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
ECU power +14V (main relay)
FT450-A-A23 White input 4 (oil pressure)
FT450-A-A4 Aux 2
FT450-A-A8 Ignition 1
FT450-A-A9 Ignition 2
FT450-A-A6 Aux 4 (fuel pump / relays)
FT450-A-A25 White input 6 (fuel pressure)
FT450-A-A3 Aux 1
OEM-1
Stock ECU being replaced
BECU power +14V (main relay)
CStart signal
EMalfunction indicator lamp (MIL)
GIgnition 1 (coils 1+4, wasted spark)
HIgnition 2 (coils 2+3, wasted spark)
JA/C relay
NWide-open throttle switch
RA/C extra cooling fan relay
GND
GND
0V sensor
0V sensor
SP-0V · 2 pins
F no data
FT450-A-A17 Phase input (cam)
5V ref
FT450-A-A21 White input 2
FT450-A-A22 White input 3 (TPS)
FT450-A-A20 White input 1
FT450-A-A26 White input 7 (air temp)
FT450-A-A24 White input 5 (water temp)
FT450-A-A1 Injector 1 (Bank A)
FT450-A-A2 Injector 2 (Bank A)
FT450-A-A5 Aux 3
FT450-A-A1 Injector 1 (Bank A)
FT450-A-A2 Injector 2 (Bank A)
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
YInjector 3 (California sequential)
ZInjector 4 (California sequential)
FT450
FT450-A
FT450
A1Injector 1 (Bank A)
A2Injector 2 (Bank A)
A3Aux 1
A4Aux 2
A5Aux 3
A6Aux 4 (fuel pump / relays)
A7Power ground
A8Ignition 1
A9Ignition 2
A12Signal ground
A13+12V switched
A14+5V sensor supply
A17Phase input (cam)
A18RPM reference (crank -)
A20White input 1
A21White input 2
A22White input 3 (TPS)
A23White input 4 (oil pressure)
A24White input 5 (water temp)
A25White input 6 (fuel pressure)
A26White input 7 (air temp)
Injector 3 (California sequential) · 2 pins
Injector 2 (Bank A) · 2 pins
OEM-1-R A/C extra cooling fan relay
OEM-1-E Malfunction indicator lamp (MIL)
OEM-2-W Idle speed control (ISC) valve
OEM-1-J A/C relay
GND
OEM-1-G Ignition 1 (coils 1+4, wasted spark)
OEM-1-H Ignition 2 (coils 2+3, wasted spark)
0V sensor
+12V switched
5V ref
OEM-2-G Cam position (CAS G)
SP-0V · 3 pins
OEM-2-O Air flow meter (AFM)
OEM-2-M TPS signal (A/T)
OEM-2-N O2 sensor
OEM-1-C Start signal
OEM-2-Q Coolant temperature (ECT)
OEM-1-N Wide-open throttle switch
OEM-2-P Intake air temperature (IAT)
SP-14V · 3 pins
SP-GND · 4 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.
29 / 29 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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