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
M800-A-28 INJ6
M800-A-20 INJ2
M800-A-22 INJ4
M800-A-32 AUX6
M800-A-1 AUX2
GND
M800-A-3 IGN1
M800-A-23 AUX3
GND
M800-B-3 Analog Temperature Input 1
M800-B-4 Analog Temperature Input 2
0V sensor
M800-A-14 AV1
M800-A-16 Analog Voltage Input 3
M800-A-34 AUX8
ECU main power (from engine-electronics relay)
M800-A-19 INJ1
M800-A-27 INJ5
M800-A-21 INJ3
M800-A-24 AUX4
M800-A-31 AUX5
0V sensor
M800-B-5 Analog Temperature Input 3
M800-B-9 Digital Input 2
M800-B-10 Digital Input 3
M800-A-15 Analog Voltage Input 2
5V ref
M800-B-2 Cam Sync Timing Input
M800-A-18 AUX1
M800-A-5 IGN3
M800-A-33 AUX7
GND
GND
M800-A-4 IGN2
M800-B-8 Digital Input 1
0V sensor
M800-B-1 Crank Reference Timing Input
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
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+)
M800
M800-A
M800
1AUX2
25V Engine Sensor Supply
3IGN1
4IGN2
5IGN3
10GND Battery Negative
11GND Battery Negative
14AV1
15Analog Voltage Input 2
16Analog Voltage Input 3
18AUX1
19INJ1
20INJ2
21INJ3
22INJ4
23AUX3
24AUX4
26VBAT Battery Positive
27INJ5
28INJ6
31AUX5
32AUX6
33AUX7
34AUX8
OEM-A-6 Fuel pump relay control
5V ref
OEM-A-8 Ignition coil 2 (coil pack pin 2)
OEM-A-60 Ignition coil 3 (coil pack pin 3)
OEM-A-52 Ignition coil 4 (coil pack pin 4)
GND
GND
OEM-A-17 MAF signal
OEM-A-40 Throttle position sensor 1
OEM-A-20 O2 sensor 1 (primary)
OEM-A-49 Secondary air injection relay control
OEM-A-24 Injector 1 (cyl 1)
OEM-A-3 Injector 2 (cyl 2)
OEM-A-26 Injector 3 (cyl 3)
OEM-A-4 Injector 4 (cyl 4)
OEM-A-9 Engine electronics relay control
OEM-A-27 Idle air control valve
VBAT Battery Positive
OEM-A-25 Injector 5 (cyl 5)
OEM-A-2 Injector 6 (cyl 6)
OEM-A-31 EVAP canister purge valve
OEM-A-5 Check engine light (MIL)
OEM-A-53 Idle air control valve (2nd)
OEM-A-22 Tachometer output
M800-B
M800
1Crank Reference Timing Input
2Cam Sync Timing Input
3Analog Temperature Input 1
4Analog Temperature Input 2
5Analog Temperature Input 3
8Digital Input 1
9Digital Input 2
10Digital Input 3
140V Comms Reference
150V Auxiliary Sensor Supply
160V Engine Sensor Supply
OEM-A-68 Crank position sensor (G28, VR+)
OEM-A-44 Camshaft position sensor (G40)
OEM-A-14 Coolant temperature (CLT)
OEM-A-15 EGR temperature sensor
OEM-A-36 Intake air temperature (IAT)
OEM-A-65 Vehicle speed sensor (VSS)
OEM-A-37 A/C compressor switch
OEM-A-39 A/C switch (cabin)
0V sensor
0V sensor
0V sensor
SP-GND · 8 pins
SP-14V · 3 pins
SP-0V · 7 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.
44 / 44 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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