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-C1-18 PWM 3
T2-C1-3 Coil 1
T2-C1-6 Coil 2
T2-C1-1 PWM 1
T2-C1-11 Digital 1
T2-C1-30 Digital 2
T2-C1-25 Analogue 4
T2-C1-33 Analogue 5
T2-C1-34 Analogue 6
T2-C1-10 PWM 2
OEM-1
Stock ECU being replaced
AConstant +12V
BECU power +14V (main relay)
EMalfunction indicator lamp (MIL)
GIgnition 1 (coils 1+4, wasted spark)
HIgnition 2 (coils 2+3, wasted spark)
JA/C relay
KDiagnostic mode switch (TEN)
NWide-open throttle switch
OStop light switch
PPower steering pressure switch
QA/C thermo switch
RA/C extra cooling fan relay
GND
GND
0V sensor
0V sensor
T2-C1-19 Crank
F no data
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-C1-8 Injector 1
T2-C1-9 Injector 2
T2-C1-26 PWM 4
T2-C1-15 Lambda Heater Negative
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)
F no data
GCam position (CAS G)
K+5V sensor supply
MTPS signal (A/T)
NO2 sensor
OAir flow meter (AFM)
PIntake air temperature (IAT)
QCoolant temperature (ECT)
UInjector 1 & 3 (batch)
VInjector 2 & 4 (batch)
WIdle speed control (ISC) valve
XPurge solenoid valve
YInjector 3 (California sequential)
ZInjector 4 (California sequential)
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-J A/C relay
OEM-1-G Ignition 1 (coils 1+4, wasted spark)
OEM-1-H Ignition 2 (coils 2+3, wasted spark)
Injector 3 (California sequential) · 2 pins
Injector 2 · 2 pins
OEM-1-R A/C extra cooling fan relay
OEM-1-K Diagnostic mode switch (TEN)
OEM-2-G Cam position (CAS G)
GND
GND
OEM-2-X Purge solenoid valve
OEM-1-E Malfunction indicator lamp (MIL)
OEM-2-E Crank position (CAS NE)
OEM-2-O Air flow meter (AFM)
Permanent 12v
OEM-2-M TPS signal (A/T)
OEM-2-N O2 sensor
OEM-2-Q Coolant temperature (ECT)
OEM-1-O Stop light switch
OEM-2-W Idle speed control (ISC) valve
5V ref
0V sensor
0V sensor
OEM-1-N Wide-open throttle switch
Ignition 12v In
OEM-2-P Intake air temperature (IAT)
OEM-1-P Power steering pressure switch
OEM-1-Q A/C thermo switch
SP-GND · 5 pins
SP-14V · 3 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.
35 / 35 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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