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8 warnings51 wires
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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
M800-Aconnector
M800-Bconnector
MAIN-Rconnector
NEW-BATTterminal
OEM-2connector
OEM-3connector
OEM-4connector
SP-0Vsplice
SP-14Vsplice
SP-GNDsplice

Create part

Cut list

Lengths need a layout (0 of 51 routed).

WireFrom / ToGaugeSignal
W1OEM-2-P / SP-14V-10.85ISC valve +14V feed
W2OEM-4-AF / SP-14V-10.85ECU power +14V (main relay)
W3OEM-4-S / MAIN-R-COIL+0.5Ignition switch (IG1) sense
W4NEW-BATT-1 / MAIN-R-IN0.85Relay contact input (battery + via main fuse)
W5MAIN-R-COIL- / SP-GND-10.5Relay coil negative (ECU low-side driver)
W6MAIN-R-OUT / M800-A-260.85Relay contact output (switched +12V bus)
W7OEM-3-A / SP-GND-10.85Power ground
W8OEM-3-B / SP-GND-10.85Power ground
W9OEM-4-A / SP-GND-10.85Power ground
W10SP-GND-1 / M800-A-100.85GND Battery Negative
W11SP-GND-1 / M800-A-110.85GND Battery Negative
W12OEM-4-O / SP-0V-10.5Signal ground
W13SP-0V-1 / M800-B-140.50V Comms Reference
W14SP-0V-1 / M800-B-150.50V Auxiliary Sensor Supply
W15SP-0V-1 / M800-B-160.50V Engine Sensor Supply
W16OEM-4-L / M800-A-20.5+5V sensor supply
W17OEM-3-Y / M800-B-10.5Crank position (CKP)
W18OEM-3-V / M800-B-20.5Cam position (CMP)
W19OEM-3-F / M800-A-30.5Ignition 1 (coils 1+4, wasted spark)
W20OEM-3-I / M800-A-40.5Ignition 2 (coils 2+3, wasted spark)
W21OEM-2-A / M800-A-190.5Injector 1
W22OEM-2-D / M800-A-200.5Injector 2
W23OEM-2-G / M800-A-210.5Injector 3
W24OEM-2-J / M800-A-220.5Injector 4
W25OEM-4-X / M800-A-140.5Mass air flow (MAF)
W26OEM-4-V / M800-A-150.5Throttle position (TPS)
W27OEM-4-P / M800-B-30.5Coolant temperature (ECT)
W28OEM-2-B / M800-A-180.5Cooling fan relay
W29OEM-2-C / M800-A-10.5Condenser fan relay
W30OEM-2-K / M800-A-230.5A/C clutch relay
W31OEM-2-M / M800-A-240.5Fuel pump relay
W32OEM-3-H / M800-A-310.5Main relay
W33OEM-2-O / M800-A-320.5Fuel pump relay (non-immobiliser)
W34OEM-4-D / M800-A-330.5Boost control solenoid (turbo)
W35OEM-4-E / M800-A-340.5Boost control solenoid (turbo)
W36OEM-3-J / M800-A-270.5Front O2 heater
W37OEM-3-P / M800-A-280.5Rear O2 heater
W38OEM-2-Q / M800-A-290.5ISC valve low side
W39OEM-2-E / M800-A-300.5EGR valve
W40OEM-4-AE / M800-A-160.5BARO/MAP sensor (turbo boost pressure)
W41OEM-4-AA / M800-A-170.5Rear O2 signal
W42OEM-4-W / M800-A-250.5Front O2 signal
W43OEM-4-R / M800-B-40.5Intake air temperature 2 (IAT2, turbo)
W44OEM-4-N / M800-B-50.5Intake air temperature (IAT)
W45OEM-4-AD / M800-B-200.5Fuel level
W46OEM-3-T / M800-B-80.5Vehicle speed
W47OEM-3-S / M800-B-90.5Immobiliser
W48OEM-4-B / M800-B-100.5Brake switch
W49OEM-4-C / M800-B-110.5Power steering pressure switch
W50OEM-4-F / M800-B-210.5A/C request
W51OEM-4-H / M800-B-220.5Neutral switch

Bill of materials

No wire parts assigned: 51 wires need a wire part.

Part numberManufacturerDescriptionQtyUnitUnit priceBuy
connector2 lines
3-1437290-7TESuperseal 1.0 26-way plug1eaTE Connectivity
4-1437290-0TESuperseal 1.0 34-way plug, Key 11ea3 Way ComponentsKSV Looms (kit)TE Connectivity
terminal1 line
3-1447221-4TESuperseal 1.0 socket terminal, 20 AWG (0.5 sq mm)42eaTE Connectivity