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
M170-A-33 Peak Hold Injector 1
M170-A-43 Low Side Injector 1
M170-A-50 Peak Hold Injector 2
M170-A-24 Peak Hold Injector 5
M170-A-1 Low Side Ignition 1
GND
ECM power source (IGP1)
M170-A-51 Low Side Injector 2
M170-A-63 Peak Hold Injector 3
M170-A-66 Peak Hold Injector 4
M170-A-5 Low Side Ignition 2
GND
0V sensor
OEM-A
Stock ECU being replaced
1Injector 1 (INJ1)
2Injector 2 (INJ2)
3Injector 3 (INJ3)
5Fuel pump relay (FLR1)
11Ignition coil 1 (IGN COIL1)
12Power ground (PG1)
13ECM power source (IGP1)
14Injector 4 (INJ4)
15Injector 5 (INJ5)
16Injector 6 (INJ6)
24Ignition coil 2 (IGN COIL2)
25Power ground (PG2)
26Logic ground (LG1)
M170-A-22 Universal Digital Input 8
M170-A-25 Low Side Ignition 6
M170-A-45 Universal Digital Input 4
M170-A-46 Universal Digital Input 3
M170-A-56 Universal Digital Input 2
M170-A-49 Universal Digital Input 1
0V sensor
M170-A-17 Low Side Ignition 5
M170-A-10 Low Side Ignition 4
M170-A-4 Low Side Ignition 3
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)
5Cylinder position sensor 2 + (CYP 2P)
6Cylinder position sensor 1 + (CYP 1P)
7Crank position sensor 2 + (CKP 2P)
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)
M170-A-52 Universal Digital Input 5
OEM-C
Stock ECU being replaced
1ECM power source (IGP2)
7Vehicle speed sensor (VSS)
Backup power (VBU)
M170-A-60 Knock Input 2
M170-A-28 Analogue Temperature Input 1
M170-A-38 Analogue Temperature Input 2
M170-A-26 Analogue Voltage Input 1
5V ref
0V sensor
M170-A-7 Analogue Voltage Input 4
M170-A-29 Knock Input 1
M170-A-12 Analogue Voltage Input 5
M170-A-36 Analogue Voltage Input 6
M170-A-35 Analogue Voltage Input 7
M170-A-44 Analogue Voltage Input 8
OEM-D
Stock ECU being replaced
1Backup power (VBU)
2Knock sensor rear (KSR)
7Engine coolant temperature (ECT)
8Intake air temperature (IAT)
9MAP sensor
10Sensor 5V supply (VCC2)
11Sensor ground (SG2)
12Throttle position sensor (TPS)
13Knock sensor front (KSF)
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
M170-A-62 Peak Hold Injector 8
M170-A-13 Universal Digital Input 7
M170-A-6 Analogue Voltage Input 3
M170-A-18 Analogue Voltage Input 2
5V ref
0V sensor
M170-A-53 Universal Digital Input 6
M170-A-42 Peak Hold Injector 6
M170-A-57 Peak Hold Injector 7
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)
M170
M170-A
M170
1Low Side Ignition 1
4Low Side Ignition 3
5Low Side Ignition 2
6Analogue Voltage Input 3
7Analogue Voltage Input 4
10Low Side Ignition 4
11Sensor 0V A
12Analogue Voltage Input 5
13Universal Digital Input 7
14Battery Negative 1
15Battery Negative 2
16Sensor 5.0V A
17Low Side Ignition 5
18Analogue Voltage Input 2
19Battery Negative 3
20Battery Negative 4
21Battery Negative 5
22Universal Digital Input 8
23Battery Positive
24Peak Hold Injector 5
25Low Side Ignition 6
26Analogue Voltage Input 1
27Sensor 0V B
28Analogue Temperature Input 1
29Knock Input 1
32Battery Positive
33Peak Hold Injector 1
34Sensor 5.0V B
35Analogue Voltage Input 7
36Analogue Voltage Input 6
38Analogue Temperature Input 2
41Battery Positive
42Peak Hold Injector 6
43Low Side Injector 1
44Analogue Voltage Input 8
45Universal Digital Input 4
46Universal Digital Input 3
49Universal Digital Input 1
50Peak Hold Injector 2
51Low Side Injector 2
52Universal Digital Input 5
53Universal Digital Input 6
54Battery Backup
56Universal Digital Input 2
57Peak Hold Injector 7
60Knock Input 2
62Peak Hold Injector 8
63Peak Hold Injector 3
66Peak Hold Injector 4
OEM-A-11 Ignition coil 1 (IGN COIL1)
OEM-B-12 Ignition coil 3 (IGN COIL3)
OEM-A-24 Ignition coil 2 (IGN COIL2)
OEM-F-12 Accelerator pedal position 2 (AP2)
OEM-D-12 Throttle position sensor (TPS)
OEM-B-11 Ignition coil 4 (IGN COIL4)
0V sensor
OEM-D-16 Front secondary O2 signal (O2S FS)
OEM-F-6 Brake switch 2 (BKSW2)
GND
GND
5V ref
OEM-B-10 Ignition coil 5 (IGN COIL5)
OEM-F-13 Accelerator pedal position 1 (AP1)
GND
GND
GND
OEM-B-1 VTEC pressure switch front (VTP SWF)
Battery Positive
OEM-A-5 Fuel pump relay (FLR1)
OEM-B-2 Ignition coil 6 (IGN COIL6)
OEM-D-9 MAP sensor
0V sensor
OEM-D-7 Engine coolant temperature (ECT)
OEM-D-13 Knock sensor front (KSF)
Battery Positive
OEM-A-1 Injector 1 (INJ1)
5V ref
OEM-D-18 Front primary O2 signal (O2S FP)
OEM-D-17 Rear secondary O2 signal (O2S RS)
OEM-D-8 Intake air temperature (IAT)
Battery Positive
OEM-F-19 VTEC solenoid front (VT SOLF)
OEM-A-2 Injector 2 (INJ2)
OEM-D-19 Rear primary O2 signal (O2S RP)
OEM-B-5 Cylinder position sensor 2 + (CYP 2P)
OEM-B-6 Cylinder position sensor 1 + (CYP 1P)
OEM-B-8 Crank position sensor 1 + (CKP 1P)
OEM-A-3 Injector 3 (INJ3)
OEM-A-14 Injector 4 (INJ4)
OEM-C-7 Vehicle speed sensor (VSS)
OEM-F-16 Brake switch 1 (BKSW1)
Battery Backup
OEM-B-7 Crank position sensor 2 + (CKP 2P)
OEM-F-20 VTEC solenoid rear (VT SOLR)
OEM-D-2 Knock sensor rear (KSR)
OEM-F-4 Fuel pump relay 2 (FLR2)
OEM-A-15 Injector 5 (INJ5)
OEM-A-16 Injector 6 (INJ6)
SP-GND · 10 pins
SP-0V · 12 pins
SP-5V1 · 4 pins
SP-14V · 10 pins
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