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-A-19 INJ1
M800-A-20 INJ2
M800-A-21 INJ3
M800-A-18 AUX1
M800-A-31 AUX5
M800-A-29 INJ7
M800-A-32 AUX6
M800-A-3 IGN1
GND
ECM power source (IGP1)
M800-A-22 INJ4
M800-A-27 INJ5
M800-A-28 INJ6
M800-A-30 INJ8
M800-A-33 AUX7
M800-A-34 AUX8
M800-A-4 IGN2
GND
0V sensor
OEM-A
Stock ECU being replaced
1Injector 1 (INJ1)
2Injector 2 (INJ2)
3Injector 3 (INJ3)
5Fuel pump relay (FLR1)
8A/C clutch relay (ACC)
9Front secondary O2 heater (FSO2SHTC)
10Rear secondary O2 heater (RSO2SHTC)
11Ignition coil 1 (IGN COIL1)
12Power ground (PG1)
13ECM power source (IGP1)
14Injector 4 (INJ4)
15Injector 5 (INJ5)
16Injector 6 (INJ6)
17EVAP bypass solenoid (2WBS)
22Front primary O2 heater (FPO2SHTC)
23Rear primary O2 heater (RPO2SHTC)
24Ignition coil 2 (IGN COIL2)
25Power ground (PG2)
26Logic ground (LG1)
M800-B-11 Digital Input 4
M800-A-8 IGN6
M800-B-2 Cam Sync Timing Input
M800-B-1 Crank Reference Timing Input
0V sensor
M800-A-7 IGN5
M800-A-6 IGN4
M800-A-5 IGN3
0V sensor
0V sensor
0V sensor
0V sensor
OEM-B
Stock ECU being replaced
1VTEC pressure switch front (VTP SWF)
2Ignition coil 6 (IGN COIL6)
6Cylinder position sensor 1 + (CYP 1P)
8Crank position sensor 1 + (CKP 1P)
9Logic ground (LG2)
10Ignition coil 5 (IGN COIL5)
11Ignition coil 4 (IGN COIL4)
12Ignition coil 3 (IGN COIL3)
13Cylinder position sensor 2 return (CYP 2M)
14Cylinder position sensor 1 return (CYP 1M)
15Crank position sensor 2 return (CKP 2M)
16Crank position sensor 1 return (CKP 1M)
ECM power source (IGP2)
M800-B-8 Digital Input 1
OEM-C
Stock ECU being replaced
1ECM power source (IGP2)
7Vehicle speed sensor (VSS)
M800-B-3 Analog Temperature Input 1
M800-B-4 Analog Temperature Input 2
M800-A-14 AV1
5V ref
0V sensor
M800-A-17 Analog Voltage Input 4
M800-A-25 Analog Voltage Input 5
M800-B-20 Analog Voltage Input 6
M800-B-21 AV7
M800-B-22 AV8
OEM-D
Stock ECU being replaced
7Engine coolant temperature (ECT)
8Intake air temperature (IAT)
9MAP sensor
10Sensor 5V supply (VCC2)
11Sensor ground (SG2)
12Throttle position sensor (TPS)
16Front secondary O2 signal (O2S FS)
17Rear secondary O2 signal (O2S RS)
18Front primary O2 signal (O2S FP)
19Rear primary O2 signal (O2S RP)
5V ref
0V sensor
M800-A-24 AUX4
M800-B-10 Digital Input 3
M800-A-16 Analog Voltage Input 3
M800-A-15 Analog Voltage Input 2
5V ref
0V sensor
M800-B-9 Digital Input 2
M800-A-1 AUX2
M800-A-23 AUX3
OEM-F
Stock ECU being replaced
1Sensor 5V supply (VCC1)
2Sensor ground (SG1)
4Fuel pump relay 2 (FLR2)
6Brake switch 2 (BKSW2)
12Accelerator pedal position 2 (AP2)
13Accelerator pedal position 1 (AP1)
14Accelerator pedal 5V supply (VCC3)
15Accelerator pedal ground (SG3)
16Brake switch 1 (BKSW1)
19VTEC solenoid front (VT SOLF)
20VTEC solenoid rear (VT SOLR)
Throttle motor power source 1 (IGM1)
Throttle motor power source 2 (IGM2)
GND
GND
Throttle motor common power phases 1&3 (COM1)
Throttle motor common power phases 2&4 (COM2)
OEM-G
Stock ECU being replaced
2Throttle motor power source 1 (IGM1)
3Throttle motor power source 2 (IGM2)
7Throttle motor ground 1 (PGM1)
8Throttle motor ground 2 (PGM2)
9Throttle motor common power phases 1&3 (COM1)
10Throttle motor common power phases 2&4 (COM2)
M800
M800-A
M800
1AUX2
25V Engine Sensor Supply
3IGN1
4IGN2
5IGN3
6IGN4
7IGN5
8IGN6
95V Auxiliary Sensor Supply
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-F-19 VTEC solenoid front (VT SOLF)
5V ref
OEM-A-11 Ignition coil 1 (IGN COIL1)
OEM-A-24 Ignition coil 2 (IGN COIL2)
OEM-B-12 Ignition coil 3 (IGN COIL3)
OEM-B-11 Ignition coil 4 (IGN COIL4)
OEM-B-10 Ignition coil 5 (IGN COIL5)
OEM-B-2 Ignition coil 6 (IGN COIL6)
5V ref
GND
GND
OEM-D-9 MAP sensor
OEM-F-13 Accelerator pedal position 1 (AP1)
OEM-F-12 Accelerator pedal position 2 (AP2)
OEM-D-12 Throttle position sensor (TPS)
OEM-A-5 Fuel pump relay (FLR1)
OEM-A-1 Injector 1 (INJ1)
OEM-A-2 Injector 2 (INJ2)
OEM-A-3 Injector 3 (INJ3)
OEM-A-14 Injector 4 (INJ4)
OEM-F-20 VTEC solenoid rear (VT SOLR)
OEM-F-4 Fuel pump relay 2 (FLR2)
OEM-D-16 Front secondary O2 signal (O2S FS)
VBAT Battery Positive
OEM-A-15 Injector 5 (INJ5)
OEM-A-16 Injector 6 (INJ6)
OEM-A-9 Front secondary O2 heater (FSO2SHTC)
OEM-A-17 EVAP bypass solenoid (2WBS)
OEM-A-8 A/C clutch relay (ACC)
OEM-A-10 Rear secondary O2 heater (RSO2SHTC)
OEM-A-22 Front primary O2 heater (FPO2SHTC)
OEM-A-23 Rear primary O2 heater (RPO2SHTC)
M800-B
M800
1Crank Reference Timing Input
2Cam Sync Timing Input
3Analog Temperature Input 1
4Analog Temperature Input 2
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-B-8 Crank position sensor 1 + (CKP 1P)
OEM-B-6 Cylinder position sensor 1 + (CYP 1P)
OEM-D-7 Engine coolant temperature (ECT)
OEM-D-8 Intake air temperature (IAT)
OEM-C-7 Vehicle speed sensor (VSS)
OEM-F-16 Brake switch 1 (BKSW1)
OEM-F-6 Brake switch 2 (BKSW2)
OEM-B-1 VTEC pressure switch front (VTP SWF)
0V sensor
0V sensor
0V sensor
OEM-D-17 Rear secondary O2 signal (O2S RS)
OEM-D-18 Front primary O2 signal (O2S FP)
OEM-D-19 Rear primary O2 signal (O2S RP)
SP-GND · 7 pins
SP-5V1 · 4 pins
SP-0V · 13 pins
SP-14V · 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.
67 / 67 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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