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
M800-B-22 AV8
M800-A-14 AV1
M800-B-3 Analog Temperature Input 1
M800-A-16 Analog Voltage Input 3
M800-B-5 Analog Temperature Input 3
M800-B-11 Digital Input 4
5V ref
EFI main relay (B+)
EFI main relay (B1+)
M800-B-21 AV7
M800-B-4 Analog Temperature Input 2
M800-A-15 Analog Voltage Input 2
0V sensor
M800-B-10 Digital Input 3
M800-B-20 Analog Voltage Input 6
GND
OEM-A
Stock ECU being replaced
2Starter signal (STA)
4Throttle position (VTA1)
5Coolant temperature (THW)
6O2 left front (OXL1)
7EGR temperature sensor
9Diagnostic test 1 (TE1)
11Sensor supply +5V (VC)
12EFI main relay (B+)
13EFI main relay (B1+)
14Neutral start switch (NSW)
16Intake air temperature (THA)
17O2 right front (OXR1)
18Sensor ground (E2)
19Vehicle speed (SPD)
20Diagnostic test 2 (TE2)
22Power ground (E1)
M800-A-18 AUX1
M800-A-29 INJ7
M800-A-1 AUX2
M800-A-23 AUX3
M800-A-30 INJ8
M800-A-17 Analog Voltage Input 4
M800-A-25 Analog Voltage Input 5
OEM-B
Stock ECU being replaced
4EFI main relay control (MREL)
5Check-engine lamp (W)
6Fuel pump relay (FPR)
7A/C clutch relay (ACMG)
8Fuel pump control (FC)
11O2 right rear (OXR2)
24O2 left rear (OXL2)
M800-B-8 Digital Input 1
M800-A-3 IGN1
M800-B-2 Cam Sync Timing Input
M800-B-1 Crank Reference Timing Input
M800-B-9 Digital Input 2
M800-A-4 IGN2
0V sensor
0V sensor
OEM-C
Stock ECU being replaced
2Igniter 1 feedback (IGF1)
5Ignition 1 (IGT1)
7Cam sensor 1 + (G1+)
8Crank sensor + (NE+)
10Igniter 2 feedback (IGF2)
13Ignition 2 (IGT2)
15Cam sensor ground (G-)
16Crank sensor - (NE-)
M800-A-28 INJ6
M800-A-27 INJ5
M800-A-34 AUX8
M800-A-33 AUX7
M800-A-20 INJ2
M800-A-19 INJ1
GND
M800-A-32 AUX6
M800-A-24 AUX4
M800-A-31 AUX5
M800-A-21 INJ3
M800-A-22 INJ4
GND
OEM-D
Stock ECU being replaced
5ISC stepper coil 4 (ISC4)
6ISC stepper coil 3 (ISC3)
7ISC stepper coil 2 (ISC2)
8ISC stepper coil 1 (ISC1)
11Injector 2&8 (#20)
12Injector 1&7 (#10)
13Power ground (E01)
17Cold start injector 1 (STJ1)
19O2 heater 2 (HT2)
20O2 heater 1 (HT1)
24Injector 3&5 (#40)
25Injector 4&6 (#30)
26Power ground (E02)
M800
M800-A
M800
1AUX2
25V Engine Sensor Supply
3IGN1
4IGN2
10GND Battery Negative
11GND Battery Negative
14AV1
15Analog Voltage Input 2
16Analog Voltage Input 3
17Analog Voltage Input 4
18AUX1
19INJ1
20INJ2
21INJ3
22INJ4
23AUX3
24AUX4
25Analog Voltage Input 5
26VBAT Battery Positive
27INJ5
28INJ6
29INJ7
30INJ8
31AUX5
32AUX6
33AUX7
34AUX8
OEM-B-6 Fuel pump relay (FPR)
5V ref
OEM-C-5 Ignition 1 (IGT1)
OEM-C-13 Ignition 2 (IGT2)
GND
GND
OEM-A-4 Throttle position (VTA1)
OEM-A-17 O2 right front (OXR1)
OEM-A-6 O2 left front (OXL1)
OEM-B-11 O2 right rear (OXR2)
OEM-B-4 EFI main relay control (MREL)
OEM-D-12 Injector 1&7 (#10)
OEM-D-11 Injector 2&8 (#20)
OEM-D-24 Injector 3&5 (#40)
OEM-D-25 Injector 4&6 (#30)
OEM-B-7 A/C clutch relay (ACMG)
OEM-D-19 O2 heater 2 (HT2)
OEM-B-24 O2 left rear (OXL2)
VBAT Battery Positive
OEM-D-6 ISC stepper coil 3 (ISC3)
OEM-D-5 ISC stepper coil 4 (ISC4)
OEM-B-5 Check-engine lamp (W)
OEM-B-8 Fuel pump control (FC)
OEM-D-20 O2 heater 1 (HT1)
OEM-D-17 Cold start injector 1 (STJ1)
OEM-D-8 ISC stepper coil 1 (ISC1)
OEM-D-7 ISC stepper coil 2 (ISC2)
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
11Digital Input 4
140V Comms Reference
150V Auxiliary Sensor Supply
160V Engine Sensor Supply
20Analog Voltage Input 6
21AV7
22AV8
OEM-C-8 Crank sensor + (NE+)
OEM-C-7 Cam sensor 1 + (G1+)
OEM-A-5 Coolant temperature (THW)
OEM-A-16 Intake air temperature (THA)
OEM-A-7 EGR temperature sensor
OEM-C-2 Igniter 1 feedback (IGF1)
OEM-C-10 Igniter 2 feedback (IGF2)
OEM-A-19 Vehicle speed (SPD)
OEM-A-9 Diagnostic test 1 (TE1)
0V sensor
0V sensor
0V sensor
OEM-A-20 Diagnostic test 2 (TE2)
OEM-A-14 Neutral start switch (NSW)
OEM-A-2 Starter signal (STA)
SP-14V · 4 pins
SP-GND · 6 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.
50 / 50 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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