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

ME442-C1-63 INJECTOR 1

ME442-C1-4 INJECTOR 2

ME442-C1-33 INJECTOR 3

ME442-C1-75 LOW SIDE RELAY 16

ME442-C1-73 LOW SIDE 1

ME442-C1-40 LOW SIDE RELAY 17

ME442-C1-9 LOW SIDE RELAY 18

ME442-C1-69 LOW SIDE 5

ME442-C1-42 LOW SIDE RELAY 12

ME442-C1-16 LSU HEATER -VE

ME442-C1-32 COIL 1

GND

ECM power source (IGP1)

ME442-C1-3 INJECTOR 4

ME442-C1-28 INJECTOR 5

ME442-C1-58 INJECTOR 6

ME442-C1-72 LOW SIDE RELAY 13

ME442-C1-43 LOW SIDE RELAY 14

ME442-C1-13 LOW SIDE RELAY 15

ME442-C1-39 LOW SIDE 6

ME442-C1-37 LOW SIDE RELAY 11

ME442-C1-31 COIL 2

GND

0V sensor

OEM-A

Stock ECU being replaced

1Injector 1 (INJ1)

2Injector 2 (INJ2)

3Injector 3 (INJ3)

4EVAP canister vent shut valve (VSV)

5Fuel pump relay (FLR1)

6EGR control solenoid (ESOL)

7Malfunction indicator lamp (MIL)

8A/C clutch relay (ACC)

9Front secondary O2 heater (FSO2SHTC)

10Rear secondary O2 heater (RSO2SHTC)

11Ignition coil 1 (IGN COIL1)

12Power ground (PG1)

13ECM power source (IGP1)

14Injector 4 (INJ4)

15Injector 5 (INJ5)

16Injector 6 (INJ6)

17EVAP bypass solenoid (2WBS)

20IAB control solenoid (IABCS)

21EVAP purge control solenoid (PCS)

22Front primary O2 heater (FPO2SHTC)

23Rear primary O2 heater (RPO2SHTC)

24Ignition coil 2 (IGN COIL2)

25Power ground (PG2)

26Logic ground (LG1)

ME442-C1-5 DIG_IN 4

ME442-C1-60 COIL 6

ME442-C1-62 DIG_IN 5

ME442-C1-34 DIG_IN 6

ME442-C1-23 CAM A VR-

ME442-C1-22 CAM A VR+

ME442-C1-81 CRANK VR-

ME442-C1-80 CRANK VR+

0V sensor

ME442-C1-59 COIL 5

ME442-C1-1 COIL 4

ME442-C1-2 COIL 3

0V sensor

OEM-B

Stock ECU being replaced

1VTEC pressure switch front (VTP SWF)

2Ignition coil 6 (IGN COIL6)

3VTEC pressure switch rear (VTP SWR)

4Neutral switch (NT SW, M/T)

5Cylinder position sensor 2 + (CYP 2P)

6Cylinder position sensor 1 + (CYP 1P)

7Crank position sensor 2 + (CKP 2P)

8Crank position sensor 1 + (CKP 1P)

9Logic ground (LG2)

10Ignition coil 5 (IGN COIL5)

11Ignition coil 4 (IGN COIL4)

12Ignition coil 3 (IGN COIL3)

13Cylinder position sensor 2 return (CYP 2M)

14Cylinder position sensor 1 return (CYP 1M)

15Crank position sensor 2 return (CKP 2M)

16Crank position sensor 1 return (CKP 1M)

ECM power source (IGP2)

ME442-C1-6 DIG_IN 1

ME442-C1-79 TACHOMETER

OEM-C

Stock ECU being replaced

1ECM power source (IGP2)

7Vehicle speed sensor (VSS)

8Engine speed pulse (NEP)

ME442-C1-54 KNOCK 2 SIGNAL

ME442-C1-86 ANA TEMP 1

ME442-C1-57 ANA TEMP 2

ME442-C1-26 ANA VOLT 1

5V ref

0V sensor

ME442-C1-18 ANA VOLT 4

ME442-C1-53 KNOCK 1 SIGNAL

ME442-C1-87 ANA VOLT 5

ME442-C1-78 ANA VOLT 6

ME442-C1-48 ANA VOLT 7

OEM-D

Stock ECU being replaced

2Knock sensor rear (KSR)

7Engine coolant temperature (ECT)

8Intake air temperature (IAT)

9MAP sensor

10Sensor 5V supply (VCC2)

11Sensor ground (SG2)

12Throttle position sensor (TPS)

13Knock sensor front (KSF)

16Front secondary O2 signal (O2S FS)

17Rear secondary O2 signal (O2S RS)

18Front primary O2 signal (O2S FP)

5V ref

0V sensor

ME442-C1-44 LOW SIDE 4

ME442-C1-8 DIG_IN 3

ME442-C1-17 ANA VOLT 3

ME442-C1-56 ANA VOLT 2

5V ref

0V sensor

ME442-C1-7 DIG_IN 2

ME442-C1-12 LOW SIDE 2

ME442-C1-74 LOW SIDE 3

OEM-F

Stock ECU being replaced

1Sensor 5V supply (VCC1)

2Sensor ground (SG1)

4Fuel pump relay 2 (FLR2)

6Brake switch 2 (BKSW2)

12Accelerator pedal position 2 (AP2)

13Accelerator pedal position 1 (AP1)

14Accelerator pedal 5V supply (VCC3)

15Accelerator pedal ground (SG3)

16Brake switch 1 (BKSW1)

19VTEC solenoid front (VT SOLF)

20VTEC solenoid rear (VT SOLR)

Throttle motor power source 1 (IGM1)

Throttle motor power source 2 (IGM2)

GND

Throttle motor common power phases 1&3 (COM1)

Throttle motor common power phases 2&4 (COM2)

OEM-G

Stock ECU being replaced

2Throttle motor power source 1 (IGM1)

3Throttle motor power source 2 (IGM2)

7Throttle motor ground 1 (PGM1)

8Throttle motor ground 2 (PGM2)

9Throttle motor common power phases 1&3 (COM1)

10Throttle motor common power phases 2&4 (COM2)

ME442

ME442-C1

ME442

1COIL 4

2COIL 3

3INJECTOR 4

4INJECTOR 2

5DIG_IN 4

6DIG_IN 1

7DIG_IN 2

8DIG_IN 3

9LOW SIDE RELAY 18

10GROUND CHASSIS

12LOW SIDE 2

13LOW SIDE RELAY 15

15IGN +12V

16LSU HEATER -VE

17ANA VOLT 3

18ANA VOLT 4

22CAM A VR+

23CAM A VR-

26ANA VOLT 1

28INJECTOR 5

31COIL 2

32COIL 1

33INJECTOR 3

34DIG_IN 6

37LOW SIDE RELAY 11

39LOW SIDE 6

40LOW SIDE RELAY 17

42LOW SIDE RELAY 12

43LOW SIDE RELAY 14

44LOW SIDE 4

455V REF

465V REF

48ANA VOLT 7

52SENSORS GROUND

53KNOCK 1 SIGNAL

54KNOCK 2 SIGNAL

56ANA VOLT 2

57ANA TEMP 2

58INJECTOR 6

59COIL 5

60COIL 6

61GROUND

62DIG_IN 5

63INJECTOR 1

64VBAT

69LOW SIDE 5

72LOW SIDE RELAY 13

73LOW SIDE 1

74LOW SIDE 3

75LOW SIDE RELAY 16

765V REF

78ANA VOLT 6

79TACHOMETER

80CRANK VR+

81CRANK VR-

84Sensor Ground

86ANA TEMP 1

87ANA VOLT 5

89GROUND

90GROUND

OEM-B-11 Ignition coil 4 (IGN COIL4)

OEM-B-12 Ignition coil 3 (IGN COIL3)

OEM-A-14 Injector 4 (INJ4)

OEM-A-2 Injector 2 (INJ2)

OEM-B-1 VTEC pressure switch front (VTP SWF)

OEM-C-7 Vehicle speed sensor (VSS)

OEM-F-16 Brake switch 1 (BKSW1)

OEM-F-6 Brake switch 2 (BKSW2)

OEM-A-7 Malfunction indicator lamp (MIL)

GND

OEM-F-19 VTEC solenoid front (VT SOLF)

OEM-A-21 EVAP purge control solenoid (PCS)

IGN +12V

OEM-A-10 Rear secondary O2 heater (RSO2SHTC)

OEM-F-12 Accelerator pedal position 2 (AP2)

OEM-D-12 Throttle position sensor (TPS)

OEM-B-6 Cylinder position sensor 1 + (CYP 1P)

OEM-B-5 Cylinder position sensor 2 + (CYP 2P)

OEM-D-9 MAP sensor

OEM-A-15 Injector 5 (INJ5)

OEM-A-24 Ignition coil 2 (IGN COIL2)

OEM-A-11 Ignition coil 1 (IGN COIL1)

OEM-A-3 Injector 3 (INJ3)

OEM-B-4 Neutral switch (NT SW, M/T)

OEM-A-23 Rear primary O2 heater (RPO2SHTC)

OEM-A-22 Front primary O2 heater (FPO2SHTC)

OEM-A-6 EGR control solenoid (ESOL)

OEM-A-9 Front secondary O2 heater (FSO2SHTC)

OEM-A-20 IAB control solenoid (IABCS)

OEM-F-4 Fuel pump relay 2 (FLR2)

5V ref

OEM-D-18 Front primary O2 signal (O2S FP)

0V sensor

OEM-D-13 Knock sensor front (KSF)

OEM-D-2 Knock sensor rear (KSR)

OEM-F-13 Accelerator pedal position 1 (AP1)

OEM-D-8 Intake air temperature (IAT)

OEM-A-16 Injector 6 (INJ6)

OEM-B-10 Ignition coil 5 (IGN COIL5)

OEM-B-2 Ignition coil 6 (IGN COIL6)

GND

OEM-B-3 VTEC pressure switch rear (VTP SWR)

OEM-A-1 Injector 1 (INJ1)

VBAT

OEM-A-8 A/C clutch relay (ACC)

OEM-A-17 EVAP bypass solenoid (2WBS)

OEM-A-5 Fuel pump relay (FLR1)

OEM-F-20 VTEC solenoid rear (VT SOLR)

OEM-A-4 EVAP canister vent shut valve (VSV)

5V ref

OEM-D-17 Rear secondary O2 signal (O2S RS)

OEM-C-8 Engine speed pulse (NEP)

OEM-B-8 Crank position sensor 1 + (CKP 1P)

OEM-B-7 Crank position sensor 2 + (CKP 2P)

0V sensor

OEM-D-7 Engine coolant temperature (ECT)

OEM-D-16 Front secondary O2 signal (O2S FS)

GND

SP-GND · 9 pins

SP-0V · 12 pins

SP-14V · 9 pins