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.
Components
| Ref | Kind | Part | Exclude from BOM |
|---|---|---|---|
| MAIN-R | connector | ||
| NEW-BATT | terminal | ||
| OEM-E10 | connector | ||
| OEM-E9 | connector | ||
| SP-0V | splice | ||
| SP-14V | splice | ||
| SP-GND | splice | ||
| SPEEDUINO-A | connector | ||
| SPEEDUINO-PWR | connector |
Create part
Cut list
Lengths need a layout (0 of 46 routed).
| Wire | From / To | Gauge | Signal |
|---|---|---|---|
| W1 | OEM-E10-31 / SP-14V-1 | 0.85 | ECU power +B (main relay) |
| W2 | OEM-E10-1 / MAIN-R-COIL+ | 0.5 | Ignition switch (IGSW) |
| W3 | NEW-BATT-1 / MAIN-R-IN | 0.85 | Relay contact input (battery + via main fuse) |
| W4 | MAIN-R-COIL- / SP-GND-1 | 0.5 | Relay coil negative (ECU low-side driver) |
| W5 | MAIN-R-OUT / SPEEDUINO-PWR-12V | 0.85 | Relay contact output (switched +12V bus) |
| W6 | OEM-E9-4 / SP-GND-1 | 0.85 | Power ground (E11) |
| W7 | OEM-E9-69 / SP-GND-1 | 0.85 | ECU power ground (E1) |
| W8 | OEM-E9-78 / SP-GND-1 | 0.85 | Power ground (E01) |
| W9 | OEM-E9-79 / SP-GND-1 | 0.85 | Power ground (E01/E02) |
| W10 | OEM-E9-80 / SP-GND-1 | 0.85 | Power ground (E01/E02) |
| W11 | SP-GND-1 / SPEEDUINO-A-10 | 0.85 | Ground |
| W12 | SP-GND-1 / SPEEDUINO-A-9 | 0.85 | Ground |
| W13 | OEM-E9-5 / SP-0V-1 | 0.5 | Cam sensor 2 ground (G2-) |
| W14 | OEM-E9-6 / SP-0V-1 | 0.5 | Cam sensor 1 ground (G1-) |
| W15 | OEM-E9-65 / SP-0V-1 | 0.5 | Sensor ground (E2) |
| W16 | OEM-E9-7 / SP-0V-1 | 0.5 | Crank sensor ground (NE-) |
| W17 | SP-0V-1 / SPEEDUINO-A-12 | 0.5 | Ground |
| W18 | SP-0V-1 / SPEEDUINO-A-23 | 0.5 | Ground |
| W19 | OEM-E9-41 / SPEEDUINO-A-13 | 0.5 | Sensor supply +5V (VCC) |
| W20 | OEM-E9-27 / SPEEDUINO-A-25 | 0.5 | Crank position (NE) |
| W21 | OEM-E9-26 / SPEEDUINO-A-24 | 0.5 | Camshaft position 1 (G1) |
| W22 | OEM-E9-25 / SPEEDUINO-A-26 | 0.5 | Camshaft position 2 (G2) |
| W23 | OEM-E9-57 / SPEEDUINO-A-7 | 0.5 | Ignition 1 (IGT1) |
| W24 | OEM-E9-56 / SPEEDUINO-A-34 | 0.5 | Ignition 2 (IGT2) |
| W25 | OEM-E9-55 / SPEEDUINO-A-33 | 0.5 | Ignition 3 (IGT3) |
| W26 | OEM-E9-54 / SPEEDUINO-A-8 | 0.5 | Ignition 4 (IGT4) |
| W27 | OEM-E9-20 / SPEEDUINO-A-1 | 0.5 | Injector 1 |
| W28 | OEM-E9-19 / SPEEDUINO-A-2 | 0.5 | Injector 2 |
| W29 | OEM-E9-18 / SPEEDUINO-A-3 | 0.5 | Injector 3 |
| W30 | OEM-E9-17 / SPEEDUINO-A-5 | 0.5 | Injector 4 |
| W31 | OEM-E9-16 / SPEEDUINO-A-1 | 0.5 | Injector 5 |
| W32 | OEM-E9-15 / SPEEDUINO-A-2 | 0.5 | Injector 6 |
| W33 | OEM-E9-62 / SPEEDUINO-A-11 | 0.5 | MAP sensor (PIM) |
| W34 | OEM-E9-43 / SPEEDUINO-A-22 | 0.5 | Throttle position (VTA1) |
| W35 | OEM-E9-44 / SPEEDUINO-A-19 | 0.5 | Coolant temperature (THW) |
| W36 | OEM-E10-23 / SPEEDUINO-A-16 | 0.5 | A/C clutch relay (ACMG) |
| W37 | OEM-E10-24 / SPEEDUINO-A-15 | 0.5 | Main relay control (M-REL) |
| W38 | OEM-E9-71 / SPEEDUINO-A-36 | 0.5 | O2 heater 1 (HT1) |
| W39 | OEM-E9-72 / SPEEDUINO-A-35 | 0.5 | O2 heater 2 (HT2) |
| W40 | OEM-E10-22 / SPEEDUINO-A-37 | 0.5 | Fuel pump control (FPC) |
| W41 | OEM-E10-6 / SPEEDUINO-A-38 | 0.5 | Malfunction indicator lamp (MIL) |
| W42 | OEM-E10-16 / SPEEDUINO-A-17 | 0.5 | Tachometer output |
| W43 | OEM-E9-47 / SPEEDUINO-A-21 | 0.5 | O2 sensor 2 (OX2) |
| W44 | OEM-E9-45 / SPEEDUINO-A-20 | 0.5 | Intake air temperature (THA) |
| W45 | OEM-E10-2 / SPEEDUINO-A-14 | 0.5 | Vehicle speed sensor (SP1) |
| W46 | OEM-E10-21 / SPEEDUINO-A-18 | 0.5 | Fuel pump diagnostic (DI) |
Bill of materials
No parts in this harness.