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
ME221-C1
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| Point | Signal | Family | Evidence | Destination |
|---|---|---|---|---|
| Ignition | single_source· Vendor | OEM-X2-76Ignition coil 4 control | ||
| Ignition | single_source· Vendor | OEM-X2-77Ignition coil 3 control | ||
| Injector | single_source· Vendor | OEM-X2-39Injector 4OEM-X2-17Injector 8 | ||
| Injector | single_source· Vendor | OEM-X2-37Injector 2OEM-X2-19Injector 6 | ||
| Digital in | single_source· Vendor | OEM-X1-71VSS high signal (manual trans) | ||
| Digital in | single_source· Vendor | OEM-X1-72VSS low signal (manual trans) | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Low-side out | single_source· Vendor | OEM-X1-58Low speed cooling fan relay | ||
| Power out | single_source· Vendor | not connected | ||
| Power in | single_source· Vendor | SP-14V-1 | ||
| Low-side out | single_source· Vendor | OEM-X1-64HO2S heater low control, bank 2 sensor 2 | ||
| Analog in | single_source· Vendor | OEM-X1-29Accelerator pedal position (APP) sensor 1 signal | ||
| Analog in | single_source· Vendor | OEM-X2-65Throttle position sensor 1 signal | ||
| Wideband Vs | single_source· Vendor | not connected | ||
| Wideband Vgnd | single_source· Vendor | not connected | ||
| CAN high | single_source· Vendor | OEM-X1-28High-speed GMLAN serial data bus + (2500) | ||
| Crank / cam | single_source· Vendor | OEM-X2-64Camshaft position signal (4x) | ||
| Crank / cam | single_source· Vendor | not connected | ||
| No data | single_source· Vendor | not connected | ||
| No data | single_source· Vendor | not connected | ||
| Analog in | single_source· Vendor | OEM-X1-41Mass air flow (MAF) signal | ||
| Ignition | single_source· Vendor | OEM-X2-73Ignition coil 2 control | ||
| Ignition | single_source· Vendor | OEM-X2-70Ignition coil 1 control | ||
| Injector | single_source· Vendor | OEM-X2-38Injector 3OEM-X2-40Injector 7 | ||
| No data | single_source· Vendor | not connected | ||
| No data | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-X1-50Fuel pump relay control (primary) | ||
| No data | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-X2-13HO2S heater low control, bank 2 sensor 1 | ||
| No data | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-X1-59Powertrain relay coil control (main relay) | ||
| Low-side out | single_source· Vendor | OEM-X1-51Fuel pump relay control (secondary) | ||
| Low-side out | single_source· Vendor | OEM-X1-65HO2S heater low control, bank 1 sensor 2 | ||
| 5V / 8V ref | single_source· Vendor | SP-5V1-1 | ||
| 5V / 8V ref | single_source· Vendor | not connected | ||
| Wideband cal | single_source· Vendor | not connected | ||
| Wideband Ip | single_source· Vendor | not connected | ||
| CAN low | single_source· Vendor | OEM-X1-27High-speed GMLAN serial data bus - (2501) | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Knock | single_source· Vendor | OEM-X2-26Knock sensor 1 signal A | ||
| No data | single_source· Vendor | not connected | ||
| Analog in | single_source· Vendor | OEM-X2-58Manifold absolute pressure (MAP) signal | ||
| Temp in | single_source· Vendor | OEM-X1-37Intake air temperature (IAT) signal | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Injector | single_source· Vendor | OEM-X2-20Injector 1OEM-X2-18Injector 5 | ||
| Power in | single_source· Vendor | SP-14V-1 | ||
| H-bridge | single_source· Vendor | not connected | ||
| H-bridge | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-X2-12HO2S heater low control, bank 1 sensor 1 | ||
| H-bridge | single_source· Vendor | not connected | ||
| H-bridge | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-X1-17High speed cooling fan relay | ||
| Low-side out | single_source· Vendor | OEM-X1-52Starter enable relay control | ||
| Low-side out | single_source· Vendor | OEM-X1-63A/C compressor clutch relay | ||
| 5V / 8V ref | single_source· Vendor | not connected | ||
| Tacho out | single_source· Vendor | OEM-X1-48Tachometer output | ||
| Crank / cam | single_source· Vendor | OEM-X2-68Crankshaft position signal (58x) | ||
| Crank / cam | single_source· Vendor | not connected | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Temp in | single_source· Vendor | OEM-X2-21Engine coolant temperature (ECT) signal | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Ground | single_source· Vendor | SP-GND-1 |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with