Pinswap: ECU harness builder

100%

Stock ECU being replaced

SH8-B-17 Aux output 8

SH8-B-6 Injector cylinder 5

5 no data

SH8-B-23 Aux output 10

7–8 no data

SH8-A-26 Digital input 1

11 no data

14 no data

SH8-B-11 Aux output 2

SH8-B-13 Aux output 4

SH8-B-16 Aux output 7

SH8-B-15 Aux output 6

SH8-B-12 Aux output 3

22 no data

SH8-A-30 Digital input 5

SH8-A-31 Digital input 6

SH8-A-29 Digital input 4

SH8-B-25 Aux output 12

31 no data

SH8-A-28 Digital input 3

S2K-A

Stock ECU being replaced

1Coolant temp gauge drive

4Evap canister vent shut valve

5 no data

6Evap canister purge valve

7–8 no data

9Vehicle speed sensor

11 no data

14 no data

15Fuel pump relay (USDM)

17A/C clutch relay

18Check engine light (MIL)

19Tacho output

20Radiator fan relay

22 no data

24Starter switch signal

26Power steering load detect

27A/C switch (request)

28Air pump relay

31 no data

32Brake switch

Power source 1 (main relay)

GND

SH8-B-3 Injector cylinder 2

SH8-B-4 Injector cylinder 3

SH8-B-5 Injector cylinder 4

6–8 no data

Power source 2 (main relay)

SH8-B-2 Injector cylinder 1

SH8-B-14 Aux output 5

13–19 no data

Backup power (battery constant)

SH8-B-10 Aux output 1

24–25 no data

S2K-B

Stock ECU being replaced

1Power source 1 (main relay)

2Power ground 1

3Injector 2

4Injector 3

5Injector 4

6–8 no data

9Power source 2 (main relay)

11Injector 1

12VTEC solenoid

13–19 no data

21Backup power (battery constant)

23Idle air control valve

24–25 no data

SH8-B-22 Aux output 9

SH8-B-24 Aux output 11

SH8-B-27 Ignition TTL cylinder 1

6 no data

0V sensor

SH8-A-5 Crank position sensor

SH8-A-7 Trigger ground (via SP-TRG)

SH8-A-27 Digital input 2

SH8-B-28 Ignition TTL cylinder 2

SH8-B-29 Ignition TTL cylinder 3

SH8-B-30 Ignition TTL cylinder 4

SH8-A-13 Analog voltage 4

SH8-A-12 Analog voltage 3

SH8-A-10 Analog voltage 1

0V sensor

5V ref

SH8-A-6 Sync position sensor

SH8-A-7 Trigger ground (via SP-TRG)

23 no data

SH8-A-20 Analog voltage 8 (switchable 1k pull-up)

SH8-A-19 Analog voltage 7 (switchable 1k pull-up)

SH8-A-11 Analog voltage 2

5V ref

S2K-C

Stock ECU being replaced

1Primary O2 heater

2Alternator control

4Ignition coil 1

6 no data

7Sensor ground 1

8Crank sensor + (CKP+)

9Crank sensor − (CKP−)

10VTEC pressure switch

12Ignition coil 2

13Ignition coil 3

14Ignition coil 4

15Secondary O2 sensor

16Primary O2 sensor

17MAP sensor

18Sensor ground 2

19Sensor 5V supply 1 (MAP)

20Cam (TDC1) sensor +

21Cam (TDC1) sensor −

23 no data

25Intake air temp sensor

26Coolant temp sensor

27Throttle position sensor

28Sensor 5V supply 2

1–16 no data

S2K-D

Stock ECU being replaced

1–16 no data

SH8

SH8-A

SH8

1ECU supply

35.0V sensor supply

40V analog reference

5Crank position sensor

6Sync position sensor

7Trigger ground

9Ground 1

10Analog voltage 1

11Analog voltage 2

12Analog voltage 3

13Analog voltage 4

19Analog voltage 7 (switchable 1k pull-up)

20Analog voltage 8 (switchable 1k pull-up)

26Digital input 1

27Digital input 2

28Digital input 3

29Digital input 4

30Digital input 5

31Digital input 6

34Ground 2

ECU supply

5V ref

0V sensor

S2K-C-8 Crank sensor + (CKP+)

S2K-C-20 Cam (TDC1) sensor +

0V sensor

GND

S2K-C-17 MAP sensor

S2K-C-27 Throttle position sensor

S2K-C-16 Primary O2 sensor

S2K-C-15 Secondary O2 sensor

S2K-C-26 Coolant temp sensor

S2K-C-25 Intake air temp sensor

S2K-A-9 Vehicle speed sensor

S2K-C-10 VTEC pressure switch

S2K-A-32 Brake switch

S2K-A-27 A/C switch (request)

S2K-A-24 Starter switch signal

S2K-A-26 Power steering load detect

GND

SH8-B

SH8

1Battery constant (HOT) supply

2Injector cylinder 1

3Injector cylinder 2

4Injector cylinder 3

5Injector cylinder 4

6Injector cylinder 5

10Aux output 1

11Aux output 2

12Aux output 3

13Aux output 4

14Aux output 5

15Aux output 6

16Aux output 7

17Aux output 8

21Digital input 10 / ignition switch

22Aux output 9

23Aux output 10

24Aux output 11

25Aux output 12

27Ignition TTL cylinder 1

28Ignition TTL cylinder 2

29Ignition TTL cylinder 3

30Ignition TTL cylinder 4

Battery constant (HOT) supply

S2K-B-11 Injector 1

S2K-B-3 Injector 2

S2K-B-4 Injector 3

S2K-B-5 Injector 4

S2K-A-4 Evap canister vent shut valve

S2K-B-23 Idle air control valve

S2K-A-15 Fuel pump relay (USDM)

S2K-A-20 Radiator fan relay

S2K-A-17 A/C clutch relay

S2K-B-12 VTEC solenoid

S2K-A-19 Tacho output

S2K-A-18 Check engine light (MIL)

S2K-A-1 Coolant temp gauge drive

SP-14V · 2 pins

S2K-C-1 Primary O2 heater

S2K-A-6 Evap canister purge valve

S2K-C-2 Alternator control

S2K-A-28 Air pump relay

S2K-C-4 Ignition coil 1

S2K-C-12 Ignition coil 2

S2K-C-13 Ignition coil 3

S2K-C-14 Ignition coil 4

SP-GND · 4 pins

SP-14V · 5 pins

SP-0V · 4 pins

SP-TRG · 4 pins

SP-5V · 4 pins