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
face not drawn
| Point | Signal | Family | Evidence | Destination |
|---|---|---|---|---|
| Ignition | single_source· Vendor | not connected | ||
| Ignition | single_source· Vendor | not connected | ||
| Injector | single_source· Vendor | OEM-2-JInjector 4 | ||
| Injector | single_source· Vendor | OEM-2-DInjector 2 | ||
| Digital in | single_source· Vendor | OEM-3-TVehicle speed | ||
| Digital in | single_source· Vendor | OEM-3-SImmobiliser | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Low-side out | single_source· Vendor | OEM-2-CCondenser fan relay | ||
| Power out | single_source· Vendor | not connected | ||
| Power in | single_source· Vendor | SP-14V-1 | ||
| Low-side out | single_source· Vendor | OEM-3-JFront O2 heater | ||
| Analog in | single_source· Vendor | OEM-4-VThrottle position (TPS) | ||
| Analog in | single_source· Vendor | OEM-4-AARear O2 signal | ||
| Wideband Vs | single_source· Vendor | not connected | ||
| Wideband Vgnd | single_source· Vendor | not connected | ||
| CAN high | single_source· Vendor | not connected | ||
| Crank / cam | single_source· Vendor | OEM-3-VCam position (CMP) | ||
| 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-4-XMass air flow (MAF) | ||
| Ignition | single_source· Vendor | OEM-3-IIgnition 2 (coils 2+3, wasted spark) | ||
| Ignition | single_source· Vendor | OEM-3-FIgnition 1 (coils 1+4, wasted spark) | ||
| Injector | single_source· Vendor | OEM-2-GInjector 3 | ||
| No data | single_source· Vendor | not connected | ||
| No data | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | not connected | ||
| No data | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-3-PRear O2 heater | ||
| No data | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-2-MFuel pump relay | ||
| 5V / 8V ref | single_source· Vendor | OEM-4-L+5V sensor supply | ||
| 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 | not connected | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Knock | single_source· Vendor | OEM-4-MKnock sensor | ||
| No data | single_source· Vendor | not connected | ||
| Analog in | single_source· Vendor | OEM-4-AEPressure sensor (Mazda: EGR boost sensor) | ||
| Temp in | single_source· Vendor | OEM-4-NIntake air temperature (IAT) | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Injector | single_source· Vendor | OEM-2-AInjector 1 | ||
| Power in | single_source· Vendor | SP-14V-1 | ||
| H-bridge | single_source· Vendor | OEM-2-EEGR valve | ||
| H-bridge | single_source· Vendor | OEM-2-FEGR valve | ||
| Low-side out | single_source· Vendor | OEM-3-HMain relay | ||
| H-bridge | single_source· Vendor | OEM-2-HEGR valve | ||
| H-bridge | single_source· Vendor | OEM-2-IEGR valve | ||
| Low-side out | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-2-BCooling fan relay | ||
| Low-side out | single_source· Vendor | OEM-2-KA/C clutch relay | ||
| 5V / 8V ref | single_source· Vendor | not connected | ||
| Tacho out | single_source· Vendor | OEM-3-OTachometer output | ||
| Crank / cam | single_source· Vendor | not connected | ||
| Crank / cam | single_source· Vendor | OEM-3-YCrank position (CKP) | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Temp in | single_source· Vendor | OEM-4-PCoolant temperature (ECT) | ||
| 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