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.
100%
Stock ECU being replaced
GND
P8-C1-35 Injector 6
P8-C1-18 Injector 2
P8-C1-36 Injector 4
P8-C1-6 Shift Light
P8-C1-5 Aux Out 2
GND
P8-C1-1 Coil 1
P8-C1-43 Aux Out 3
GND
P8-C1-26 Water Temp
P8-C1-45 Air Temp
0V sensor
P8-C1-25 Analogue Input 1
P8-C1-12 Lambda Signal
P8-C1-24 Tacho
ECU main power (from engine-electronics relay)
P8-C1-37 Injector 1
P8-C1-17 Injector 5
P8-C1-54 Injector 3
P8-C1-4 Idle Valve
P8-C1-42 Cam Phase Valve/Aux Out 4
0V sensor
P8-C1-7 Analogue Input 2 Or Log Switch
P8-C1-13 Map2/ALS/Ana1 On/Off
P8-C1-14 Traction Wet/Dry
P8-C1-48 Throttle Wiper
5V ref
P8-C1-27 Cam Sensor
P8-C1-41 Fuel Pump Relay
P8-C1-23 Turbo ALS Valve
P8-C1-20 Coil 3
P8-C1-21 Turbo Pressure Valve
GND
GND
P8-C1-38 Coil 2
P8-C1-11 Undriven Wheel (must)
0V sensor
P8-C1-8 Crank Sensor
OEM-A
Stock ECU being replaced
1Ground (E-1)
2Injector 6 (cyl 6)
3Injector 2 (cyl 2)
4Injector 4 (cyl 4)
5Check engine light (MIL)
6Fuel pump relay control
7Ground (E-2)
8Ignition coil 2 (coil pack pin 2)
9Engine electronics relay control
10Ground (OBD1 EGR enable)
14Coolant temperature (CLT)
15EGR temperature sensor
16MAF ground
17MAF signal
20O2 sensor 1 (primary)
22Tachometer output
23ECU main power (from engine-electronics relay)
24Injector 1 (cyl 1)
25Injector 5 (cyl 5)
26Injector 3 (cyl 3)
27Idle air control valve
31EVAP canister purge valve
33Sensor ground bus
36Intake air temperature (IAT)
37A/C compressor switch
39A/C switch (cabin)
40Throttle position sensor 1
41TPS power (+5V)
44Camshaft position sensor (G40)
49Secondary air injection relay control
51MFA fuel-consumption signal
52Ignition coil 4 (coil pack pin 4)
53Idle air control valve (2nd)
55Ground (E-3)
56Ground (E-4)
60Ignition coil 3 (coil pack pin 3)
65Vehicle speed sensor (VSS)
67Crank sensor return (VR-)
68Crank position sensor (G28, VR+)
P8
P8-C1
P8
1Coil 1
4Idle Valve
5Aux Out 2
6Shift Light
7Analogue Input 2 Or Log Switch
8Crank Sensor
105 Volts
11Undriven Wheel (must)
12Lambda Signal
13Map2/ALS/Ana1 On/Off
14Traction Wet/Dry
15Power Ground
17Injector 5
18Injector 2
1912 Volts
20Coil 3
21Turbo Pressure Valve
23Turbo ALS Valve
24Tacho
25Analogue Input 1
26Water Temp
27Cam Sensor
34Power Ground
35Injector 6
36Injector 4
37Injector 1
38Coil 2
41Fuel Pump Relay
42Cam Phase Valve/Aux Out 4
43Aux Out 3
45Air Temp
46Signal Ground
47Signal Ground
48Throttle Wiper
49Lambda Earth
51Signal Ground
54Injector 3
55Power Ground
OEM-A-8 Ignition coil 2 (coil pack pin 2)
OEM-A-27 Idle air control valve
OEM-A-6 Fuel pump relay control
OEM-A-5 Check engine light (MIL)
OEM-A-36 Intake air temperature (IAT)
OEM-A-68 Crank position sensor (G28, VR+)
5V ref
OEM-A-65 Vehicle speed sensor (VSS)
OEM-A-20 O2 sensor 1 (primary)
OEM-A-37 A/C compressor switch
OEM-A-39 A/C switch (cabin)
GND
OEM-A-25 Injector 5 (cyl 5)
OEM-A-3 Injector 2 (cyl 2)
12 Volts
OEM-A-52 Ignition coil 4 (coil pack pin 4)
OEM-A-53 Idle air control valve (2nd)
OEM-A-51 MFA fuel-consumption signal
OEM-A-22 Tachometer output
OEM-A-17 MAF signal
OEM-A-14 Coolant temperature (CLT)
OEM-A-44 Camshaft position sensor (G40)
GND
OEM-A-2 Injector 6 (cyl 6)
OEM-A-4 Injector 4 (cyl 4)
OEM-A-24 Injector 1 (cyl 1)
OEM-A-60 Ignition coil 3 (coil pack pin 3)
OEM-A-49 Secondary air injection relay control
OEM-A-31 EVAP canister purge valve
OEM-A-9 Engine electronics relay control
OEM-A-15 EGR temperature sensor
0V sensor
0V sensor
OEM-A-40 Throttle position sensor 1
0V sensor
0V sensor
OEM-A-26 Injector 3 (cyl 3)
GND
SP-14V · 3 pins
SP-GND · 9 pins
SP-0V · 8 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
47 / 47 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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