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
MS3PROMINI-A
face not drawn
| Point | Signal | Family | Evidence | Destination |
|---|---|---|---|---|
| Power in | single_source· Vendor | SP-14V-1 | ||
| 5V / 8V ref | single_source· Vendor | OEM-A-11Sensor supply +5V (VC) | ||
| Low-side out | single_source· Vendor | OEM-B-6Fuel pump relay (FPR) | ||
| Low-side out | single_source· Vendor | OEM-B-4EFI main relay control (MREL) | ||
| Injector | single_source· Vendor | OEM-D-25Injector 4&6 (#30) | ||
| Injector | single_source· Vendor | OEM-B-7A/C clutch relay (ACMG) | ||
| Injector | single_source· Vendor | OEM-D-19O2 heater 2 (HT2) | ||
| Injector | single_source· Vendor | OEM-D-20O2 heater 1 (HT1) | ||
| Injector | single_source· Vendor | OEM-D-17Cold start injector 1 (STJ1) | ||
| Injector | single_source· Vendor | OEM-D-12Injector 1&7 (#10) | ||
| Injector | single_source· Vendor | OEM-D-11Injector 2&8 (#20) | ||
| Injector | single_source· Vendor | OEM-D-24Injector 3&5 (#40) | ||
| Analog in | single_source· Vendor | OEM-A-17O2 right front (OXR1) | ||
| Analog in | single_source· Vendor | OEM-A-6O2 left front (OXL1) | ||
| Analog in | single_source· Vendor | OEM-B-11O2 right rear (OXR2) | ||
| Analog in | single_source· Vendor | OEM-B-24O2 left rear (OXL2) | ||
| Ignition | single_source· Vendor | OEM-C-5Ignition 1 (IGT1) | ||
| Ignition | single_source· Vendor | OEM-C-13Ignition 2 (IGT2) | ||
| Ignition | single_source· Vendor | not connected | ||
| Ignition | single_source· Vendor | not connected | ||
| Sensor ground | single_source· Vendor | SP-0V-1 | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| Ground | single_source· Vendor | SP-GND-1 | ||
| CAN low | single_source· Vendor | not connected | ||
| CAN high | single_source· Vendor | not connected | ||
| Temp in | single_source· Vendor | OEM-A-5Coolant temperature (THW) | ||
| Temp in | single_source· Vendor | OEM-A-16Intake air temperature (THA) | ||
| Analog in | single_source· Vendor | OEM-A-4Throttle position (VTA1) | ||
| Digital in | single_source· Vendor | OEM-A-19Vehicle speed (SPD) | ||
| Crank / cam | single_source· Vendor | OEM-C-8Crank sensor + (NE+) | ||
| Crank / cam | single_source· Vendor | not connected | ||
| Crank / cam | single_source· Vendor | OEM-C-7Cam sensor 1 + (G1+) | ||
| Crank / cam | single_source· Vendor | OEM-C-6Cam sensor 2 + (G2+) | ||
| Digital in | single_source· Vendor | OEM-C-2Igniter 1 feedback (IGF1) | ||
| Digital in | single_source· Vendor | OEM-C-10Igniter 2 feedback (IGF2) |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with