | — | — | — |
| P | ISC valve +14V feed | — | W1 | — | 0.85 | SP-14V-1 | — | — | — |
| Q | ISC valve low side | — | W37 | — | 0.5 | MAXXECUGEN2R-MX2-33 | — | — | — |
| R | Malfunction indicator lamp (MIL) | — | W43 | — | 0.5 | MAXXECUGEN2R-MX3-33 | — | — | — |
OEM-3
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W5 | — | 0.85 | SP-GND-1 | — | — | — |
| B | Power ground | — | W6 | — | 0.85 | SP-GND-1 | — | — | — |
| C | Purge solenoid valve | — | W44 | — | 0.5 | MAXXECUGEN2R-MX3-34 | — | — | — |
| D | EGR boost solenoid | — | — | — | — | — | — | — | — |
| E | NC | — | — | — | — | — | — | — | — |
| F | Ignition 1 (coils 1+4, wasted spark) | — | W17 | — | 0.5 | MAXXECUGEN2R-MX1-1 | — | — | — |
| G | NC | — | — | — | — | — | — | — | — |
| H | Main relay | — | W31 | — | 0.5 | MAXXECUGEN2R-MX1-17 | — | — | — |
| I | Ignition 2 (coils 2+3, wasted spark) | — | W18 | — | 0.5 | MAXXECUGEN2R-MX1-2 | — | — | — |
| J | Front O2 heater | — | W35 | — | 0.5 | MAXXECUGEN2R-MX2-12 | — | — | — |
| K | EVAP leak detection pump | — | W45 | — | 0.5 | MAXXECUGEN2R-MX4-31 | — | — | — |
| L | NC | — | — | — | — | — | — | — | — |
| M | Alternator control | — | W46 | — | 0.5 | MAXXECUGEN2R-MX4-32 | — | — | — |
| N | NC | — | — | — | — | — | — | — | — |
| O | Tachometer output | — | — | — | — | — | — | — | — |
| P | Rear O2 heater | — | W36 | — | 0.5 | MAXXECUGEN2R-MX3-12 | — | — | — |
| Q | Data link connector (K-line) | — | — | — | — | — | — | — | — |
| R | NC | — | — | — | — | — | — | — | — |
| S | Immobiliser | — | W56 | — | 0.5 | MAXXECUGEN2R-MX1-24 | — | — | — |
| T | Vehicle speed | — | W55 | — | 0.5 | MAXXECUGEN2R-MX1-23 | — | — | — |
| U | Charge lamp | — | W47 | — | 0.5 | MAXXECUGEN2R-MX4-33 | — | — | — |
| V | Cam position (CMP) | — | W15 | — | 0.5 | MAXXECUGEN2R-MX1-18 | — | — | — |
| W | NC | — | — | — | — | — | — | — | — |
| X | NC | — | — | — | — | — | — | — | — |
| Y | Crank position (CKP) | — | W14 | — | 0.5 | MAXXECUGEN2R-MX1-10 | — | — | — |
| Z | NC | — | — | — | — | — | — | — | — |
OEM-4
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| A | Power ground | — | W7 | — | 0.85 | SP-GND-1 | — | — | — |
| AA | Rear O2 signal | — | W50 | — | 0.5 | MAXXECUGEN2R-MX1-30 | — | — | — |
| AB | NC | — | — | — | — | — | — | — | — |
| AC | Data link connector (DLC TEN, turbo) | — | — | — | — | — | — | — | — |
| AD | Fuel level | — | W54 | — | 0.5 | MAXXECUGEN2R-MX2-13 | — | — | — |
| AE | BARO/MAP sensor (turbo boost pressure) | — | W49 | — | 0.5 | MAXXECUGEN2R-MX1-29 | — | — | — |
| AF | ECU power +14V (main relay) | — | W2 | — | 0.85 | SP-14V-1 | — | — | — |
| AG | Constant +12V | — | — | — | — | — | — | — | — |
| AH | EVAP leak detection pump solenoid valve | — | W48 | — | 0.5 | MAXXECUGEN2R-MX4-34 | — | — | — |
| B | Brake switch | — | W57 | — | 0.5 | MAXXECUGEN2R-MX4-3 | — | — | — |
| C | Power steering pressure switch | — | W58 | — | 0.5 | MAXXECUGEN2R-MX4-6 | — | — | — |
| D | Boost control solenoid (turbo) | — | W33 | — | 0.5 | MAXXECUGEN2R-MX3-14 | — | — | — |
| E | Boost control solenoid (turbo) | — | W34 | — | 0.5 | MAXXECUGEN2R-MX3-15 | — | — | — |
| F | A/C request | — | W59 | — | 0.5 | MAXXECUGEN2R-MX4-9 | — | — | — |
| G | NC | — | — | — | — | — | — | — | — |
| H | Neutral switch | — | W60 | — | 0.5 | MAXXECUGEN2R-MX4-28 | — | — | — |
| I | Clutch switch | — | W61 | — | 0.5 | MAXXECUGEN2R-MX2-14 | — | — | — |
| J | VTCS vacuum switch | — | W62 | — | 0.5 | MAXXECUGEN2R-MX2-15 | — | — | — |
| K | NC | — | — | — | — | — | — | — | — |
| L | +5V sensor supply | — | W13 | — | 0.5 | MAXXECUGEN2R-MX1-12 | — | — | — |
| M | Knock sensor | — | W16 | — | 0.5 | MAXXECUGEN2R-MX2-28 | — | — | — |
| N | Intake air temperature (IAT) | — | W53 | — | 0.5 | MAXXECUGEN2R-MX2-6 | — | — | — |
| O | Signal ground | — | W11 | — | 0.5 | SP-0V-1 | — | — | — |
| P | Coolant temperature (ECT) | — | W25 | — | 0.5 | MAXXECUGEN2R-MX1-28 | — | — | — |
| Q | NC | — | — | — | — | — | — | — | — |
| R | Intake air temperature 2 (IAT2, turbo) | — | W52 | — | 0.5 | MAXXECUGEN2R-MX2-5 | — | — | — |
| S | Ignition switch (IG1) sense | — | W26 | — | 0.5 | MAXXECUGEN2R-MX2-24 | — | — | — |
| T | Generator output voltage (terminal P) | — | — | — | — | — | — | — | — |
| U | NC | — | — | — | — | — | — | — | — |
| V | Throttle position (TPS) | — | W24 | — | 0.5 | MAXXECUGEN2R-MX1-27 | — | — | — |
| W | Front O2 signal | — | W51 | — | 0.5 | MAXXECUGEN2R-MX2-4 | — | — | — |
| X | Mass air flow (MAF) | — | W23 | — | 0.5 | MAXXECUGEN2R-MX1-26 | — | — | — |
| Y | NC | — | — | — | — | — | — | — | — |
| Z | TCM (automatic only) | — | — | — | — | — | — | — | — |
SP-0V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W11 | — | 0.5 | OEM-4-O | — | — | — |
| 1 | — | — | W12 | — | 0.5 | MAXXECUGEN2R-MX1-14 | — | — | — |
SP-14V
| Cavity | Function | Signal | Wire | Colour | Gauge (mm²) | Destination | Terminal | Seal | Plug |
|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | W1 | — | 0.85 | OEM-2-P | — | — | — |
| 1 | — | — | W2 | — | 0.85 | OEM-4-AF | — | — | — |
| 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-3-A | — | — | — |
| 1 | — | — | W6 | — | 0.85 | OEM-3-B | — | — | — |
| 1 | — | — | W7 | — | 0.85 | OEM-4-A | — | — | — |
| 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-2-A | Injector 1 | injector_out | MAXXECUGEN2R-MX1-31 | INJECTOR 1 | injector_out | corroborated | |
| OEM-2-B | Cooling fan relay | low_side_out | MAXXECUGEN2R-MX1-5 | GP out 1 (GND) | low_side_out | corroborated | |
| OEM-2-C | Condenser fan relay | low_side_out | MAXXECUGEN2R-MX1-6 | GP out 2 (GND) | low_side_out | corroborated | |
| OEM-2-D | Injector 2 | injector_out | MAXXECUGEN2R-MX1-32 | INJECTOR 2 | injector_out | corroborated | |
| OEM-2-E | EGR valve | low_side_out | MAXXECUGEN2R-MX2-34 | INJECTOR 6 | injector_out | corroborated | |
| OEM-2-F | EGR valve | low_side_out | MAXXECUGEN2R-MX3-29 | INJECTOR 7 | injector_out | corroborated | |
| OEM-2-G | Injector 3 | injector_out | MAXXECUGEN2R-MX1-33 | INJECTOR 3 | injector_out | corroborated | |
| OEM-2-H | EGR valve | low_side_out | MAXXECUGEN2R-MX3-30 | INJECTOR 8 | injector_out | corroborated | |
| OEM-2-I | EGR valve | low_side_out | MAXXECUGEN2R-MX3-31 | INJECTOR 9 | injector_out | corroborated | |
| OEM-2-J | Injector 4 | injector_out | MAXXECUGEN2R-MX1-34 | INJECTOR 4 | injector_out | corroborated | |
| OEM-2-K | A/C clutch relay | low_side_out | MAXXECUGEN2R-MX1-7 | GP out 3 (GND) | low_side_out | corroborated | |
| OEM-2-L | NC | — | — | — | — | single_source | |
| OEM-2-M | Fuel pump relay | low_side_out | MAXXECUGEN2R-MX1-8 | GP out 4 (GND) | low_side_out | corroborated | |
| OEM-2-N | VTCS solenoid (intake butterflies) | low_side_out | MAXXECUGEN2R-MX3-32 | INJECTOR 10 | injector_out | corroborated | |
| OEM-2-O | Fuel pump relay (non-immobiliser) | low_side_out | MAXXECUGEN2R-MX2-3 | GP out 6 (GND) | low_side_out | corroborated | |
| OEM-2-P | ISC valve +14V feed | power_in | MAXXECUGEN2R-MX1-25 + MAXXECUGEN2R-MX2-25 | 12V supply 1 + 12V supply 2 | power_in | corroborated | |
| OEM-2-Q | ISC valve low side | low_side_out | MAXXECUGEN2R-MX2-33 | INJECTOR 5 | injector_out | corroborated | |
| OEM-2-R | Malfunction indicator lamp (MIL) | low_side_out | MAXXECUGEN2R-MX3-33 | INJECTOR 11 | injector_out | corroborated | |
| OEM-3-A | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | corroborated | |
| OEM-3-B | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | corroborated | |
| OEM-3-C | Purge solenoid valve | low_side_out | MAXXECUGEN2R-MX3-34 | INJECTOR 12 | injector_out | corroborated | |
| OEM-3-D | EGR boost solenoid | — | — | — | — | conflict | |
| OEM-3-E | NC | — | — | — | — | single_source | |
| OEM-3-F | Ignition 1 (coils 1+4, wasted spark) | ignition_out | MAXXECUGEN2R-MX1-1 | Ignition 1 | ignition_out | corroborated | |
| OEM-3-G | NC | — | — | — | — | single_source | |
| OEM-3-H | Main relay | low_side_out | MAXXECUGEN2R-MX1-17 | GP out 5 (GND) | low_side_out | corroborated | |
| OEM-3-I | Ignition 2 (coils 2+3, wasted spark) | ignition_out | MAXXECUGEN2R-MX1-2 | Ignition 2 | ignition_out | corroborated | |
| OEM-3-J | Front O2 heater | low_side_out | MAXXECUGEN2R-MX2-12 | GP OUT 7 / WBO2 Sensor 1 H- | low_side_out | corroborated | |
| OEM-3-K | EVAP leak detection pump | low_side_out | MAXXECUGEN2R-MX4-31 | INJECTOR 13 | injector_out | corroborated | |
| OEM-3-L | NC | — | — | — | — | single_source | |
| OEM-3-M | Alternator control | low_side_out | MAXXECUGEN2R-MX4-32 | INJECTOR 14 | injector_out | corroborated | |
| OEM-3-N | NC | — | — | — | — | single_source | |
| OEM-3-O | Tachometer output | tacho_out | — | — | — | corroborated | |
| OEM-3-P | Rear O2 heater | low_side_out | MAXXECUGEN2R-MX3-12 | GP Out 8 (GND) / WBO2 Sensor 2 H- | low_side_out | corroborated | |
| OEM-3-Q | Data link connector (K-line) | serial | — | — | — | corroborated | |
| OEM-3-R | NC | — | — | — | — | single_source | |
| OEM-3-S | Immobiliser | digital_in | MAXXECUGEN2R-MX1-24 | Digital/VR 4 SIGNAL + | digital_in | corroborated | |
| OEM-3-T | Vehicle speed | digital_in | MAXXECUGEN2R-MX1-23 | Digital/VR 3 SIGNAL + | digital_in | corroborated | |
| OEM-3-U | Charge lamp | low_side_out | MAXXECUGEN2R-MX4-33 | INJECTOR 15 | injector_out | corroborated | |
| OEM-3-V | Cam position (CMP) | trigger_in | MAXXECUGEN2R-MX1-18 | Digital/VR 2 SIGNAL + | trigger_in | corroborated | |
| OEM-3-W | NC | — | — | — | — | single_source | |
| OEM-3-X | NC | — | — | — | — | single_source | |
| OEM-3-Y | Crank position (CKP) | trigger_in | MAXXECUGEN2R-MX1-10 | Digital/VR 1 SIGNAL + | trigger_in | corroborated | |
| OEM-3-Z | NC | — | — | — | — | single_source | |
| OEM-4-A | Power ground | ground | MAXXECUGEN2R-MX1-9 + MAXXECUGEN2R-MX2-9 + MAXXECUGEN2R-MX3-9 | Engine gnd + Engine gnd + Engine gnd | ground | corroborated | |
| OEM-4-AA | Rear O2 signal | lambda_nb_in | MAXXECUGEN2R-MX1-30 | AIN 5 | analog_in | corroborated | |
| OEM-4-AB | NC | — | — | — | — | single_source | |
| OEM-4-AC | Data link connector (DLC TEN, turbo) | serial | — | — | — | BrY | single_source |
| OEM-4-AD | Fuel level | analog_in | MAXXECUGEN2R-MX2-13 | AIN 9 | analog_in | corroborated | |
| OEM-4-AE | BARO/MAP sensor (turbo boost pressure) | analog_in | MAXXECUGEN2R-MX1-29 | AIN 4 | analog_in | LY | single_source |
| OEM-4-AF | ECU power +14V (main relay) | power_in | MAXXECUGEN2R-MX1-25 + MAXXECUGEN2R-MX2-25 | 12V supply 1 + 12V supply 2 | power_in | corroborated | |
| OEM-4-AG | Constant +12V | power_in | — | — | — | corroborated | |
| OEM-4-AH | EVAP leak detection pump solenoid valve | low_side_out | MAXXECUGEN2R-MX4-34 | INJECTOR 16 | injector_out | corroborated | |
| OEM-4-B | Brake switch | digital_in | MAXXECUGEN2R-MX4-3 | Digital/VR 5 SIGNAL + | digital_in | corroborated | |
| OEM-4-C | Power steering pressure switch | digital_in | MAXXECUGEN2R-MX4-6 | Digital/VR 6 SIGNAL + | digital_in | corroborated | |
| OEM-4-D | Boost control solenoid (turbo) | high_side_out | MAXXECUGEN2R-MX3-14 | GP OUT 9 (12V) | high_side_out | Y | single_source |
| OEM-4-E | Boost control solenoid (turbo) | high_side_out | MAXXECUGEN2R-MX3-15 | GP OUT 10 (12V) | high_side_out | Y | single_source |
| OEM-4-F | A/C request | digital_in | MAXXECUGEN2R-MX4-9 | Digital/VR 7 SIGNAL + | digital_in | corroborated | |
| OEM-4-G | NC | — | — | — | — | single_source | |
| OEM-4-H | Neutral switch | digital_in | MAXXECUGEN2R-MX4-28 | Digital/VR 8 SIGNAL + | digital_in | corroborated | |
| OEM-4-I | Clutch switch | digital_in | MAXXECUGEN2R-MX2-14 | AIN 10 | analog_in | corroborated | |
| OEM-4-J | VTCS vacuum switch | digital_in | MAXXECUGEN2R-MX2-15 | AIN 11 | analog_in | corroborated | |
| OEM-4-K | NC | — | — | — | — | single_source | |
| OEM-4-L | +5V sensor supply | vref | MAXXECUGEN2R-MX1-12 | Digital/VR 1 POWER SUPPLY | vref | corroborated | |
| OEM-4-M | Knock sensor | knock_in | MAXXECUGEN2R-MX2-28 | KNOCK 1+ | knock_in | corroborated | |
| OEM-4-N | Intake air temperature (IAT) | temp_in | MAXXECUGEN2R-MX2-6 | AIN 8 | analog_in | corroborated | |
| OEM-4-O | Signal ground | sensor_ground | MAXXECUGEN2R-MX1-14 | SENSOR GND | sensor_ground | corroborated | |
| OEM-4-P | Coolant temperature (ECT) | temp_in | MAXXECUGEN2R-MX1-28 | AIN 3 | analog_in | corroborated | |
| OEM-4-Q | NC | — | — | — | — | single_source | |
| OEM-4-R | Intake air temperature 2 (IAT2, turbo) | temp_in | MAXXECUGEN2R-MX2-5 | AIN 7 | analog_in | VY | single_source |
| OEM-4-S | Ignition switch (IG1) sense | digital_in | MAXXECUGEN2R-MX2-24 | 12V supply 3 | digital_in | corroborated | |
| OEM-4-T | Generator output voltage (terminal P) | — | — | — | — | corroborated | |
| OEM-4-U | NC | — | — | — | — | single_source | |
| OEM-4-V | Throttle position (TPS) | analog_in | MAXXECUGEN2R-MX1-27 | AIN 2 | analog_in | corroborated | |
| OEM-4-W | Front O2 signal | lambda_nb_in | MAXXECUGEN2R-MX2-4 | AIN 6 | analog_in | corroborated | |
| OEM-4-X | Mass air flow (MAF) | analog_in | MAXXECUGEN2R-MX1-26 | AIN 1 | analog_in | corroborated | |
| OEM-4-Y | NC | — | — | — | — | single_source | |
| OEM-4-Z | TCM (automatic only) | — | — | — | — | corroborated |
Cut list
| Wire | From | To | Gauge (mm²) | Colour | Length | Signal | Ident |
|---|---|---|---|---|---|---|---|
| W1 | OEM-2-P | SP-14V-1 | 0.85 | no route | ISC valve +14V feed | — | |
| W2 | OEM-4-AF | SP-14V-1 | 0.85 | no route | ECU power +14V (main relay) | — | |
| 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-3-A | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W6 | OEM-3-B | SP-GND-1 | 0.85 | no route | Power ground | — | |
| W7 | OEM-4-A | 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-4-O | SP-0V-1 | 0.5 | no route | Signal ground | — | |
| W12 | SP-0V-1 | MAXXECUGEN2R-MX1-14 | 0.5 | no route | SENSOR GND | — | |
| W13 | OEM-4-L | MAXXECUGEN2R-MX1-12 | 0.5 | no route | +5V sensor supply | — | |
| W14 | OEM-3-Y | MAXXECUGEN2R-MX1-10 | 0.5 | no route | Crank position (CKP) | — | |
| W15 | OEM-3-V | MAXXECUGEN2R-MX1-18 | 0.5 | no route | Cam position (CMP) | — | |
| W16 | OEM-4-M | MAXXECUGEN2R-MX2-28 | 0.5 | no route | Knock sensor | — | |
| W17 | OEM-3-F | MAXXECUGEN2R-MX1-1 | 0.5 | no route | Ignition 1 (coils 1+4, wasted spark) | — | |
| W18 | OEM-3-I | MAXXECUGEN2R-MX1-2 | 0.5 | no route | Ignition 2 (coils 2+3, wasted spark) | — | |
| W19 | OEM-2-A | MAXXECUGEN2R-MX1-31 | 0.5 | no route | Injector 1 | — | |
| W20 | OEM-2-D | MAXXECUGEN2R-MX1-32 | 0.5 | no route | Injector 2 | — | |
| W21 | OEM-2-G | MAXXECUGEN2R-MX1-33 | 0.5 | no route | Injector 3 | — | |
| W22 | OEM-2-J | MAXXECUGEN2R-MX1-34 | 0.5 | no route | Injector 4 | — | |
| W23 | OEM-4-X | MAXXECUGEN2R-MX1-26 | 0.5 | no route | Mass air flow (MAF) | — | |
| W24 | OEM-4-V | MAXXECUGEN2R-MX1-27 | 0.5 | no route | Throttle position (TPS) | — | |
| W25 | OEM-4-P | MAXXECUGEN2R-MX1-28 | 0.5 | no route | Coolant temperature (ECT) | — | |
| W26 | OEM-4-S | MAXXECUGEN2R-MX2-24 | 0.5 | no route | Ignition switch (IG1) sense | — | |
| W27 | OEM-2-B | MAXXECUGEN2R-MX1-5 | 0.5 | no route | Cooling fan relay | — | |
| W28 | OEM-2-C | MAXXECUGEN2R-MX1-6 | 0.5 | no route | Condenser fan relay | — | |
| W29 | OEM-2-K | MAXXECUGEN2R-MX1-7 | 0.5 | no route | A/C clutch relay | — | |
| W30 | OEM-2-M | MAXXECUGEN2R-MX1-8 | 0.5 | no route | Fuel pump relay | — | |
| W31 | OEM-3-H | MAXXECUGEN2R-MX1-17 | 0.5 | no route | Main relay | — | |
| W32 | OEM-2-O | MAXXECUGEN2R-MX2-3 | 0.5 | no route | Fuel pump relay (non-immobiliser) | — | |
| W33 | OEM-4-D | MAXXECUGEN2R-MX3-14 | 0.5 | no route | Boost control solenoid (turbo) | — | |
| W34 | OEM-4-E | MAXXECUGEN2R-MX3-15 | 0.5 | no route | Boost control solenoid (turbo) | — | |
| W35 | OEM-3-J | MAXXECUGEN2R-MX2-12 | 0.5 | no route | Front O2 heater | — | |
| W36 | OEM-3-P | MAXXECUGEN2R-MX3-12 | 0.5 | no route | Rear O2 heater | — | |
| W37 | OEM-2-Q | MAXXECUGEN2R-MX2-33 | 0.5 | no route | ISC valve low side | — | |
| W38 | OEM-2-E | MAXXECUGEN2R-MX2-34 | 0.5 | no route | EGR valve | — | |
| W39 | OEM-2-F | MAXXECUGEN2R-MX3-29 | 0.5 | no route | EGR valve | — | |
| W40 | OEM-2-H | MAXXECUGEN2R-MX3-30 | 0.5 | no route | EGR valve | — | |
| W41 | OEM-2-I | MAXXECUGEN2R-MX3-31 | 0.5 | no route | EGR valve | — | |
| W42 | OEM-2-N | MAXXECUGEN2R-MX3-32 | 0.5 | no route | VTCS solenoid (intake butterflies) | — | |
| W43 | OEM-2-R | MAXXECUGEN2R-MX3-33 | 0.5 | no route | Malfunction indicator lamp (MIL) | — | |
| W44 | OEM-3-C | MAXXECUGEN2R-MX3-34 | 0.5 | no route | Purge solenoid valve | — | |
| W45 | OEM-3-K | MAXXECUGEN2R-MX4-31 | 0.5 | no route | EVAP leak detection pump | — | |
| W46 | OEM-3-M | MAXXECUGEN2R-MX4-32 | 0.5 | no route | Alternator control | — | |
| W47 | OEM-3-U | MAXXECUGEN2R-MX4-33 | 0.5 | no route | Charge lamp | — | |
| W48 | OEM-4-AH | MAXXECUGEN2R-MX4-34 | 0.5 | no route | EVAP leak detection pump solenoid valve | — | |
| W49 | OEM-4-AE | MAXXECUGEN2R-MX1-29 | 0.5 | no route | BARO/MAP sensor (turbo boost pressure) | — | |
| W50 | OEM-4-AA | MAXXECUGEN2R-MX1-30 | 0.5 | no route | Rear O2 signal | — | |
| W51 | OEM-4-W | MAXXECUGEN2R-MX2-4 | 0.5 | no route | Front O2 signal | — | |
| W52 | OEM-4-R | MAXXECUGEN2R-MX2-5 | 0.5 | no route | Intake air temperature 2 (IAT2, turbo) | — | |
| W53 | OEM-4-N | MAXXECUGEN2R-MX2-6 | 0.5 | no route | Intake air temperature (IAT) | — | |
| W54 | OEM-4-AD | MAXXECUGEN2R-MX2-13 | 0.5 | no route | Fuel level | — | |
| W55 | OEM-3-T | MAXXECUGEN2R-MX1-23 | 0.5 | no route | Vehicle speed | — | |
| W56 | OEM-3-S | MAXXECUGEN2R-MX1-24 | 0.5 | no route | Immobiliser | — | |
| W57 | OEM-4-B | MAXXECUGEN2R-MX4-3 | 0.5 | no route | Brake switch | — | |
| W58 | OEM-4-C | MAXXECUGEN2R-MX4-6 | 0.5 | no route | Power steering pressure switch | — | |
| W59 | OEM-4-F | MAXXECUGEN2R-MX4-9 | 0.5 | no route | A/C request | — | |
| W60 | OEM-4-H | MAXXECUGEN2R-MX4-28 | 0.5 | no route | Neutral switch | — | |
| W61 | OEM-4-I | MAXXECUGEN2R-MX2-14 | 0.5 | no route | Clutch switch | — | |
| W62 | OEM-4-J | MAXXECUGEN2R-MX2-15 | 0.5 | no route | VTCS vacuum 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 (18)
| Severity | Code | Subject | Message |
|---|---|---|---|
| warn | NET_FAMILY | OEM-4-I ↔ MAXXECUGEN2R-MX2-14 | OEM-4-I "Clutch switch" [digital_in] is wired to MAXXECUGEN2R-MX2-14 "AIN 10" [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. |
| warn | NET_FAMILY | OEM-4-J ↔ MAXXECUGEN2R-MX2-15 | OEM-4-J "VTCS vacuum switch" [digital_in] is wired to MAXXECUGEN2R-MX2-15 "AIN 11" [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-2-E ↔ MAXXECUGEN2R-MX2-34 | OEM-2-E "EGR valve" [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-2-F ↔ MAXXECUGEN2R-MX3-29 | OEM-2-F "EGR valve" [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-2-H ↔ MAXXECUGEN2R-MX3-30 | OEM-2-H "EGR valve" [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-2-I ↔ MAXXECUGEN2R-MX3-31 | OEM-2-I "EGR valve" [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-2-N ↔ MAXXECUGEN2R-MX3-32 | OEM-2-N "VTCS solenoid (intake butterflies)" [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-2-Q ↔ MAXXECUGEN2R-MX2-33 | OEM-2-Q "ISC valve low side" [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 | NET_FAMILY | OEM-2-R ↔ MAXXECUGEN2R-MX3-33 | OEM-2-R "Malfunction indicator lamp (MIL)" [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-3-C ↔ MAXXECUGEN2R-MX3-34 | OEM-3-C "Purge solenoid valve" [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-3-K ↔ MAXXECUGEN2R-MX4-31 | OEM-3-K "EVAP leak detection pump" [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-3-M ↔ MAXXECUGEN2R-MX4-32 | OEM-3-M "Alternator control" [low_side_out] is wired to MAXXECUGEN2R-MX4-32 "INJECTOR 14" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-3-U ↔ MAXXECUGEN2R-MX4-33 | OEM-3-U "Charge lamp" [low_side_out] is wired to MAXXECUGEN2R-MX4-33 "INJECTOR 15" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-4-AH ↔ MAXXECUGEN2R-MX4-34 | OEM-4-AH "EVAP leak detection pump solenoid valve" [low_side_out] is wired to MAXXECUGEN2R-MX4-34 "INJECTOR 16" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency. |
| info | NET_FAMILY | OEM-4-N ↔ MAXXECUGEN2R-MX2-6 | OEM-4-N "Intake air temperature (IAT)" [temp_in] is wired to MAXXECUGEN2R-MX2-6 "AIN 8" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-4-P ↔ MAXXECUGEN2R-MX1-28 | OEM-4-P "Coolant temperature (ECT)" [temp_in] is wired to MAXXECUGEN2R-MX1-28 "AIN 3" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | NET_FAMILY | OEM-4-R ↔ MAXXECUGEN2R-MX2-5 | OEM-4-R "Intake air temperature 2 (IAT2, turbo)" [temp_in] is wired to MAXXECUGEN2R-MX2-5 "AIN 7" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one. |
| info | UNMAPPED | OEM | 6 optional OEM pins are not mapped: OEM-3-D EGR boost solenoid; OEM-3-O Tachometer output; OEM-3-Q Data link connector (K-line); OEM-4-AC Data link connector (DLC TEN, turbo); OEM-4-T Generator output voltage (terminal P); OEM-4-Z TCM (automatic only) |
Accepted (1)
| Code | Subject | Reason | By |
|---|---|---|---|
| REQUIRED_UNMAPPED | OEM-4-AG | 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 2026-10-17. Review every wire against both manuals before building. Not wired: - OEM-4 AG: Constant +12V: MaxxECU MaxxECU GEN2 RACE has no battery-constant input; not needed - OEM-3 O: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU GEN2 RACE - OEM-3 Q: Data link connector (K-line): no free k_line on MaxxECU MaxxECU GEN2 RACE - OEM-4 AC: Data link connector (DLC TEN, turbo): no free k_line on MaxxECU MaxxECU GEN2 RACE - OEM-3 D: EGR boost solenoid: not classified in the library; wire by hand - OEM-4 T: Generator output voltage (terminal P): not classified in the library; wire by hand - OEM-4 Z: TCM (automatic only): not classified in the library; wire by hand
Sources
| Reliability | Kind | Title | URL | Archive | Captured | SHA-256 |
|---|---|---|---|---|---|---|
| 4 | oem_manual | 2005 Mazda MX-5 Miata Engine Performance Control System (PCM terminal voltage reference, BP and BP WITH TC) | https://trull.org/alex/pubmirror/www.mellens.net/mazda/Mazda-Miata-2005/engine_control_system.pdf | — | — | — |
| 4 | vendor_doc | Adaptronic eSel039 Select Plugin ECU for Mazda MX5 / Miata NB8B/C (OEM ECU pinout) | https://www.miataturbo.net/attachments/ecus-tuning-54/04-msm-ecu-pinout-104032/nb8bc_oem_ecu_pinouts-224948d1602912806 | — | — | — |
| 4 | vendor_doc | Link G4X MX5NB2X install manual (NB2 2001-05) | https://linkecu.com/documentation/MX5XNB2.pdf | archive | 2026-10-05 | 741efdd9f2c8 |
| 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 |