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.
Connectors
OEM-B74
face not drawn
| Point | Signal | Family | Evidence | Destination |
|---|---|---|---|---|
| Injector | single_source· Community | T4-C1-34Injector 3 | ||
| Injector | single_source· Community | T4-C1-25Injector 4 | ||
| Injector | single_source· Community | T4-C1-9Injector 1 | ||
| Injector | single_source· Community | T4-C1-17Injector 2 | ||
| Low-side out | single_source· Community | not connected | ||
| H-bridge | single_source· Community | not connected | ||
| H-bridge | single_source· Community | not connected | ||
| Ground | single_source· Community | SP-GND-1 | ||
| Crank / cam | single_source· Community | T4-C2-22Cam 1 | ||
| Ignition | single_source· Community | T4-C1-10Coil 1 | ||
| Ignition | single_source· Community | T4-C1-18Coil 2 | ||
| Ignition | single_source· Community | T4-C1-1Coil 3 | ||
| Low-side out | single_source· Community | not connected | ||
| Low-side out | single_source· Community | T4-C1-5PWM 1 | ||
| Low-side out | single_source· Community | T4-C1-4PWM 2 | ||
| Low-side out | single_source· Community | T4-C1-3PWM 3 | ||
| Low-side out | single_source· Community | T4-C3-22PWM 4 | ||
| Ground | single_source· Community | SP-GND-1 | ||
| Sensor ground | single_source· Community | SP-0V-1 | ||
| Crank / cam | single_source· Community | T4-C2-12Crank | ||
| Digital in | single_source· Community | T4-C2-16Analogue 11 | ||
| Digital in | single_source· Community | T4-C2-15Digital 5 | ||
| Knock | single_source· Community | not connected | ||
| Knock | single_source· Community | not connected | ||
| Shield | single_source· Community | not connected | ||
| Ground | single_source· Community | SP-GND-1 |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with