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 | SL4-A-3Injection channel 3 | ||
| Injector | single_source· Community | SL4-A-4Injection channel 4 | ||
| Injector | single_source· Community | SL4-A-1Injection channel 1 | ||
| Injector | single_source· Community | SL4-A-2Injection channel 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 | SL4-B-7Sync sensor + | ||
| Ignition | single_source· Community | SL4-A-26Ignition channel 1 | ||
| Ignition | single_source· Community | SL4-A-27Ignition channel 2 | ||
| Ignition | single_source· Community | SL4-A-28Ignition channel 3 | ||
| Low-side out | single_source· Community | not connected | ||
| Low-side out | single_source· Community | SL4-B-3EFI relay output (low side, 200 mA) | ||
| Low-side out | single_source· Community | SL4-A-14Auxiliary output 5 | ||
| Low-side out | single_source· Community | SL4-A-15Auxiliary output 6 | ||
| Low-side out | single_source· Community | SL4-A-16Auxiliary output 7 | ||
| Ground | single_source· Community | SP-GND-1 | ||
| Sensor ground | single_source· Community | SP-0V-1 | ||
| Crank / cam | single_source· Community | SL4-B-5Crank index sensor + | ||
| Digital in | single_source· Community | not connected | ||
| Digital in | single_source· Community | SL4-A-23Digital input 4 | ||
| Knock | single_source· Community | SL4-B-24Knock 2 + | ||
| Knock | single_source· Community | SL4-B-16Knock 1 + | ||
| Shield | single_source· Community | SP-SHD-1 | ||
| Ground | single_source· Community | SP-GND-1 |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with