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.

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Stock ECU being replaced

M150-A-17 Digital Input 4

M150-C-14 Analogue Voltage Input 1

M150-D-3 Analogue Temperature Input 1

M150-A-12 Lambda Narrow Input 2

M150-D-5 Analogue Temperature Input 3

M150-A-13 Knock Input 3

M150-A-23 Digital Input 1

5V ref

EFI main relay (B+)

EFI main relay (B1+)

M150-A-16 Digital Input 3

M150-D-4 Analogue Temperature Input 2

M150-A-11 Lambda Narrow Input 1

0V sensor

M150-D-11 Universal Digital Input 6

M150-A-15 Digital Input 2

GND

OEM-A

Stock ECU being replaced

2Starter signal (STA)

4Throttle position (VTA1)

5Coolant temperature (THW)

6O2 left front (OXL1)

7EGR temperature sensor

8Knock/shield (KS)

9Diagnostic test 1 (TE1)

11Sensor supply +5V (VC)

12EFI main relay (B+)

13EFI main relay (B1+)

14Neutral start switch (NSW)

16Intake air temperature (THA)

17O2 right front (OXR1)

18Sensor ground (E2)

19Vehicle speed (SPD)

20Diagnostic test 2 (TE2)

22Power ground (E1)

M150-B-9 Low Side Injector 3

M150-B-22 Peak Hold Injector 9

M150-B-15 Low Side Injector 4

M150-B-8 Low Side Injector 5

M150-B-23 Peak Hold Injector 10

M150-C-15 Analogue Voltage Input 2

M150-D-14 Universal Digital Input 7

M150-B-3 Universal Digital Input 8

M150-B-4 Universal Digital Input 9

M150-C-16 Analogue Voltage Input 3

Battery constant (BATT)

OEM-B

Stock ECU being replaced

4EFI main relay control (MREL)

5Check-engine lamp (W)

6Fuel pump relay (FPR)

7A/C clutch relay (ACMG)

8Fuel pump control (FC)

11O2 right rear (OXR2)

19Stop light switch (BK)

20A/T kickdown switch (KD)

23A/C request (AC)

24O2 left rear (OXL2)

26Battery constant (BATT)

M150-B-5 Universal Digital Input 10

M150-D-9 Universal Digital Input 4

M150-D-7 Knock Input 1

M150-C-3 Low Side Ignition 1

M150-D-8 Universal Digital Input 3

M150-D-2 Universal Digital Input 2

M150-D-1 Universal Digital Input 1

M150-D-10 Universal Digital Input 5

M150-D-13 Knock Input 2

M150-C-4 Low Side Ignition 2

0V sensor

OEM-C

Stock ECU being replaced

1TPS idle switch (IDL)

2Igniter 1 feedback (IGF1)

3Knock sensor 1 (KNK1)

5Ignition 1 (IGT1)

6Cam sensor 2 + (G2+)

7Cam sensor 1 + (G1+)

8Crank sensor + (NE+)

10Igniter 2 feedback (IGF2)

11Knock sensor 2 (KNK2)

13Ignition 2 (IGT2)

15Cam sensor ground (G-)

16Crank sensor - (NE-)

M150-C-30 Peak Hold Injector 8

M150-C-29 Peak Hold Injector 7

M150-C-28 Peak Hold Injector 6

M150-C-27 Peak Hold Injector 5

M150-C-23 Low Side Injector 1

M150-C-19 Peak Hold Injector 1

GND

M150-C-22 Peak Hold Injector 4

M150-B-14 Low Side Injector 6

M150-C-21 Peak Hold Injector 3

M150-B-24 Peak Hold Injector 11

M150-B-25 Peak Hold Injector 12

M150-C-20 Peak Hold Injector 2

M150-C-24 Low Side Injector 2

GND

OEM-D

Stock ECU being replaced

5ISC stepper coil 4 (ISC4)

6ISC stepper coil 3 (ISC3)

7ISC stepper coil 2 (ISC2)

8ISC stepper coil 1 (ISC1)

11Injector 2&8 (#20)

12Injector 1&7 (#10)

13Power ground (E01)

17Cold start injector 1 (STJ1)

19O2 heater 2 (HT2)

20O2 heater 1 (HT1)

21EGR solenoid

22Fuel pressure-up VSV (PR)

24Injector 3&5 (#40)

25Injector 4&6 (#30)

26Power ground (E02)

M150

M150-A

M150

10Sensor 5.0V C1

11Lambda Narrow Input 1

12Lambda Narrow Input 2

13Knock Input 3

15Digital Input 2

16Digital Input 3

17Digital Input 4

23Digital Input 1

24Battery Negative 3

25Battery Negative 4

26Sensor 0V C1

27Sensor 0V C2

32Battery Negative 5

33Sensor 0V B1

34Sensor 0V A1

5V ref

OEM-A-17 O2 right front (OXR1)

OEM-A-6 O2 left front (OXL1)

OEM-A-8 Knock/shield (KS)

OEM-A-20 Diagnostic test 2 (TE2)

OEM-A-14 Neutral start switch (NSW)

OEM-A-2 Starter signal (STA)

OEM-A-9 Diagnostic test 1 (TE1)

GND

0V sensor

GND

0V sensor

M150-B

M150

3Universal Digital Input 8

4Universal Digital Input 9

5Universal Digital Input 10

8Low Side Injector 5

9Low Side Injector 3

13Battery Positive

14Low Side Injector 6

15Low Side Injector 4

19Battery Positive

22Peak Hold Injector 9

23Peak Hold Injector 10

24Peak Hold Injector 11

25Peak Hold Injector 12

OEM-B-20 A/T kickdown switch (KD)

OEM-B-23 A/C request (AC)

OEM-C-1 TPS idle switch (IDL)

OEM-B-7 A/C clutch relay (ACMG)

OEM-B-4 EFI main relay control (MREL)

Battery Positive

OEM-D-19 O2 heater 2 (HT2)

OEM-B-6 Fuel pump relay (FPR)

Battery Positive

OEM-B-5 Check-engine lamp (W)

OEM-B-8 Fuel pump control (FC)

OEM-D-21 EGR solenoid

OEM-D-22 Fuel pressure-up VSV (PR)

M150-C

M150

3Low Side Ignition 1

4Low Side Ignition 2

10Battery Negative 1

11Battery Negative 2

14Analogue Voltage Input 1

15Analogue Voltage Input 2

16Analogue Voltage Input 3

19Peak Hold Injector 1

20Peak Hold Injector 2

21Peak Hold Injector 3

22Peak Hold Injector 4

23Low Side Injector 1

24Low Side Injector 2

26Battery Positive

27Peak Hold Injector 5

28Peak Hold Injector 6

29Peak Hold Injector 7

30Peak Hold Injector 8

OEM-C-5 Ignition 1 (IGT1)

OEM-C-13 Ignition 2 (IGT2)

GND

OEM-A-4 Throttle position (VTA1)

OEM-B-11 O2 right rear (OXR2)

OEM-B-24 O2 left rear (OXL2)

OEM-D-12 Injector 1&7 (#10)

OEM-D-24 Injector 3&5 (#40)

OEM-D-20 O2 heater 1 (HT1)

OEM-D-17 Cold start injector 1 (STJ1)

OEM-D-11 Injector 2&8 (#20)

OEM-D-25 Injector 4&6 (#30)

Battery Positive

OEM-D-8 ISC stepper coil 1 (ISC1)

OEM-D-7 ISC stepper coil 2 (ISC2)

OEM-D-6 ISC stepper coil 3 (ISC3)

OEM-D-5 ISC stepper coil 4 (ISC4)

M150-D

M150

1Universal Digital Input 1

2Universal Digital Input 2

3Analogue Temperature Input 1

4Analogue Temperature Input 2

5Analogue Temperature Input 3

7Knock Input 1

8Universal Digital Input 3

9Universal Digital Input 4

10Universal Digital Input 5

11Universal Digital Input 6

12Battery Backup

13Knock Input 2

14Universal Digital Input 7

15Sensor 0V A

16Sensor 0V B

OEM-C-8 Crank sensor + (NE+)

OEM-C-7 Cam sensor 1 + (G1+)

OEM-A-5 Coolant temperature (THW)

OEM-A-16 Intake air temperature (THA)

OEM-A-7 EGR temperature sensor

OEM-C-3 Knock sensor 1 (KNK1)

OEM-C-6 Cam sensor 2 + (G2+)

OEM-C-2 Igniter 1 feedback (IGF1)

OEM-C-10 Igniter 2 feedback (IGF2)

OEM-A-19 Vehicle speed (SPD)

Battery Backup

OEM-C-11 Knock sensor 2 (KNK2)

OEM-B-19 Stop light switch (BK)

0V sensor

SP-14V · 6 pins

SP-GND · 9 pins

SP-0V · 10 pins