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-50 Peak Hold Injector 2
M170-A-51 Low Side Injector 2
M170-A-63 Peak Hold Injector 3
M170-A-66 Peak Hold Injector 4
GND
M170-A-56 Universal Digital Input 2
M170-A-1 Low Side Ignition 1
M170-A-5 Low Side Ignition 2
M170-A-4 Low Side Ignition 3
M170-A-24 Peak Hold Injector 5
M170-A-42 Peak Hold Injector 6
M170-A-57 Peak Hold Injector 7
M170-A-62 Peak Hold Injector 8
GND
0V sensor
M170-A-49 Universal Digital Input 1
M170-A-53 Universal Digital Input 6
M170-A-60 Knock Input 2
M170-A-29 Knock Input 1
GND
OEM-B74
Stock ECU being replaced
1Injector 3 (#30)
2Injector 4 (#40)
3Injector 5 (#50)
4Injector 6 (#60)
9ETCS-i ground (ME01)
10Cam position (G2)
11Ignition 1 (IGT, cyl 1&6)
12Ignition 2 (IGT2, cyl 5&2)
13Ignition 3 (IGT3, cyl 3&4)
17VVT-i OCV - (OCV-)
18VVT-i OCV + (OCV+)
19ETCS-i clutch - (CL-)
20ETCS-i clutch + (CL+)
21Power ground (E01)
22Crank/cam sensor return (NE-)
23Crank position (NE+)
25Igniter verification (IGF)
27Knock sensor 2 (KNK2, rear)
28Knock sensor 1 (KNK1, front)
31Power ground (E02)
5V ref
M170-A-33 Peak Hold Injector 1
M170-A-43 Low Side Injector 1
M170-A-26 Analogue Voltage Input 1
M170-A-36 Analogue Voltage Input 6
M170-A-35 Analogue Voltage Input 7
M170-A-28 Analogue Temperature Input 1
M170-A-18 Analogue Voltage Input 2
M170-A-7 Analogue Voltage Input 4
GND
0V sensor
0V sensor
M170-A-44 Analogue Voltage Input 8
M170-A-38 Analogue Temperature Input 2
M170-A-6 Analogue Voltage Input 3
M170-A-12 Analogue Voltage Input 5
OEM-B75
Stock ECU being replaced
2Sensor power (VC)
5Injector 1 (#10)
6Injector 2 (#20)
9Manifold pressure (PIM)
10Mass air flow (VG)
12O2 sensor (OX)
14Coolant temperature (THW)
15Accelerator pedal 1 (VPA)
16Accelerator pedal 2 (VPA2)
17Power ground (E1)
18Sensor ground (E2)
19MAF ground (EVG)
21A/T 1st-gear indicator (L)
22Intake air temperature (THA)
23Throttle position 1 (VTA)
24Throttle position 2 (VTA2)
M170-A-22 Universal Digital Input 8
M170-A-52 Universal Digital Input 5
M170-A-13 Universal Digital Input 7
M170-A-45 Universal Digital Input 4
M170-A-30 Analogue Temperature Input 3
OEM-B76
Stock ECU being replaced
4OD direct-clutch speed (NCO+)
5No.2 speed sensor (SP2+)
10OD direct-clutch speed (NCO-)
11No.2 speed sensor return (SP2-)
17A/T oil temperature (OIL)
M170-A-46 Universal Digital Input 3
OEM-B77
Stock ECU being replaced
25No.1 speed sensor (SPD)
Battery constant (BATT)
ETCS-i power (+BM)
EFI main relay power (+B2)
EFI main relay power (+B)
0V sensor
OEM-B78
Stock ECU being replaced
1Battery constant (BATT)
7ETCS-i power (+BM)
8EFI main relay power (+B2)
16EFI main relay power (+B)
22Switch ground (EC)
OEM-B79
Stock ECU being replaced
M170
M170-A
M170
1Low Side Ignition 1
4Low Side Ignition 3
5Low Side Ignition 2
6Analogue Voltage Input 3
7Analogue Voltage Input 4
11Sensor 0V A
12Analogue Voltage Input 5
13Universal Digital Input 7
14Battery Negative 1
15Battery Negative 2
16Sensor 5.0V A
18Analogue Voltage Input 2
19Battery Negative 3
20Battery Negative 4
21Battery Negative 5
22Universal Digital Input 8
23Battery Positive
24Peak Hold Injector 5
26Analogue Voltage Input 1
27Sensor 0V B
28Analogue Temperature Input 1
29Knock Input 1
30Analogue Temperature Input 3
32Battery Positive
33Peak Hold Injector 1
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-B74-11 Ignition 1 (IGT, cyl 1&6)
OEM-B74-13 Ignition 3 (IGT3, cyl 3&4)
OEM-B74-12 Ignition 2 (IGT2, cyl 5&2)
OEM-B75-23 Throttle position 1 (VTA)
OEM-B75-16 Accelerator pedal 2 (VPA2)
0V sensor
OEM-B75-24 Throttle position 2 (VTA2)
OEM-B76-10 OD direct-clutch speed (NCO-)
GND
GND
5V ref
OEM-B75-15 Accelerator pedal 1 (VPA)
GND
GND
GND
OEM-B76-4 OD direct-clutch speed (NCO+)
Battery Positive
OEM-B74-17 VVT-i OCV - (OCV-)
OEM-B75-9 Manifold pressure (PIM)
0V sensor
OEM-B75-14 Coolant temperature (THW)
OEM-B74-28 Knock sensor 1 (KNK1, front)
OEM-B76-17 A/T oil temperature (OIL)
Battery Positive
OEM-B75-5 Injector 1 (#10)
OEM-B75-12 O2 sensor (OX)
OEM-B75-10 Mass air flow (VG)
OEM-B75-22 Intake air temperature (THA)
Battery Positive
OEM-B74-18 VVT-i OCV + (OCV+)
OEM-B75-6 Injector 2 (#20)
OEM-B75-21 A/T 1st-gear indicator (L)
OEM-B76-11 No.2 speed sensor return (SP2-)
OEM-B77-25 No.1 speed sensor (SPD)
OEM-B74-23 Crank position (NE+)
OEM-B74-1 Injector 3 (#30)
OEM-B74-2 Injector 4 (#40)
OEM-B76-5 No.2 speed sensor (SP2+)
OEM-B74-25 Igniter verification (IGF)
Battery Backup
OEM-B74-10 Cam position (G2)
OEM-B74-19 ETCS-i clutch - (CL-)
OEM-B74-27 Knock sensor 2 (KNK2, rear)
OEM-B74-20 ETCS-i clutch + (CL+)
OEM-B74-3 Injector 5 (#50)
OEM-B74-4 Injector 6 (#60)
SP-GND · 10 pins
SP-0V · 7 pins
SP-14V · 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.