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
T2-C1-1 PWM 1
T2-C1-10 PWM 2
T2-C1-30 Digital 2
T2-C1-18 PWM 3
T2-C1-11 Digital 1
T2-C1-26 PWM 4
OEM-1
Stock ECU being replaced
ACooling fan relay (low-side)
BA/C condenser fan relay
CStarter input (12V while cranking)
GA/C clutch relay
MVehicle speed sensor (VSS)
UFuel pump relay (low-side)
T2-C1-20 Analogue 1
T2-C1-33 Analogue 5
T2-C1-34 Analogue 6
T2-C1-22 Analogue 2
T2-C1-24 Thermistor 1
T2-C1-23 Analogue 3
5V ref
T2-C1-32 Thermistor 2
T2-C1-15 Lambda Heater Negative
T2-C1-25 Analogue 4
0V sensor
OEM-3
Stock ECU being replaced
BMAF sensor input
CFront O2 sensor input
DRear O2 sensor input
FThrottle position (TPS)
GEngine coolant temp (CLT)
HEGR boost sensor
I+5V sensor reference
KIntake air temp (IAT)
MFront O2 heater control
NEGR boost sensor (2nd channel)
OSensor ground
GND
ECU power +12V (main relay)
GND
GND
T2-C1-19 Crank
T2-C1-12 Wheel 1
0V sensor
Permanent +12V (battery)
GND
T2-C1-3 Coil 1
T2-C1-6 Coil 2
T2-C1-8 Injector 1
T2-C1-9 Injector 2
T2-C1-8 Injector 1
T2-C1-9 Injector 2
OEM-4
Stock ECU being replaced
AChassis ground
BECU power +12V (main relay)
CChassis ground
DChassis ground
ECrank position (CKP) sensor
GCAS SGC (cam sync)
HCrank pickup timing ground (CKP gnd)
IPermanent +12V (battery)
KChassis ground
NIgnition coil trigger (cyl 1&4)
RIgnition coil trigger (cyl 2&3)
UInjector 1 (cyl 1)
VInjector 2 (cyl 2)
WInjector 3 (cyl 3)
XInjector 4 (cyl 4)
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
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-A Cooling fan relay (low-side)
OEM-4-N Ignition coil trigger (cyl 1&4)
OEM-4-R Ignition coil trigger (cyl 2&3)
Injector 3 (cyl 3) · 2 pins
Injector 4 (cyl 4) · 2 pins
OEM-1-B A/C condenser fan relay
OEM-1-M Vehicle speed sensor (VSS)
OEM-4-G CAS SGC (cam sync)
GND
GND
OEM-3-M Front O2 heater control
OEM-1-G A/C clutch relay
OEM-4-E Crank position (CKP) sensor
OEM-3-B MAF sensor input
Permanent 12v
OEM-3-F Throttle position (TPS)
OEM-3-H EGR boost sensor
OEM-3-G Engine coolant temp (CLT)
OEM-3-N EGR boost sensor (2nd channel)
OEM-1-U Fuel pump relay (low-side)
5V ref
0V sensor
0V sensor
OEM-1-C Starter input (12V while cranking)
Ignition 12v In
OEM-3-K Intake air temp (IAT)
OEM-3-C Front O2 sensor input
OEM-3-D Rear O2 sensor input
SP-GND · 7 pins
SP-0V · 5 pins
SP-14V · 3 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.