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)
SL8-A-20 Digital input 1
SL8-A-14 Auxiliary output 5
SL8-A-26 Ignition channel 1
SL8-A-27 Ignition channel 2
SL8-A-21 Digital input 2
SL8-A-22 Digital input 3
SL8-A-23 Digital input 4
SL8-A-24 Digital input 5
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)
NWide-open throttle switch
PPower steering pressure switch
QA/C request
VNeutral/clutch switch
GND
GND
0V sensor
0V sensor
SL8-B-5 Crank index sensor +
F no data
SL8-B-7 Sync sensor +
SL8-A-15 Auxiliary output 6
5V ref
SL8-A-25 Digital input 6
SL8-B-12 Analog input 2
SL8-B-11 Analog input 1
SL8-B-14 Analog input 4
SL8-B-13 Analog input 3
SL8-A-1 Injection channel 1
SL8-A-2 Injection channel 2
SL8-A-3 Injection channel 3
SL8-A-4 Injection channel 4
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)
ITachometer output
K+5V sensor supply
LIdle switch (TPS)
NO2 sensor
OAir flow meter (AFM)
PIntake air temperature (IAT)
QCoolant temperature (ECT)
UInjector 1 & 3 (batch)
VInjector 2 & 4 (batch)
YInjector 3 (California sequential)
ZInjector 4 (California sequential)
SL8
SL8-A
SL8
1Injection channel 1
2Injection channel 2
3Injection channel 3
4Injection channel 4
14Auxiliary output 5
15Auxiliary output 6
20Digital input 1
21Digital input 2
22Digital input 3
23Digital input 4
24Digital input 5
25Digital input 6
26Ignition channel 1
27Ignition channel 2
34Aux 9–10 14V supply
OEM-2-U Injector 1 & 3 (batch)
OEM-2-V Injector 2 & 4 (batch)
OEM-2-Y Injector 3 (California sequential)
OEM-2-Z Injector 4 (California sequential)
OEM-1-E Malfunction indicator lamp (MIL)
OEM-2-I Tachometer output
OEM-1-C Start signal
OEM-1-N Wide-open throttle switch
OEM-1-P Power steering pressure switch
OEM-1-Q A/C request
OEM-1-V Neutral/clutch switch
OEM-2-L Idle switch (TPS)
OEM-1-G Ignition 1 (coils 1+4, wasted spark)
OEM-1-H Ignition 2 (coils 2+3, wasted spark)
Aux 9–10 14V supply
SL8-B
SL8
1ECU 14V supply
2Sensor supply Vref1 5.0V
5Crank index sensor +
6Crank index sensor −
7Sync sensor +
8Sync sensor −
10Analog sensor 0V reference
11Analog input 1
12Analog input 2
13Analog input 3
14Analog input 4
18ECU ground
26ECU ground
29–30 no data
ECU 14V supply
5V ref
OEM-2-E Crank position (CAS NE)
SP-0V · 2 pins
OEM-2-G Cam position (CAS G)
SP-0V · 2 pins
0V sensor
OEM-2-O Air flow meter (AFM)
OEM-2-N O2 sensor
OEM-2-Q Coolant temperature (ECT)
OEM-2-P Intake air temperature (IAT)
GND
GND
29–30 no data
SP-14V · 4 pins
SP-0V · 6 pins
SP-GND · 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.
33 / 33 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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