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
G4XATOMX-A-A4 Injector 1
G4XATOMX-A-A21 Aux 1
G4XATOMX-A-A20 Aux 2
G4XATOMX-A-A3 Injector 2
G4XATOMX-A-A2 Injector 3
G4XATOMX-A-A1 Injector 4
G4XATOMX-A-A19 Aux 3
L no data
G4XATOMX-A-A18 Aux 4
ISC valve +14V feed
OEM-2
Stock ECU being replaced
AInjector 1
BCooling fan relay
CCondenser fan relay
DInjector 2
GInjector 3
JInjector 4
KA/C clutch relay
L no data
MFuel pump relay
PISC valve +14V feed
GND
GND
E no data
G4XATOMX-A-A13 Ignition 1
G no data
G4XATOMX-A-A12 Ignition 2
L no data
N no data
R no data
G4XATOMX-A-A31 Digital Input 2
G4XATOMX-A-A30 Digital Input 1
G4XATOMX-A-A9 Trigger 2
W–X no data
G4XATOMX-A-A8 Trigger 1
Z no data
OEM-3
Stock ECU being replaced
APower ground
BPower ground
E no data
FIgnition 1 (coils 1+4, wasted spark)
G no data
IIgnition 2 (coils 2+3, wasted spark)
L no data
N no data
R no data
SImmobiliser
TVehicle speed
VCam position (CMP)
W–X no data
YCrank position (CKP)
Z no data
GND
G no data
K no data
5V ref
G4XATOMX-A-A6 Knock 1
0V sensor
G4XATOMX-A-A15 Analog Temp 1
Q no data
G4XATOMX-A-A16 Analog Temp 2
U no data
G4XATOMX-A-A22 Analog Volt 2
G4XATOMX-A-A17 Analog Volt 1
Y no data
AB no data
G4XATOMX-A-A33 Analog Volt 3
ECU power +14V (main relay)
OEM-4
Stock ECU being replaced
APower ground
G no data
K no data
L+5V sensor supply
MKnock sensor
OSignal ground
PCoolant temperature (ECT)
Q no data
RIntake air temperature 2 (IAT2, turbo)
U no data
VThrottle position (TPS)
XMass air flow (MAF)
Y no data
AB no data
AEBARO/MAP sensor (turbo boost pressure)
AFECU power +14V (main relay)
G4XATOMX
G4XATOMX-A
G4XATOMX
A1Injector 4
A2Injector 3
A3Injector 2
A4Injector 1
A5+14V ECU Power
A6Knock 1
A8Trigger 1
A9Trigger 2
A12Ignition 2
A13Ignition 1
A15Analog Temp 1
A16Analog Temp 2
A17Analog Volt 1
A18Aux 4
A19Aux 3
A20Aux 2
A21Aux 1
A22Analog Volt 2
A24Sensor Ground
A25System Ground
A30Digital Input 1
A31Digital Input 2
A32+5V Out
A33Analog Volt 3
A34System Ground
OEM-2-J Injector 4
OEM-2-G Injector 3
OEM-2-D Injector 2
OEM-2-A Injector 1
+14V ECU Power
OEM-4-M Knock sensor
OEM-3-Y Crank position (CKP)
OEM-3-V Cam position (CMP)
OEM-3-I Ignition 2 (coils 2+3, wasted spark)
OEM-3-F Ignition 1 (coils 1+4, wasted spark)
OEM-4-P Coolant temperature (ECT)
OEM-4-R Intake air temperature 2 (IAT2, turbo)
OEM-4-X Mass air flow (MAF)
OEM-2-M Fuel pump relay
OEM-2-K A/C clutch relay
OEM-2-C Condenser fan relay
OEM-2-B Cooling fan relay
OEM-4-V Throttle position (TPS)
0V sensor
GND
OEM-3-T Vehicle speed
OEM-3-S Immobiliser
5V ref
OEM-4-AE BARO/MAP sensor (turbo boost pressure)
GND
SP-14V · 4 pins
SP-GND · 6 pins
SP-0V · 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.
31 / 31 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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