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
MICROSQUIRT-A
face not drawn
| Point | Signal | Family | Evidence | Destination |
|---|---|---|---|---|
| Power in | single_source· Vendor | SP-14V-1 | ||
| CAN high | single_source· Vendor | OEM-E-11CAN H | ||
| CAN low | single_source· Vendor | OEM-E-24CAN L | ||
| Crank / cam | single_source· Vendor | OEM-A-6Cam position sensor (T2) | ||
| Analog in | single_source· Vendor | OEM-A-26Accelerator pedal position A | ||
| Digital in | single_source· Vendor | OEM-D-1Cruise set switch | ||
| Low-side out | single_source· Vendor | OEM-D-15Throttle actuator relay | ||
| Low-side out | single_source· Vendor | OEM-E-17Fuel pump relay | ||
| Injector | single_source· Vendor | OEM-B-5Injector 1OEM-B-3Injector 3 | ||
| Injector | single_source· Vendor | OEM-B-4Injector 2OEM-B-2Injector 4 | ||
| Ignition | single_source· Vendor | OEM-A-16Ignition coil 1 | ||
| Ignition | single_source· Vendor | OEM-A-15Ignition coil 2 | ||
| No data | single_source· Vendor | not connected | ||
| No data | single_source· Vendor | not connected | ||
| No data | single_source· Vendor | not connected | ||
| Low-side out | single_source· Vendor | OEM-E-7Main relay control | ||
| Low-side out | single_source· Vendor | RLY1-R-COIL-Relay coil negative (ECU low-side driver) | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Crank / cam | single_source· Vendor | not connected | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Analog in | single_source· Vendor | OEM-A-30MAP sensor | ||
| Temp in | single_source· Vendor | OEM-B-8Coolant temp sensor | ||
| Temp in | single_source· Vendor | OEM-E-1Coolant temp sensor 2 | ||
| Analog in | single_source· Vendor | OEM-A-25Accelerator pedal position B | ||
| 5V / 8V ref | single_source· Vendor | SP-5V1-1 | ||
| Analog in | single_source· Vendor | TB-J-TPS1Throttle position 1 | ||
| Digital in | single_source· Vendor | OEM-A-18Vehicle speed sensor | ||
| Digital in | single_source· Vendor | OEM-B-11VTEC oil pressure switch | ||
| Crank / cam | single_source· Vendor | OEM-A-7Crank position sensor (T1) | ||
| Crank / cam | single_source· Vendor | not connected | ||
| O2 narrowband | single_source· Vendor | OEM-E-20Secondary O2 sensor | ||
| Tacho out | single_source· Vendor | OEM-E-25Engine speed pulse (tacho) |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with