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-A
face not drawn
| Point | Signal | Family | Evidence | Destination |
|---|---|---|---|---|
| Digital in | corroborated· Community | SPEEDUINO-A-18Proto area 5 (clutch) | ||
| O2 narrowband | corroborated· Community | SPEEDUINO-A-21O2 sensor | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-16Proto area 3 (fuel pump) | ||
| Knock | corroborated· Community | not connected | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Shield | corroborated· Community | not connected | ||
| Power in | corroborated· Community | not connected | ||
| Temp in | corroborated· Community | SPEEDUINO-A-20Inlet air temp (IAT) | ||
| Temp in | corroborated· Community | SPEEDUINO-A-19Coolant temp (CLT) | ||
| Digital in | corroborated· Community | SPEEDUINO-A-14Proto area 1 (flex fuel) | ||
| Injector | corroborated· Community | SPEEDUINO-A-1Injector 1 | ||
| Ground | corroborated· Community | SP-GND-1 | ||
| Power in | corroborated· Community | not connected | ||
| Digital in | corroborated· Community | not connected | ||
| 5V / 8V ref | corroborated· Community | SPEEDUINO-A-135V | ||
| Crank / cam | corroborated· Community | SPEEDUINO-A-24Cam input / VR2+ | ||
| Ground | corroborated· Community | SP-GND-1 | ||
| Analog in | corroborated· Community | not connected | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-36Idle 2 (3-wire idle) | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-37PWM idle | ||
| Ignition | corroborated· Community | SPEEDUINO-A-7Ignition 1 |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with