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 |
|---|---|---|---|
| OEM-A | connector | ||
| OEM-B | connector | ||
| OEM-E | connector | ||
| SP-0V | splice | ||
| SP-14V | splice | ||
| SP-5V1 | splice | ||
| SP-GND | splice | ||
| T4-C1 | connector | ||
| T4-C2 | connector | ||
| T4-C3 | connector |
Create part
Cut list
Lengths need a layout (0 of 55 routed).
| Wire | From / To | Gauge | Signal |
|---|---|---|---|
| W1 | OEM-A-2 / SP-14V-1 | 0.85 | Ignition power 2 (IGP2) |
| W2 | OEM-A-3 / SP-14V-1 | 0.85 | Ignition power 1 (IGP1) |
| W3 | SP-14V-1 / T4-C1-31 | 0.85 | Ignition 12v In |
| W4 | OEM-A-23 / SP-GND-1 | 0.85 | Logic ground 2 (LG2) |
| W5 | OEM-A-24 / SP-GND-1 | 0.85 | Logic ground 1 (LG1) |
| W6 | OEM-A-4 / SP-GND-1 | 0.85 | Power ground 2 (PG2) |
| W7 | OEM-A-5 / SP-GND-1 | 0.85 | Power ground 1 (PG1) |
| W8 | OEM-E-3 / SP-GND-1 | 0.85 | Logic ground 3 (LG3) |
| W9 | SP-GND-1 / T4-C1-13 | 0.85 | Power Ground 1 |
| W10 | SP-GND-1 / T4-C1-14 | 0.85 | Power Ground 2 |
| W11 | OEM-A-10 / SP-0V-1 | 0.5 | Sensor ground 2 (SG2) |
| W12 | OEM-A-11 / SP-0V-1 | 0.5 | Sensor ground 1 (SG1) |
| W13 | OEM-E-4 / SP-0V-1 | 0.5 | Sensor ground 3 (SG3) |
| W14 | SP-0V-1 / T4-C2-21 | 0.5 | Sensor Ground |
| W15 | SP-0V-1 / T4-C2-33 | 0.5 | Sensor Ground |
| W16 | OEM-A-20 / T4-C2-24 | 0.5 | Sensor 5V supply 2 (VCC2) |
| W17 | OEM-A-21 / SP-5V1-1 | 0.5 | Sensor 5V supply 1 (VCC1) |
| W18 | OEM-E-5 / SP-5V1-1 | 0.5 | Sensor 5V supply 3 (VCC3) |
| W19 | SP-5V1-1 / T4-C2-9 | 0.5 | 5v Output |
| W20 | OEM-A-7 / T4-C2-12 | 0.5 | Crank position sensor (CKP) |
| W21 | OEM-A-25 / T4-C2-22 | 0.5 | Camshaft position A (CMP A) |
| W22 | OEM-A-26 / T4-C2-2 | 0.5 | Camshaft position B (CMP B) |
| W23 | OEM-A-30 / T4-C1-10 | 0.5 | Ignition coil 1 (IGPLS1) |
| W24 | OEM-A-29 / T4-C1-18 | 0.5 | Ignition coil 2 (IGPLS2) |
| W25 | OEM-A-28 / T4-C1-1 | 0.5 | Ignition coil 3 (IGPLS3) |
| W26 | OEM-A-27 / T4-C1-26 | 0.5 | Ignition coil 4 (IGPLS4) |
| W27 | OEM-B-5 / T4-C1-9 | 0.5 | Injector 1 (INJ1) |
| W28 | OEM-B-4 / T4-C1-17 | 0.5 | Injector 2 (INJ2) |
| W29 | OEM-B-3 / T4-C1-34 | 0.5 | Injector 3 (INJ3) |
| W30 | OEM-B-2 / T4-C1-25 | 0.5 | Injector 4 (INJ4) |
| W31 | OEM-E-7 / T4-C1-5 | 0.5 | Main relay control (MRLY) |
| W32 | OEM-B-6 / T4-C1-4 | 0.5 | Radiator fan control (FANC) |
| W33 | OEM-E-1 / T4-C1-3 | 0.5 | Immobilizer fuel pump relay (IMO FPR) |
| W34 | OEM-E-18 / T4-C3-22 | 0.5 | A/C clutch relay (ACC) |
| W35 | OEM-E-8 / T4-C3-23 | 0.5 | A/F sensor heater relay control (AFSHTCR) |
| W36 | OEM-E-6 / T4-C3-9 | 0.5 | Secondary O2 heater control (SO2SHTC) |
| W37 | OEM-A-1 / T4-C3-24 | 0.5 | A/F sensor heater control (AFSHTC) |
| W38 | OEM-A-12 / T4-C3-25 | 0.5 | Idle air control valve (IACV) |
| W39 | OEM-B-15 / T4-C3-10 | 0.5 | VTEC solenoid (VTS) |
| W40 | OEM-A-6 / T4-C3-7 | 0.5 | A/F sensor + (AFS+, wideband Ip) |
| W41 | OEM-A-16 / T4-C3-12 | 0.5 | A/F sensor - (AFS-, wideband Vs) |
| W42 | OEM-A-19 / T4-C2-10 | 0.5 | Manifold absolute pressure (MAP) |
| W43 | OEM-A-15 / T4-C2-1 | 0.5 | Throttle position sensor (TPS) |
| W44 | OEM-E-2 / T4-C2-5 | 0.5 | Secondary heated O2 sensor (SHO2S) |
| W45 | OEM-B-8 / T4-C2-7 | 0.5 | Coolant temp sensor (ECT) |
| W46 | OEM-B-17 / T4-C2-25 | 0.5 | Intake air temp sensor (IAT) |
| W47 | OEM-B-13 / T4-C2-6 | 0.5 | Alternator FR signal (ALTF) |
| W48 | OEM-E-14 / T4-C2-19 | 0.5 | Fuel tank pressure sensor (FTP) |
| W49 | OEM-E-15 / T4-C3-17 | 0.5 | Electrical load detector (ELD) |
| W50 | OEM-A-18 / T4-C2-4 | 0.5 | Vehicle speed sensor (VSS, M/T) |
| W51 | OEM-B-10 / T4-C2-14 | 0.5 | Alternator L signal (ALTL) |
| W52 | OEM-B-9 / T4-C2-15 | 0.5 | VTEC oil pressure switch (VTPSW) |
| W53 | OEM-E-16 / T4-C3-18 | 0.5 | Power steering pressure switch (PSPSW) |
| W54 | OEM-E-20 / T4-C2-34 | 0.5 | Brake switch / interlock (2WBS) |
| W55 | OEM-E-22 / T4-C2-3 | 0.5 | Brake switch (BKSW) |
Bill of materials
No wire parts assigned: 55 wires need a wire part.
| Part number | Manufacturer | Description | Qty | Unit | Unit price | Buy |
|---|---|---|---|---|---|---|
| connector4 lines | ||||||
| 1318682-6 | TE | K-series ECU harness plug A (040-3 HD plug assy, 31P) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |
| 353029-1 | TE | K-series ECU harness plug B (040 H/D-3 plug HSG assy, 24P) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |
| 353826-1 | TE | K-series ECU harness plug E (040 HD 31P plug HSG assy-B, 31P) | 1 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |
| 4-1437290-0 | TE | Superseal 1.0 34-way plug, Key 1 | 3 | ea | 3 Way ComponentsKSV Looms (kit)TE Connectivity | |
| terminal2 lines | ||||||
| 3-1447221-4 | TE | Superseal 1.0 socket terminal, 20 AWG (0.5 sq mm) | 43 | ea | TE Connectivity | |
| 316836-1 | TE | Multilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²) | 49 | ea | Mouser ↗Digi-Key ↗Amazon ↗ | |