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
P8-C1-13 Map2/ALS/Ana1 On/Off
P8-C1-14 Traction Wet/Dry
RLY1-R-OUT Relay contact output (switched +12 V to load)
RLY2-R-OUT Relay contact output (switched +12 V to load)
OEM-5
Stock ECU being replaced
F2Front VTEC pressure switch
F4Rear VTEC pressure switch
F5Front VTEC solenoid valve
F7Rear VTEC solenoid valve
P8-C1-37 Injector 1
P8-C1-36 Injector 4
P8-C1-18 Injector 2
P8-C1-17 Injector 5
P8-C1-54 Injector 3
P8-C1-35 Injector 6
P8-C1-42 Cam Phase Valve/Aux Out 4
P8-C1-41 Fuel Pump Relay
P8-C1-4 Idle Valve
P8-C1-53 Injector 7
P8-C1-6 Shift Light
P8-C1-16 Injector 8
P8-C1-5 Aux Out 2
P8-C1-43 Aux Out 3
P8-C1-1 Coil 1
P8-C1-38 Coil 2
GND
GND
ECU power (IGP1)
0V sensor
OEM-A
Stock ECU being replaced
1Injector 1
2Injector 4
3Injector 2
4Injector 5
5Injector 3
6Injector 6
7Main relay
8Fuel pump relay 2 (FLR2)
10Front O2 sensor heater (HTCNTF)
11EGR control solenoid
12Rear O2 sensor heater (HTCNTR)
13Check engine light (WARN)
15A/C clutch relay (ACC)
18Radiator fan control (FANCNTR)
21Ignition coil 1
22Ignition coil 2
23Power ground (PG1)
24Power ground (PG2)
25ECU power (IGP1)
26Sensor ground (LG1)
GND
P8-C1-3 Coil 6
P8-C1-39 Coil 5
P8-C1-2 Coil 4
P8-C1-31 Launch Button
P8-C1-20 Coil 3
P8-C1-9 Right Driven Wheel
0V sensor
P8-C1-27 Cam Sensor
0V sensor
P8-C1-29 Left Driven Wheel
0V sensor
P8-C1-8 Crank Sensor
0V sensor
OEM-B
Stock ECU being replaced
2Chassis ground (LG2)
3Ignition coil 6
4Ignition coil 5
6Ignition coil 4
7Neutral switch (M/T) / gear position (A/T)
8Ignition coil 3
9CYL 2P — CYP sensor 2 signal
10CYL 2M — CYP sensor 2 return
11CYL 1P — CYP sensor 1 signal
12CYL 1M — CYP sensor 1 return
13CRNK 2P — TDC sensor signal
14CRNK 2M — TDC sensor return
15CRNK 1P — crank sensor signal
16CRNK 1M — crank sensor return
ECU power (IGP2)
P8-C1-11 Undriven Wheel (must)
P8-C1-33 Shift Cut
P8-C1-24 Tacho
P8-C1-44 Analogue Input 3
P8-C1-32 Traction On/Off
OEM-C
Stock ECU being replaced
1ECU power (IGP2)
2Vehicle speed sensor (VSS)
3A/C switch (ACS)
4Tachometer output (NEP)
5A/C pressure switch (PDSW)
11Starter switch (STS)
P8-C1-50 Undriven Wheel (optional)
P8-C1-48 Throttle Wiper
P8-C1-7 Analogue Input 2 Or Log Switch
P8-C1-26 Water Temp
P8-C1-12 Lambda Signal
P8-C1-45 Air Temp
P8-C1-25 Analogue Input 1
P8-C1-30 Map
5V ref
5V ref
5V ref
0V sensor
0V sensor
OEM-D
Stock ECU being replaced
9Alternator FR signal
11Throttle position sensor (TPS)
12EGR lift sensor (EGRL)
13Engine coolant temperature (ECT)
14Primary O2 sensor
15Intake air temperature (IAT)
16Secondary O2 sensor
17MAP sensor
18+5V sensor supply (VCC)
19+5V sensor supply (VCC)
20+5V sensor supply (VCC)
21Sensor ground (SG)
22Sensor ground (SG)
P8
P8-C1
P8
1Coil 1
2Coil 4
3Coil 6
4Idle Valve
5Aux Out 2
6Shift Light
7Analogue Input 2 Or Log Switch
8Crank Sensor
9Right Driven Wheel
105 Volts
11Undriven Wheel (must)
12Lambda Signal
13Map2/ALS/Ana1 On/Off
14Traction Wet/Dry
15Power Ground
16Injector 8
17Injector 5
18Injector 2
1912 Volts
20Coil 3
21Turbo Pressure Valve
23Turbo ALS Valve
24Tacho
25Analogue Input 1
26Water Temp
27Cam Sensor
29Left Driven Wheel
30Map
31Launch Button
32Traction On/Off
33Shift Cut
34Power Ground
35Injector 6
36Injector 4
37Injector 1
38Coil 2
39Coil 5
41Fuel Pump Relay
42Cam Phase Valve/Aux Out 4
43Aux Out 3
44Analogue Input 3
45Air Temp
46Signal Ground
47Signal Ground
48Throttle Wiper
49Lambda Earth
50Undriven Wheel (optional)
51Signal Ground
53Injector 7
54Injector 3
55Power Ground
OEM-A-21 Ignition coil 1
OEM-B-6 Ignition coil 4
OEM-B-3 Ignition coil 6
OEM-A-10 Front O2 sensor heater (HTCNTF)
OEM-A-15 A/C clutch relay (ACC)
OEM-A-12 Rear O2 sensor heater (HTCNTR)
OEM-D-12 EGR lift sensor (EGRL)
OEM-B-15 CRNK 1P — crank sensor signal
OEM-B-9 CYL 2P — CYP sensor 2 signal
5V ref
OEM-C-2 Vehicle speed sensor (VSS)
OEM-D-14 Primary O2 sensor
OEM-5-F2 Front VTEC pressure switch
OEM-5-F4 Rear VTEC pressure switch
GND
OEM-A-13 Check engine light (WARN)
OEM-A-4 Injector 5
OEM-A-3 Injector 2
12 Volts
OEM-B-8 Ignition coil 3
RLY1-R-COIL- Relay coil negative (ECU low-side driver)
RLY2-R-COIL- Relay coil negative (ECU low-side driver)
OEM-C-4 Tachometer output (NEP)
OEM-D-16 Secondary O2 sensor
OEM-D-13 Engine coolant temperature (ECT)
OEM-B-11 CYL 1P — CYP sensor 1 signal
OEM-B-13 CRNK 2P — TDC sensor signal
OEM-D-17 MAP sensor
OEM-B-7 Neutral switch (M/T) / gear position (A/T)
OEM-C-11 Starter switch (STS)
OEM-C-3 A/C switch (ACS)
GND
OEM-A-6 Injector 6
OEM-A-2 Injector 4
OEM-A-1 Injector 1
OEM-A-22 Ignition coil 2
OEM-B-4 Ignition coil 5
OEM-A-8 Fuel pump relay 2 (FLR2)
OEM-A-7 Main relay
OEM-A-18 Radiator fan control (FANCNTR)
OEM-C-5 A/C pressure switch (PDSW)
OEM-D-15 Intake air temperature (IAT)
0V sensor
0V sensor
OEM-D-11 Throttle position sensor (TPS)
0V sensor
OEM-D-9 Alternator FR signal
0V sensor
OEM-A-11 EGR control solenoid
OEM-A-5 Injector 3
GND
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 · 5 pins
OEM-5-F5 Front VTEC solenoid valve
Relay coil positive (switched +12 V)
P8-C1-21 Turbo Pressure Valve
RLY2
RLY2-R
RLY2
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 · 5 pins
OEM-5-F7 Rear VTEC solenoid valve
Relay coil positive (switched +12 V)
P8-C1-23 Turbo ALS Valve
SP-GND · 7 pins
SP-0V · 12 pins
SP-14V · 8 pins
SP-5V1 · 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.
72 / 72 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 | |
|---|---|---|---|---|---|---|---|---|---|
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — | |||||||||
| — |