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
ECU power (+B2, main relay)
Battery constant (BATT, memory)
T8-C2-15 Digital 5
GND
T8-C2-27 Digital 6
T8-C3-18 Analogue 8
T8-C2-25 Thermistor 2
T8-C2-4 Digital 1
T8-C2-8 Digital 2
T8-C2-11 Digital 3
T8-C2-14 Digital 4
T8-C3-34 CAN 2 Low
T8-C3-33 CAN 2 High
T8-C3-22 PWM 4
T8-C2-10 Analogue 1
0V sensor
OEM-A33
Stock ECU being replaced
1ECU power (+B2, main relay)
2Battery constant (BATT, memory)
3Stop light switch (ST1-)
4Power ground (EC)
7Stop light switch (STP)
8A/C pressure sensor (ACP)
12Intake air temperature (THA, in MAF)
14Starter signal (STSW2)
15Clutch switch (CLSW)
16Neutral switch (NSW)
17Starter signal (STSW2)
18CAN low (CANL)
19CAN high (CANH)
20Blower relay (HB)
22Mass air flow (VG)
29MAF sensor ground (E2G)
GND
GND
GND
T8-C3-9 Lambda 1 Heater Negative
ECU power (+B, main relay)
T8-C2-16 Analogue 11
T8-C2-34 Analogue 9
T8-C2-22 Cam 1
T8-C2-20 Wheel 2
T8-C2-12 Crank
T8-C3-32 Knock 2
T8-C2-1 Analogue 2
T8-C3-17 Analogue 7
T8-C2-2 Wheel 1
T8-C2-29 Cam 2
0V sensor
T8-C3-31 Knock 1
T8-C2-3 Analogue 10
5V ref
OEM-A34
Stock ECU being replaced
1Power ground (E03)
2Power ground (E04)
3Power ground (E05)
5A/F ratio sensor heater (HA1A)
6ECU power (+B, main relay)
9Fuel pressure sensor (PR)
11DI injector confirmation (IJF1)
14VVT cam sensor exhaust bank 1 (EV1+)
15VVT cam sensor intake bank 2 (VV2+)
16Crank position (NE+)
17Knock sensor 2 (KNK2)
20Manifold absolute pressure (PIM)
21Heated oxygen sensor (OX1B, rear)
25VVT cam sensor exhaust bank 2 (EV2+)
26VVT cam sensor intake bank 1 (VV1+)
27Crank position return (NE-)
28Knock sensor 1 (KNK1)
31DI injector confirmation (IJF2)
34OCV power source (VCV, 5V)
T8-C3-25 PWM 7
T8-C3-10 PWM 8
T8-C2-13 Analogue 12
T8-C1-3 PWM 3
T8-C1-4 PWM 2
T8-C1-5 PWM 1
T8-C3-23 PWM 5
5V ref
5V ref
T8-C2-18 Analogue 5
T8-C2-31 Wheel 3
0V sensor
0V sensor
T8-C2-5 Analogue 3
T8-C3-24 PWM 6
OEM-A35
Stock ECU being replaced
5Injector relay (IREL)
7ETCS relay (+BM)
10Fuel pump control monitor (DI)
11Cooling fan relay 3 (FAN1)
12Cooling fan relay 2 (FAN2)
13EFI main relay 1 (SSHUT)
17ETCS relay (MCR)
21Accelerator pedal 5V supply (VCPA)
22Accelerator pedal 5V supply (VCP2)
23Accelerator pedal position (VPA)
26Starter signal (STA)
29Accelerator pedal ground (EPA)
30Accelerator pedal ground (EPA2)
31Accelerator pedal position 2 (VPA2)
35A/C clutch relay (AC)
T8-C1-6 Motor 1 +
T8-C1-7 Motor 1 -
GND
GND
T8-C3-3 Lambda 2 Heater Negative
T8-C3-28 PWM 10
T8-C1-26 Coil 4
T8-C1-18 Coil 2
T8-C1-9 Injector 1
T8-C1-24 Injector 7
T8-C1-17 Injector 2
T8-C3-4 PWM 9
T8-C2-19 Analogue 6
5V ref
T8-C2-17 Thermistor 3
T8-C1-10 Coil 1
T8-C1-34 Injector 3
T8-C1-23 Injector 8
T8-C1-16 Injector 5
T8-C1-25 Injector 4
T8-C2-6 Analogue 4
0V sensor
T8-C2-7 Thermistor 1
T8-C1-1 Coil 3
T8-C1-15 Injector 6
OEM-A36
Stock ECU being replaced
1Throttle actuator motor - (M-)
2Throttle actuator motor + (M+)
3Power ground (E02)
4Power ground (E01)
6Heated oxygen sensor heater (HT1B)
7OCV exhaust bank 1 (OE1)
8Ignition coil 4 (IGT4)
10Ignition coil 2 (IGT2)
12Injector 1 port (#10)
13Injector 4 port (#40)
14Injector 1 direct (#1)
17OCV intake bank 1 (OC1)
18Throttle position (VTA1)
19Sensor 5V supply (VC)
20Oil temperature (OT)
21Ignition coil 1 (IGT1)
22Injector 2 port (#20)
23Injector 4 direct (#4)
24Injector 3 direct (#3)
25Injector 2 direct (#2)
28Throttle position 2 (VTA2)
29Sensor ground (E1)
30Engine coolant temperature (THW)
31Ignition coil 3 (IGT3)
32Injector 3 port (#30)
T8
T8-C1
T8
1Coil 3
3PWM 3
4PWM 2
5PWM 1
6Motor 1 +
7Motor 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
26Coil 4
31Ignition 12v In
34Injector 3
OEM-A36-31 Ignition coil 3 (IGT3)
OEM-A35-11 Cooling fan relay 3 (FAN1)
OEM-A35-12 Cooling fan relay 2 (FAN2)
OEM-A35-13 EFI main relay 1 (SSHUT)
OEM-A36-1 Throttle actuator motor - (M-)
OEM-A36-2 Throttle actuator motor + (M+)
OEM-A36-12 Injector 1 port (#10)
OEM-A36-21 Ignition coil 1 (IGT1)
GND
GND
OEM-A36-32 Injector 3 port (#30)
OEM-A36-24 Injector 3 direct (#3)
OEM-A36-14 Injector 1 direct (#1)
OEM-A36-10 Ignition coil 2 (IGT2)
OEM-A36-23 Injector 4 direct (#4)
OEM-A36-13 Injector 4 port (#40)
OEM-A36-25 Injector 2 direct (#2)
OEM-A36-8 Ignition coil 4 (IGT4)
Ignition 12v In
OEM-A36-22 Injector 2 port (#20)
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
29Cam 2
31Wheel 3
33Sensor Ground
34Analogue 9
OEM-A34-20 Manifold absolute pressure (PIM)
OEM-A34-25 VVT cam sensor exhaust bank 2 (EV2+)
OEM-A34-31 DI injector confirmation (IJF2)
OEM-A33-14 Starter signal (STSW2)
OEM-A35-31 Accelerator pedal position 2 (VPA2)
OEM-A36-28 Throttle position 2 (VTA2)
OEM-A36-30 Engine coolant temperature (THW)
OEM-A33-15 Clutch switch (CLSW)
OEM-A33-22 Mass air flow (VG)
OEM-A33-16 Neutral switch (NSW)
OEM-A34-16 Crank position (NE+)
OEM-A35-10 Fuel pump control monitor (DI)
OEM-A33-17 Starter signal (STSW2)
OEM-A33-3 Stop light switch (ST1-)
OEM-A34-9 Fuel pressure sensor (PR)
OEM-A36-20 Oil temperature (OT)
OEM-A35-23 Accelerator pedal position (VPA)
OEM-A36-18 Throttle position (VTA1)
OEM-A34-15 VVT cam sensor intake bank 2 (VV2+)
0V sensor
OEM-A34-14 VVT cam sensor exhaust bank 1 (EV1+)
5V ref
OEM-A33-12 Intake air temperature (THA, in MAF)
OEM-A33-7 Stop light switch (STP)
OEM-A34-26 VVT cam sensor intake bank 1 (VV1+)
OEM-A35-26 Starter signal (STA)
0V sensor
OEM-A34-11 DI injector confirmation (IJF1)
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
33CAN 2 High
34CAN 2 Low
OEM-A36-6 Heated oxygen sensor heater (HT1B)
OEM-A36-17 OCV intake bank 1 (OC1)
OEM-A34-5 A/F ratio sensor heater (HA1A)
OEM-A35-7 ETCS relay (+BM)
OEM-A34-21 Heated oxygen sensor (OX1B, rear)
OEM-A33-8 A/C pressure sensor (ACP)
OEM-A33-20 Blower relay (HB)
OEM-A35-17 ETCS relay (MCR)
OEM-A35-35 A/C clutch relay (AC)
OEM-A35-5 Injector relay (IREL)
Permanent 12v
OEM-A36-7 OCV exhaust bank 1 (OE1)
OEM-A34-28 Knock sensor 1 (KNK1)
OEM-A34-17 Knock sensor 2 (KNK2)
OEM-A33-19 CAN high (CANH)
OEM-A33-18 CAN low (CANL)
SP-14V · 4 pins
SP-GND · 9 pins
SP-0V · 8 pins
SP-5V1 · 6 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.
81 / 81 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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