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
SL4-A-17 Auxiliary output 8
SL4-A-10 Auxiliary output 1
SL4-A-22 Digital input 3
SL4-B-20 Analog input 7 (switchable 1k pull-up)
SL4-B-3 EFI relay output (low side, 200 mA)
SL4-B-21 Analog input 8 (switchable 1k pull-up)
SL4-A-13 Auxiliary output 4
OEM-E11
Stock ECU being replaced
7O2 sensor heater (bank unconfirmed)
8O2 sensor heater (bank unconfirmed)
17Starter signal (STA)
18O2 sensor signal (bank unconfirmed)
19VVT oil-control valve RH (OCR+)
27O2 sensor signal (bank unconfirmed)
28VVT oil-control valve RH (OCR−)
OEM-E12
Stock ECU being replaced
5V ref
SL4-A-11 Auxiliary output 2
SL4-A-12 Auxiliary output 3
SL4-A-1 Injection channel 1
SL4-A-2 Injection channel 2
SL4-B-15 Analog input 5
SL4-B-11 Analog input 1
SL4-B-22 Analog input 9 (switchable 1k pull-up)
SL4-B-23 Analog input 10 (switchable 1k pull-up)
SL4-B-12 Analog input 2
SL4-B-19 Analog input 6
GND
0V sensor
0V sensor
SL4-B-14 Analog input 4
SL4-B-13 Analog input 3
OEM-E13
Stock ECU being replaced
2+5V sensor reference (VC)
3O2 sensor heater (bank unconfirmed)
4O2 sensor heater (bank unconfirmed)
5Injector 1 (cyl 1)
6Injector 2 (cyl 2)
9Accelerator pedal position 2 (VPA2)
10MAF signal (VG)
11O2 sensor signal (bank unconfirmed)
12O2 sensor signal (bank unconfirmed)
13Throttle position sensor 1 (VTA)
14Engine coolant temp (THW)
17ECU ground (E1)
18Sensor ground (E2)
19MAF ground (EVG)
20Throttle position sensor 2 (VTA2)
21Accelerator pedal position 1 (VPA)
SL4-A-3 Injection channel 3
SL4-A-4 Injection channel 4
SL4-A-1 Injection channel 1
SL4-A-2 Injection channel 2
SL4-A-3 Injection channel 3
SL4-A-4 Injection channel 4
SL4-A-19 Auxiliary output 10
SL4-A-18 Auxiliary output 9
SL4-B-7 Sync sensor +
SL4-A-26 Ignition channel 1
SL4-A-27 Ignition channel 2
SL4-A-28 Ignition channel 3
SL4-A-29 Ignition channel 4
SL4-B-24 Knock 2 +
SL4-B-16 Knock 1 +
SL4-A-14 Auxiliary output 5
GND
SL4-B-6 Crank index sensor −
SL4-B-5 Crank index sensor +
SL4-A-20 Digital input 1
SL4-A-21 Digital input 2
OEM-E14
Stock ECU being replaced
1Injector 3 (cyl 3)
2Injector 4 (cyl 4)
3Injector 5 (cyl 5)
4Injector 6 (cyl 6)
5Injector 7 (cyl 7)
6Injector 8 (cyl 8)
7Throttle motor − (M−)
8Throttle motor + (M+)
10Camshaft position sensor (G2)
11Ignition coil 1 (IGT1)
12Ignition coil 2 (IGT2)
13Ignition coil 3 (IGT3)
14Ignition coil 4 (IGT4)
17Knock sensor RH (KNKR)
18Knock sensor LH (KNKL)
20VVT oil-control valve LH (OCV+)
21Power/injector ground (E01)
22Crank position sensor (NE−)
23Crank position sensor (NE+)
27Ignition confirmation 1 (IGF1)
28Ignition confirmation 2 (IGF2)
SL4-A-16 Auxiliary output 7
ECM power feed (+BM)
ECM power (EFI relay +B1)
SL4-B-4 Ignition switch input
SL4-A-15 Auxiliary output 6
ECM power (EFI relay +B)
OEM-E15
Stock ECU being replaced
5Fuel pump relay control (FC)
7ECM power feed (+BM)
8ECM power (EFI relay +B1)
9Ignition switch (+12V)
10EFI main relay control (MREL)
16ECM power (EFI relay +B)
SL4
SL4-A
SL4
1Injection channel 1
2Injection channel 2
3Injection channel 3
4Injection channel 4
5–8 no data
10Auxiliary output 1
11Auxiliary output 2
12Auxiliary output 3
13Auxiliary output 4
14Auxiliary output 5
15Auxiliary output 6
16Auxiliary output 7
17Auxiliary output 8
18Auxiliary output 9
19Auxiliary output 10
20Digital input 1
21Digital input 2
22Digital input 3
26Ignition channel 1
27Ignition channel 2
28Ignition channel 3
29Ignition channel 4
30–33 no data
34Aux 9–10 14V supply
Injector 1 (cyl 1) · 2 pins
Injector 6 (cyl 6) · 2 pins
Injector 3 (cyl 3) · 2 pins
Injector 4 (cyl 4) · 2 pins
5–8 no data
OEM-E11-8 O2 sensor heater (bank unconfirmed)
OEM-E13-3 O2 sensor heater (bank unconfirmed)
OEM-E13-4 O2 sensor heater (bank unconfirmed)
OEM-E11-28 VVT oil-control valve RH (OCR−)
OEM-E14-20 VVT oil-control valve LH (OCV+)
OEM-E15-10 EFI main relay control (MREL)
OEM-E15-5 Fuel pump relay control (FC)
OEM-E11-7 O2 sensor heater (bank unconfirmed)
OEM-E14-8 Throttle motor + (M+)
OEM-E14-7 Throttle motor − (M−)
OEM-E14-27 Ignition confirmation 1 (IGF1)
OEM-E14-28 Ignition confirmation 2 (IGF2)
OEM-E11-17 Starter signal (STA)
OEM-E14-11 Ignition coil 1 (IGT1)
OEM-E14-12 Ignition coil 2 (IGT2)
OEM-E14-13 Ignition coil 3 (IGT3)
OEM-E14-14 Ignition coil 4 (IGT4)
30–33 no data
Aux 9–10 14V supply
SL4-B
SL4
1ECU 14V supply
2Sensor supply Vref1 5.0V
3EFI relay output (low side, 200 mA)
4Ignition switch input
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
15Analog input 5
16Knock 1 +
18ECU ground
19Analog input 6
20Analog input 7 (switchable 1k pull-up)
21Analog input 8 (switchable 1k pull-up)
22Analog input 9 (switchable 1k pull-up)
23Analog input 10 (switchable 1k pull-up)
24Knock 2 +
26ECU ground
29–30 no data
ECU 14V supply
5V ref
OEM-E11-19 VVT oil-control valve RH (OCR+)
OEM-E15-9 Ignition switch (+12V)
OEM-E14-23 Crank position sensor (NE+)
OEM-E14-22 Crank position sensor (NE−)
OEM-E14-10 Camshaft position sensor (G2)
SP-0V · 2 pins
0V sensor
OEM-E13-10 MAF signal (VG)
OEM-E13-13 Throttle position sensor 1 (VTA)
OEM-E13-21 Accelerator pedal position 1 (VPA)
OEM-E13-20 Throttle position sensor 2 (VTA2)
OEM-E13-9 Accelerator pedal position 2 (VPA2)
OEM-E14-18 Knock sensor LH (KNKL)
GND
OEM-E13-14 Engine coolant temp (THW)
OEM-E11-18 O2 sensor signal (bank unconfirmed)
OEM-E11-27 O2 sensor signal (bank unconfirmed)
OEM-E13-11 O2 sensor signal (bank unconfirmed)
OEM-E13-12 O2 sensor signal (bank unconfirmed)
OEM-E14-17 Knock sensor RH (KNKR)
GND
29–30 no data
SP-0V · 5 pins
SP-GND · 5 pins
SP-14V · 6 pins
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56 / 56 connections
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Lengths need a layout. Add bundles in Layout.
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