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1 error · 7 warnings53 wires
SchematicConnectionsPinsSplitRepinSpare I/OBuildsLayoutPartsHistory
Build packet (PDF)Wire labels (CSV)Bench test (CSV)Wiring workbook (Excel)Cut list (CSV)Parts list (CSV)Pin map (CSV)Findings (CSV)Harness file (JSON)Harness state (JSON)
Revisions

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

RefKindPartExclude from BOM
OEM-2connector
OEM-3connector
OEM-4connector
RLY1-Rconnector
RLY2-Rconnector
SP-0Vsplice
SP-14Vsplice
SP-GNDsplice
T4-C1connector
T4-C2connector
T4-C3connector

Create part

Cut list

Lengths need a layout (0 of 53 routed).

WireFrom / ToGaugeSignal
W1OEM-2-P / SP-14V-10.85ISC valve +14V feed
W2OEM-4-AF / SP-14V-10.85ECU power +14V (main relay)
W3SP-14V-1 / T4-C1-310.85Ignition 12v In
W4OEM-4-AG / T4-C3-260.85Constant +12V
W5OEM-3-A / SP-GND-10.85Power ground
W6OEM-3-B / SP-GND-10.85Power ground
W7OEM-4-A / SP-GND-10.85Power ground
W8SP-GND-1 / T4-C1-130.85Power Ground 1
W9SP-GND-1 / T4-C1-140.85Power Ground 2
W10OEM-4-O / SP-0V-10.5Signal ground
W11SP-0V-1 / T4-C2-210.5Sensor Ground
W12SP-0V-1 / T4-C2-330.5Sensor Ground
W13OEM-4-L / T4-C2-240.5+5V sensor supply
W14OEM-3-Y / T4-C2-120.5Crank position (CKP)
W15OEM-3-V / T4-C2-220.5Cam position (CMP)
W16OEM-3-F / T4-C1-100.5Ignition 1 (coils 1+4, wasted spark)
W17OEM-3-I / T4-C1-180.5Ignition 2 (coils 2+3, wasted spark)
W18OEM-2-A / T4-C1-90.5Injector 1
W19OEM-2-D / T4-C1-170.5Injector 2
W20OEM-2-G / T4-C1-340.5Injector 3
W21OEM-2-J / T4-C1-250.5Injector 4
W22OEM-4-X / T4-C2-100.5Mass air flow (MAF)
W23OEM-4-V / T4-C2-10.5Throttle position (TPS)
W24OEM-4-P / T4-C2-70.5Coolant temperature (ECT)
W25OEM-2-B / T4-C1-50.5Cooling fan relay
W26OEM-2-C / T4-C1-40.5Condenser fan relay
W27OEM-2-K / T4-C1-30.5A/C clutch relay
W28OEM-2-M / T4-C3-220.5Fuel pump relay
W29OEM-3-H / T4-C3-230.5Main relay
W30OEM-2-O / T4-C3-240.5Fuel pump relay (non-immobiliser)
W31OEM-4-D / RLY1-R-OUT0.5Boost control solenoid (turbo)
W32SP-14V-1 / RLY1-R-IN0.5Relay contact input (switched +12 V)
W33SP-14V-1 / RLY1-R-COIL+0.5Relay coil positive (switched +12 V)
W34RLY1-R-COIL- / T4-C3-250.5Relay coil negative (ECU low-side driver)
W35OEM-4-E / RLY2-R-OUT0.5Boost control solenoid (turbo)
W36SP-14V-1 / RLY2-R-IN0.5Relay contact input (switched +12 V)
W37SP-14V-1 / RLY2-R-COIL+0.5Relay coil positive (switched +12 V)
W38RLY2-R-COIL- / T4-C3-100.5Relay coil negative (ECU low-side driver)
W39OEM-3-J / T4-C3-90.5Front O2 heater
W40OEM-4-AE / T4-C2-50.5BARO/MAP sensor (turbo boost pressure)
W41OEM-4-AA / T4-C2-60.5Rear O2 signal
W42OEM-4-W / T4-C2-190.5Front O2 signal
W43OEM-4-R / T4-C2-250.5Intake air temperature 2 (IAT2, turbo)
W44OEM-4-N / T4-C2-170.5Intake air temperature (IAT)
W45OEM-4-AD / T4-C3-170.5Fuel level
W46OEM-3-T / T4-C2-20.5Vehicle speed
W47OEM-3-S / T4-C2-40.5Immobiliser
W48OEM-4-B / T4-C2-140.5Brake switch
W49OEM-4-C / T4-C2-150.5Power steering pressure switch
W50OEM-4-F / T4-C3-180.5A/C request
W51OEM-4-H / T4-C2-340.5Neutral switch
W52OEM-4-I / T4-C2-30.5Clutch switch
W53OEM-4-J / T4-C2-160.5VTCS vacuum switch

Bill of materials

No wire parts assigned: 53 wires need a wire part.

Part numberManufacturerDescriptionQtyUnitUnit priceBuy
connector1 line
4-1437290-0TESuperseal 1.0 34-way plug, Key 13ea3 Way ComponentsKSV Looms (kit)TE Connectivity
terminal1 line
3-1447221-4TESuperseal 1.0 socket terminal, 20 AWG (0.5 sq mm)41eaTE Connectivity