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
Ignition power 2
Ignition power 1
GND
GND
T2-C1-12 Wheel 1
T2-C1-19 Crank
GND
GND
11–12 no data
T2-C1-6 Coil 2
T2-C1-3 Coil 1
17 no data
T2-C1-11 Digital 1
19 no data
5V ref
22 no data
0V sensor
27 no data
29 no data
T2-C1-20 Analogue 1
OEM-A
Stock ECU being replaced
2Ignition power 2
3Ignition power 1
4Power ground 2
5Power ground 1
6Cam position sensor (T2)
7Crank position sensor (T1)
8Logic ground 2
9Logic ground 1
11–12 no data
15Ignition coil 2
16Ignition coil 1
17 no data
18Vehicle speed sensor
19 no data
21Sensor voltage 1
22 no data
24Sensor ground 1
27 no data
29 no data
30MAP sensor
1 no data
T2-C1-9 Injector 2
T2-C1-8 Injector 1
T2-C1-9 Injector 2
T2-C1-8 Injector 1
RLY1-R-OUT Relay contact output (switched +12 V to load)
7 no data
T2-C1-24 Thermistor 1
9 no data
T2-C1-30 Digital 2
12 no data
T2-C1-34 Analogue 6
14 no data
16 no data
T2-C1-33 Analogue 5
22–24 no data
OEM-B
Stock ECU being replaced
1 no data
2Injector 4
3Injector 3
4Injector 2
5Injector 1
6VTEC solenoid
7 no data
8Coolant temp sensor
9 no data
11VTEC oil pressure switch
12 no data
13Alternator FR signal
14 no data
16 no data
17Intake air temp sensor
22–24 no data
2–3 no data
5–6 no data
10–14 no data
16–17 no data
OEM-D
Stock ECU being replaced
2–3 no data
5–6 no data
10–14 no data
16–17 no data
T2-C1-32 Thermistor 2
2 no data
GND
6 no data
T2-C1-10 PWM 2
10 no data
T2-C1-16 CAN High
T2-C1-15 Lambda Heater Negative
T2-C1-1 PWM 1
T2-C1-25 Analogue 4
23 no data
T2-C1-17 CAN Low
31 no data
OEM-E
Stock ECU being replaced
1Coolant temp sensor 2
2 no data
3Logic ground 3
6 no data
7Main relay control
10 no data
11CAN H
12Radiator fan control
17Fuel pump relay
20Secondary O2 sensor
23 no data
24CAN L
31 no data
RLY1
RLY1-R
RLY1
INRelay contact input (switched +12 V)
OUTRelay contact output (switched +12 V to load)
COIL+Relay coil positive (switched +12 V)
COIL-Relay coil negative (ECU low-side driver)
SP-14V · 3 pins
OEM-B-6 VTEC solenoid
Relay coil positive (switched +12 V)
T2-C1-18 PWM 3
T2
T2-C1
T2
1PWM 1
3Coil 1
6Coil 2
8Injector 1
9Injector 2
10PWM 2
11Digital 1
12Wheel 1
13Power Ground 1
14Power Ground 2
15Lambda Heater Negative
16CAN High
17CAN Low
18PWM 3
19Crank
20Analogue 1
23Analogue 3
24Thermistor 1
25Analogue 4
275v Output
28Sensor Ground
29Sensor Ground
30Digital 2
31Ignition 12v In
32Thermistor 2
33Analogue 5
34Analogue 6
OEM-E-17 Fuel pump relay
OEM-A-16 Ignition coil 1
OEM-A-15 Ignition coil 2
Injector 1 · 2 pins
Injector 2 · 2 pins
OEM-E-7 Main relay control
OEM-A-18 Vehicle speed sensor
OEM-A-6 Cam position sensor (T2)
GND
GND
OEM-E-12 Radiator fan control
OEM-E-11 CAN H
OEM-E-24 CAN L
RLY1-R-COIL- Relay coil negative (ECU low-side driver)
OEM-A-7 Crank position sensor (T1)
OEM-A-30 MAP sensor
TPS-J-SIG Throttle position signal
OEM-B-8 Coolant temp sensor
OEM-E-20 Secondary O2 sensor
5V ref
0V sensor
0V sensor
OEM-B-11 VTEC oil pressure switch
Ignition 12v In
OEM-E-1 Coolant temp sensor 2
OEM-B-17 Intake air temp sensor
OEM-B-13 Alternator FR signal
TPS
TPS-J
TPS
GNDSensor ground
SIGThrottle position signal
VCC5V supply in
0V sensor
T2-C1-23 Analogue 3
5V supply in
SP-14V · 6 pins
SP-GND · 8 pins
SP-5V1 · 5 pins
SP-5V · 5 pins
SP-0V · 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.
44 / 44 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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