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
T8-C1-34 Injector 3
T8-C1-25 Injector 4
T8-C1-16 Injector 5
T8-C1-15 Injector 6
T8-C1-24 Injector 7
GND
T8-C2-22 Cam 1
T8-C1-10 Coil 1
T8-C1-18 Coil 2
T8-C1-1 Coil 3
T8-C3-3 Lambda 2 Heater Negative
T8-C1-5 PWM 1
T8-C1-4 PWM 2
T8-C1-3 PWM 3
T8-C3-22 PWM 4
GND
0V sensor
T8-C2-12 Crank
T8-C2-3 Analogue 10
T8-C2-32 Wheel 4
T8-C3-32 Knock 2
T8-C3-31 Knock 1
GND
OEM-B74
Stock ECU being replaced
1Injector 3 (#30)
2Injector 4 (#40)
3Injector 5 (#50)
4Injector 6 (#60)
5Intake air bypass VSV (VSV1)
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)
15Wastegate VSV (PMC)
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+)
24Neutral/park switch (NSW)
25Igniter verification (IGF)
27Knock sensor 2 (KNK2, rear)
28Knock sensor 1 (KNK1, front)
31Power ground (E02)
5V ref
T8-C1-23 Injector 8
T8-C3-9 Lambda 1 Heater Negative
T8-C1-9 Injector 1
T8-C1-17 Injector 2
T8-C2-16 Analogue 11
T8-C2-10 Analogue 1
T8-C2-19 Analogue 6
T8-C3-17 Analogue 7
T8-C2-7 Thermistor 1
T8-C2-1 Analogue 2
T8-C2-6 Analogue 4
GND
0V sensor
0V sensor
T8-C2-34 Analogue 9
T8-C3-18 Analogue 8
T8-C2-25 Thermistor 2
T8-C2-5 Analogue 3
T8-C2-18 Analogue 5
OEM-B75
Stock ECU being replaced
2Sensor power (VC)
3Exhaust gas control VSV (VSV2)
4O2 sensor heater (HT)
5Injector 1 (#10)
6Injector 2 (#20)
8Main oil pressure switch (MOPS)
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)
20A/T 2nd-gear indicator (2)
21A/T 1st-gear indicator (L)
22Intake air temperature (THA)
23Throttle position 1 (VTA)
24Throttle position 2 (VTA2)
T8-C3-25 PWM 7
T8-C3-10 PWM 8
T8-C3-4 PWM 9
T8-C2-8 Digital 2
T8-C2-31 Wheel 3
T8-C3-28 PWM 10
T8-C2-4 Digital 1
T8-C2-20 Wheel 2
T8-C2-17 Thermistor 3
OEM-B76
Stock ECU being replaced
1A/T shift solenoid 1 (S1)
2A/T shift solenoid 2 (S2)
3A/T shift solenoid 3 (S3)
4OD direct-clutch speed (NCO+)
5No.2 speed sensor (SP2+)
6A/T shift solenoid 4 (S4)
10OD direct-clutch speed (NCO-)
11No.2 speed sensor return (SP2-)
17A/T oil temperature (OIL)
T8-C2-13 Analogue 12
T8-C3-23 PWM 5
T8-C2-11 Digital 3
T8-C2-14 Digital 4
T8-C2-2 Wheel 1
T8-C2-15 Digital 5
OEM-B77
Stock ECU being replaced
1A/C request (AC)
13A/C clutch relay (ACMG)
18Rear right wheel speed (RRO)
19Rear left wheel speed (RLO)
25No.1 speed sensor (SPD)
27Road speed (RSPD)
Battery constant (BATT)
T8-C2-27 Digital 6
ETCS-i power (+BM)
EFI main relay power (+B2)
T8-C3-24 PWM 6
EFI main relay power (+B)
0V sensor
OEM-B78
Stock ECU being replaced
1Battery constant (BATT)
4Fuel pump diagnostic (DI)
7ETCS-i power (+BM)
8EFI main relay power (+B2)
10EFI main relay control (M-REL)
16EFI main relay power (+B)
22Switch ground (EC)
OEM-B79
Stock ECU being replaced
T8
T8-C1
T8
1Coil 3
3PWM 3
4PWM 2
5PWM 1
9Injector 1
10Coil 1
13Power Ground 1
14Power Ground 2
15Injector 6
16Injector 5
17Injector 2
18Coil 2
23Injector 8
24Injector 7
25Injector 4
31Ignition 12v In
34Injector 3
OEM-B74-13 Ignition 3 (IGT3, cyl 3&4)
OEM-B74-19 ETCS-i clutch - (CL-)
OEM-B74-18 VVT-i OCV + (OCV+)
OEM-B74-17 VVT-i OCV - (OCV-)
OEM-B75-5 Injector 1 (#10)
OEM-B74-11 Ignition 1 (IGT, cyl 1&6)
GND
GND
OEM-B74-4 Injector 6 (#60)
OEM-B74-3 Injector 5 (#50)
OEM-B75-6 Injector 2 (#20)
OEM-B74-12 Ignition 2 (IGT2, cyl 5&2)
OEM-B75-3 Exhaust gas control VSV (VSV2)
OEM-B74-5 Intake air bypass VSV (VSV1)
OEM-B74-2 Injector 4 (#40)
Ignition 12v In
OEM-B74-1 Injector 3 (#30)
T8-C2
T8
1Analogue 2
2Wheel 1
3Analogue 10
4Digital 1
5Analogue 3
6Analogue 4
7Thermistor 1
8Digital 2
10Analogue 1
11Digital 3
12Crank
13Analogue 12
14Digital 4
15Digital 5
16Analogue 11
17Thermistor 3
18Analogue 5
19Analogue 6
20Wheel 2
21Sensor Ground
22Cam 1
245v Output
25Thermistor 2
27Digital 6
31Wheel 3
32Wheel 4
33Sensor Ground
34Analogue 9
OEM-B75-15 Accelerator pedal 1 (VPA)
OEM-B77-25 No.1 speed sensor (SPD)
OEM-B74-24 Neutral/park switch (NSW)
OEM-B76-10 OD direct-clutch speed (NCO-)
OEM-B75-23 Throttle position 1 (VTA)
OEM-B75-16 Accelerator pedal 2 (VPA2)
OEM-B75-14 Coolant temperature (THW)
OEM-B76-4 OD direct-clutch speed (NCO+)
OEM-B75-9 Manifold pressure (PIM)
OEM-B77-18 Rear right wheel speed (RRO)
OEM-B74-23 Crank position (NE+)
OEM-B77-1 A/C request (AC)
OEM-B77-19 Rear left wheel speed (RLO)
OEM-B77-27 Road speed (RSPD)
OEM-B75-8 Main oil pressure switch (MOPS)
OEM-B76-17 A/T oil temperature (OIL)
OEM-B75-24 Throttle position 2 (VTA2)
OEM-B75-10 Mass air flow (VG)
OEM-B76-11 No.2 speed sensor return (SP2-)
0V sensor
OEM-B74-10 Cam position (G2)
5V ref
OEM-B75-22 Intake air temperature (THA)
OEM-B78-4 Fuel pump diagnostic (DI)
OEM-B76-5 No.2 speed sensor (SP2+)
OEM-B74-25 Igniter verification (IGF)
0V sensor
OEM-B75-20 A/T 2nd-gear indicator (2)
T8-C3
T8
3Lambda 2 Heater Negative
4PWM 9
9Lambda 1 Heater Negative
10PWM 8
17Analogue 7
18Analogue 8
22PWM 4
23PWM 5
24PWM 6
25PWM 7
26Permanent 12v
28PWM 10
31Knock 1
32Knock 2
OEM-B74-15 Wastegate VSV (PMC)
OEM-B76-3 A/T shift solenoid 3 (S3)
OEM-B75-4 O2 sensor heater (HT)
OEM-B76-2 A/T shift solenoid 2 (S2)
OEM-B75-12 O2 sensor (OX)
OEM-B75-21 A/T 1st-gear indicator (L)
OEM-B74-20 ETCS-i clutch + (CL+)
OEM-B77-13 A/C clutch relay (ACMG)
OEM-B78-10 EFI main relay control (M-REL)
OEM-B76-1 A/T shift solenoid 1 (S1)
Permanent 12v
OEM-B76-6 A/T shift solenoid 4 (S4)
OEM-B74-28 Knock sensor 1 (KNK1, front)
OEM-B74-27 Knock sensor 2 (KNK2, rear)
SP-GND · 7 pins
SP-0V · 7 pins
SP-14V · 5 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.
70 / 70 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
| Wire | From | To | Signal | Gauge | Colour | Stripe | Ident | Flags | |
|---|---|---|---|---|---|---|---|---|---|
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — |