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-T121
face not drawn
| Point | Signal | Family | Evidence | Destination |
|---|---|---|---|---|
| Ground | corroborated· Community | SP-GND-1 | ||
| Ground | corroborated· Community | SP-GND-1 | ||
| Digital in | corroborated· Community | not connected | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-36Idle 2 (3-wire idle) | ||
| Low-side out | corroborated· Community | not connected | ||
| Power in | corroborated· Community | not connected | ||
| Power in | corroborated· Community | not connected | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Analog in | corroborated· Community | SPEEDUINO-A-22TPS input | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Analog in | corroborated· Community | not connected | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Tacho out | corroborated· Community | SPEEDUINO-A-17Proto area 4 (tachometer) | ||
| Serial | corroborated· Community | not connected | ||
| Low-side out | corroborated· Community | not connected | ||
| Low-side out | corroborated· Community | not connected | ||
| Wideband Ip | corroborated· Community | not connected | ||
| Wideband Ip | corroborated· Community | not connected | ||
| Analog in | corroborated· Community | not connected | ||
| Digital in | corroborated· Community | SPEEDUINO-A-14Proto area 1 (flex fuel) | ||
| CAN low | corroborated· Community | not connected | ||
| CAN high | corroborated· Community | not connected | ||
| Power in | corroborated· Community | not connected | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-35Boost | ||
| Low-side out | corroborated· Community | not connected | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-16Proto area 3 (fuel pump) | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-15Proto area 2 (fan) | ||
| O2 narrowband | corroborated· Community | SPEEDUINO-A-21O2 sensor | ||
| O2 narrowband | corroborated· Community | not connected | ||
| Wideband Vs | corroborated· Community | not connected | ||
| Wideband Vs | corroborated· Community | not connected | ||
| 5V / 8V ref | corroborated· Community | SP-5V1-1 | ||
| 5V / 8V ref | corroborated· Community | SP-5V2-1 | ||
| Crank / cam | corroborated· Community | SPEEDUINO-A-25Crank input / VR1+ | ||
| 5V / 8V ref | corroborated· Community | SP-5V1-1 | ||
| Analog in | corroborated· Community | not connected | ||
| Temp in | corroborated· Community | SPEEDUINO-A-20Inlet air temp (IAT) | ||
| Crank / cam | corroborated· Community | SPEEDUINO-A-24Cam input / VR2+ | ||
| Injector | corroborated· Community | SPEEDUINO-A-5Injector 4 | ||
| Injector | corroborated· Community | SPEEDUINO-A-2Injector 2 | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Analog in | corroborated· Community | not connected | ||
| Temp in | corroborated· Community | SPEEDUINO-A-19Coolant temp (CLT) | ||
| Ignition | corroborated· Community | SPEEDUINO-A-8Ignition 4 | ||
| Ignition | corroborated· Community | SPEEDUINO-A-34Ignition 2 | ||
| Injector | corroborated· Community | SPEEDUINO-A-1Injector 1 | ||
| Injector | corroborated· Community | SPEEDUINO-A-3Injector 3 | ||
| 5V / 8V ref | corroborated· Community | SP-5V2-1 | ||
| 5V / 8V ref | corroborated· Community | SP-5V1-1 | ||
| Analog in | corroborated· Community | SPEEDUINO-A-11MAP sensor (0-5V) | ||
| Ignition | corroborated· Community | SPEEDUINO-A-7Ignition 1 | ||
| Ignition | corroborated· Community | SPEEDUINO-A-33Ignition 3 | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-37PWM idle | ||
| Low-side out | corroborated· Community | SPEEDUINO-A-38VVT | ||
| Knock | corroborated· Community | not connected | ||
| Knock | corroborated· Community | not connected | ||
| Sensor ground | corroborated· Community | SP-0V-1 | ||
| Low-side out | corroborated· Community | not connected | ||
| H-bridge | corroborated· Community | SPEEDUINO-A-31Idle stepper 1A | ||
| H-bridge | corroborated· Community | SPEEDUINO-A-32Idle stepper 1B | ||
| Power in | corroborated· Community | not connected |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with