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-C3-3 Lambda 2 Heater Negative
Ignition power 2 (IGP2)
Ignition power 1 (IGP1)
GND
GND
T8-C3-7 Lambda 1 Pump Current
T8-C2-12 Crank
0V sensor
0V sensor
T8-C3-24 PWM 6
T8-C2-1 Analogue 2
T8-C3-12 Lambda 1 Nernst Voltage
T8-C2-2 Wheel 1
T8-C2-10 Analogue 1
5V ref
5V ref
GND
GND
T8-C2-22 Cam 1
T8-C2-29 Cam 2
T8-C1-26 Coil 4
T8-C1-1 Coil 3
T8-C1-18 Coil 2
T8-C1-10 Coil 1
OEM-A
Stock ECU being replaced
1A/F sensor heater control (AFSHTC)
2Ignition power 2 (IGP2)
3Ignition power 1 (IGP1)
4Power ground 2 (PG2)
5Power ground 1 (PG1)
6A/F sensor + (AFS+, wideband Ip)
7Crank position sensor (CKP)
10Sensor ground 2 (SG2)
11Sensor ground 1 (SG1)
12Idle air control valve (IACV)
15Throttle position sensor (TPS)
16A/F sensor - (AFS-, wideband Vs)
18Vehicle speed sensor (VSS, M/T)
19Manifold absolute pressure (MAP)
20Sensor 5V supply 2 (VCC2)
21Sensor 5V supply 1 (VCC1)
23Logic ground 2 (LG2)
24Logic ground 1 (LG1)
25Camshaft position A (CMP A)
26Camshaft position B (CMP B)
27Ignition coil 4 (IGPLS4)
28Ignition coil 3 (IGPLS3)
29Ignition coil 2 (IGPLS2)
30Ignition coil 1 (IGPLS1)
T8-C3-10 PWM 8
T8-C1-25 Injector 4
T8-C1-34 Injector 3
T8-C1-17 Injector 2
T8-C1-9 Injector 1
T8-C1-4 PWM 2
T8-C1-15 Injector 6
T8-C2-7 Thermistor 1
T8-C2-8 Digital 2
T8-C2-4 Digital 1
T8-C2-6 Analogue 4
T8-C3-25 PWM 7
T8-C2-25 Thermistor 2
T8-C3-4 PWM 9
T8-C3-28 PWM 10
T8-C1-16 Injector 5
OEM-B
Stock ECU being replaced
1VTC oil control solenoid (+)
2Injector 4 (INJ4)
3Injector 3 (INJ3)
4Injector 2 (INJ2)
5Injector 1 (INJ1)
6Radiator fan control (FANC)
7Reverse lockout solenoid (RVS, Type-S)
8Coolant temp sensor (ECT)
9VTEC oil pressure switch (VTPSW)
10Alternator L signal (ALTL)
13Alternator FR signal (ALTF)
15VTEC solenoid (VTS)
17Intake air temp sensor (IAT)
18Alternator control (ALTC)
21Evap canister purge valve (PCS)
23VTC oil control solenoid (-)
T8-C1-3 PWM 3
T8-C2-5 Analogue 3
GND
0V sensor
5V ref
T8-C3-9 Lambda 1 Heater Negative
T8-C1-5 PWM 1
T8-C3-23 PWM 5
T8-C2-18 Analogue 5
T8-C2-19 Analogue 6
T8-C2-11 Digital 3
T8-C3-22 PWM 4
T8-C2-14 Digital 4
T8-C1-24 Injector 7
T8-C2-15 Digital 5
T8-C1-23 Injector 8
OEM-E
Stock ECU being replaced
1Immobilizer fuel pump relay (IMO FPR)
2Secondary heated O2 sensor (SHO2S)
3Logic ground 3 (LG3)
4Sensor ground 3 (SG3)
5Sensor 5V supply 3 (VCC3)
6Secondary O2 heater control (SO2SHTC)
7Main relay control (MRLY)
8A/F sensor heater relay control (AFSHTCR)
14Fuel tank pressure sensor (FTP)
15Electrical load detector (ELD)
16Power steering pressure switch (PSPSW)
18A/C clutch relay (ACC)
20Brake switch / interlock (2WBS)
21Evap vent shut valve (VSV)
22Brake switch (BKSW)
31Malfunction indicator lamp (MIL)
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
26Coil 4
31Ignition 12v In
34Injector 3
OEM-A-28 Ignition coil 3 (IGPLS3)
OEM-E-1 Immobilizer fuel pump relay (IMO FPR)
OEM-B-6 Radiator fan control (FANC)
OEM-E-7 Main relay control (MRLY)
OEM-B-5 Injector 1 (INJ1)
OEM-A-30 Ignition coil 1 (IGPLS1)
GND
GND
OEM-B-7 Reverse lockout solenoid (RVS, Type-S)
OEM-B-23 VTC oil control solenoid (-)
OEM-B-4 Injector 2 (INJ2)
OEM-A-29 Ignition coil 2 (IGPLS2)
OEM-E-31 Malfunction indicator lamp (MIL)
OEM-E-21 Evap vent shut valve (VSV)
OEM-B-2 Injector 4 (INJ4)
OEM-A-27 Ignition coil 4 (IGPLS4)
Ignition 12v In
OEM-B-3 Injector 3 (INJ3)
T8-C2
T8
1Analogue 2
2Wheel 1
4Digital 1
5Analogue 3
6Analogue 4
7Thermistor 1
8Digital 2
95v Output
10Analogue 1
11Digital 3
12Crank
14Digital 4
15Digital 5
18Analogue 5
19Analogue 6
21Sensor Ground
22Cam 1
245v Output
25Thermistor 2
29Cam 2
33Sensor Ground
OEM-A-15 Throttle position sensor (TPS)
OEM-A-18 Vehicle speed sensor (VSS, M/T)
OEM-B-10 Alternator L signal (ALTL)
OEM-E-2 Secondary heated O2 sensor (SHO2S)
OEM-B-13 Alternator FR signal (ALTF)
OEM-B-8 Coolant temp sensor (ECT)
OEM-B-9 VTEC oil pressure switch (VTPSW)
5V ref
OEM-A-19 Manifold absolute pressure (MAP)
OEM-E-16 Power steering pressure switch (PSPSW)
OEM-A-7 Crank position sensor (CKP)
OEM-E-20 Brake switch / interlock (2WBS)
OEM-E-22 Brake switch (BKSW)
OEM-E-14 Fuel tank pressure sensor (FTP)
OEM-E-15 Electrical load detector (ELD)
0V sensor
OEM-A-25 Camshaft position A (CMP A)
5V ref
OEM-B-17 Intake air temp sensor (IAT)
OEM-A-26 Camshaft position B (CMP B)
0V sensor
T8-C3
T8
3Lambda 2 Heater Negative
4PWM 9
7Lambda 1 Pump Current
9Lambda 1 Heater Negative
10PWM 8
12Lambda 1 Nernst Voltage
22PWM 4
23PWM 5
24PWM 6
25PWM 7
28PWM 10
OEM-A-1 A/F sensor heater control (AFSHTC)
OEM-B-18 Alternator control (ALTC)
OEM-A-6 A/F sensor + (AFS+, wideband Ip)
OEM-E-6 Secondary O2 heater control (SO2SHTC)
OEM-B-1 VTC oil control solenoid (+)
OEM-A-16 A/F sensor - (AFS-, wideband Vs)
OEM-E-18 A/C clutch relay (ACC)
OEM-E-8 A/F sensor heater relay control (AFSHTCR)
OEM-A-12 Idle air control valve (IACV)
OEM-B-15 VTEC solenoid (VTS)
OEM-B-21 Evap canister purge valve (PCS)
SP-14V · 4 pins
SP-GND · 8 pins
SP-0V · 6 pins
SP-5V1 · 4 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.
62 / 62 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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