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
Constant +12V
ECU power +14V (main relay)
T2-C1-30 Digital 2
T2-C1-3 Coil 1
T2-C1-6 Coil 2
T2-C1-1 PWM 1
T2-C1-11 Digital 1
T2-C1-25 Analogue 4
T2-C1-33 Analogue 5
T2-C1-10 PWM 2
T2-C1-34 Analogue 6
OEM-1
Stock ECU being replaced
AConstant +12V
BECU power +14V (main relay)
CStart signal
GIgnition 1 (coils 1+4, wasted spark)
HIgnition 2 (coils 2+3, wasted spark)
JA/C relay
MVehicle speed
PPower steering pressure switch
QA/C request
RCooling fan relay
VNeutral/clutch switch
GND
GND
0V sensor
0V sensor
T2-C1-19 Crank
0V sensor
T2-C1-12 Wheel 1
5V ref
T2-C1-22 Analogue 2
T2-C1-23 Analogue 3
T2-C1-20 Analogue 1
T2-C1-32 Thermistor 2
T2-C1-24 Thermistor 1
T2-C1-18 PWM 3
T2-C1-26 PWM 4
T2-C1-8 Injector 1
T2-C1-9 Injector 2
OEM-2
Stock ECU being replaced
APower ground
BPower ground
CSensor ground (E2)
DSensor ground (E2)
ECrank position (CAS NE)
FMAF ground
GCam position (CAS G)
K+5V sensor supply
MThrottle position (TPS)
NO2 sensor
OMass air flow (MAF)
PIntake air temperature (IAT)
QCoolant temperature (ECT)
SCondenser fan relay
TFuel pump relay
UInjector 1
VInjector 2
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
18PWM 3
19Crank
20Analogue 1
21Permanent 12v
22Analogue 2
23Analogue 3
24Thermistor 1
25Analogue 4
26PWM 4
275v Output
28Sensor Ground
29Sensor Ground
30Digital 2
31Ignition 12v In
32Thermistor 2
33Analogue 5
34Analogue 6
OEM-1-J A/C relay
OEM-1-G Ignition 1 (coils 1+4, wasted spark)
OEM-1-H Ignition 2 (coils 2+3, wasted spark)
OEM-2-U Injector 1
OEM-2-V Injector 2
OEM-1-R Cooling fan relay
OEM-1-M Vehicle speed
OEM-2-G Cam position (CAS G)
GND
GND
OEM-2-S Condenser fan relay
OEM-2-E Crank position (CAS NE)
OEM-2-O Mass air flow (MAF)
Permanent 12v
OEM-2-M Throttle position (TPS)
OEM-2-N O2 sensor
OEM-2-Q Coolant temperature (ECT)
OEM-1-P Power steering pressure switch
OEM-2-T Fuel pump relay
5V ref
0V sensor
0V sensor
OEM-1-C Start signal
Ignition 12v In
OEM-2-P Intake air temperature (IAT)
OEM-1-Q A/C request
OEM-1-V Neutral/clutch switch
SP-GND · 5 pins
SP-14V · 3 pins
SP-0V · 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.