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

ELITE1500-A-19 INJ 1

ELITE1500-A-22 INJ 4

ELITE1500-A-25 DPO 6 (ECR out)

ELITE1500-A-24 DPO 5 (fuel pump trigger)

ELITE1500-A-32 Stepper 1 P2 / DPO

ELITE1500-A-31 Stepper 1 P1 / DPO

5V ref

ELITE1500-A-16 AVI 2

ELITE1500-B-13 AVI 1 (O2 Input 2)

ELITE1500-A-22 INJ 4

5V ref

PCM power feed (VPWR, fused)

0V sensor

ELITE1500-B-3 AVI 7 (Air Temp)

ELITE1500-B-7 SPI 4

ELITE1500-A-20 INJ 2

5V ref

0V sensor

ELITE1500-B-9 SPI 2

ELITE1500-B-10 SPI 3

ELITE1500-A-2 AVI 4

ELITE1500-B-20 AVI 5

ELITE1500-A-21 INJ 3

ELITE1500-A-17 AVI 3

ELITE1500-B-12 AVI 6 (O2 Input 1)

0V sensor

ELITE1500-B-21 KNOCK 1

0V sensor

ELITE1500-B-2 Cam (Home) (+)

ELITE1500-B-8 SPI 1

ELITE1500-B-4 AVI 8 (Coolant Temp)

ELITE1500-A-21 INJ 3

ELITE1500-A-20 INJ 2

0V sensor

ELITE1500-B-1 Crank (Trigger) (+)

ELITE1500-A-33 Stepper 1 P3 / DPO

ELITE1500-A-18 DPO 1

ELITE1500-A-1 DPO 2

ELITE1500-B-26 DBW 2 / DPO

ELITE1500-B-25 DBW 1 / DPO

ELITE1500-A-23 DPO 3

ELITE1500-B-19 DPO 4

ELITE1500-A-3 IGN 1

ELITE1500-A-4 IGN 2

ELITE1500-A-5 IGN 3

ELITE1500-A-6 IGN 4

OEM-C175E

Stock ECU being replaced

1Fuel injector driver 1 (INJ 1)

2Fuel injector driver 5 (INJ 5)

3Fuel injector driver 4 (INJ 4)

4Variable camshaft timing valve 2 (VCT2)

5Variable camshaft timing valve 1 (VCT1)

6Variable camshaft timing valve 4 (VCT4)

7Variable camshaft timing valve 3 (VCT3)

8Electronic throttle control reference (ETCREF)

9Throttle position positive slope (TP2-PS)

10Throttle position negative slope (TP1-NS)

16Fuel injector driver 8 (INJ 8)

17Buffered power supply sensors (VBPWR)

18PCM power feed (VPWR, fused)

23Electronic throttle control return (ETCRTN)

27Intake air temperature (IAT)

30Engine oil level switch (EOL)

31Fuel injector driver 6 (INJ 6)

34Voltage reference engine (VREF)

40VR sensor return (VRSRTN)

41Camshaft position bank 2 (CMP2)

42Camshaft position bank 2 exhaust (CMP2 EX)

44Intake manifold monitor (IMM)

45Intake port deactivation valve position

46Fuel injector driver 3 (INJ 3)

47Cylinder head temperature (CHT)

48Oil pressure switch

49Signal return engine #2

52Knock sensor 1 bank 1 return (KS1−)

53Knock sensor 1 bank 1 signal (KS1+)

54VR sensor return (VRSRTN)

55Camshaft position bank 1 (CMP1)

56Camshaft position bank 1 exhaust (CMP1 EX)

57Oil pressure switch (MTX)

61Fuel injector driver 7 (INJ 7)

62Fuel injector driver 2 (INJ 2)

67Knock sensor 2 bank 1 return (KS2−)

69Crankshaft position return (CKP−)

70Crankshaft position (CKP+)

71Canister purge valve (CANP)

78Heater O2 post-cat 1st (HTR12)

79Heater O2 pre-cat 1st (HTR11)

81Throttle actuator control motor − (TACM−)

82Throttle actuator control motor + (TACM+)

83Heater O2 post-cat 2nd (HTR22)

84Heater O2 pre-cat 2nd (HTR21)

87Ignition coil on plug G (COP-G)

88Ignition coil on plug F (COP-F)

89Ignition coil on plug E (COP-E)

90Ignition coil on plug H (COP-H)

ELITE1500

ELITE1500-A

ELITE1500

1DPO 2

2AVI 4

3IGN 1

4IGN 2

5IGN 3

6IGN 4

9+5V DC

16AVI 2

17AVI 3

18DPO 1

19INJ 1

20INJ 2

21INJ 3

22INJ 4

23DPO 3

24DPO 5 (fuel pump trigger)

25DPO 6 (ECR out)

26ECU injector power input

31Stepper 1 P1 / DPO

32Stepper 1 P2 / DPO

33Stepper 1 P3 / DPO

OEM-C175E-79 Heater O2 pre-cat 1st (HTR11)

OEM-C175E-44 Intake manifold monitor (IMM)

OEM-C175E-87 Ignition coil on plug G (COP-G)

OEM-C175E-88 Ignition coil on plug F (COP-F)

OEM-C175E-89 Ignition coil on plug E (COP-E)

OEM-C175E-90 Ignition coil on plug H (COP-H)

5V ref

OEM-C175E-9 Throttle position positive slope (TP2-PS)

OEM-C175E-47 Cylinder head temperature (CHT)

OEM-C175E-78 Heater O2 post-cat 1st (HTR12)

Fuel injector driver 5 (INJ 5) · 2 pins

INJ 2 · 2 pins

Fuel injector driver 3 (INJ 3) · 2 pins

Fuel injector driver 4 (INJ 4) · 2 pins

OEM-C175E-83 Heater O2 post-cat 2nd (HTR22)

OEM-C175E-5 Variable camshaft timing valve 1 (VCT1)

OEM-C175E-4 Variable camshaft timing valve 2 (VCT2)

ECU injector power input

OEM-C175E-7 Variable camshaft timing valve 3 (VCT3)

OEM-C175E-6 Variable camshaft timing valve 4 (VCT4)

OEM-C175E-71 Canister purge valve (CANP)

ELITE1500-B

ELITE1500

1Crank (Trigger) (+)

2Cam (Home) (+)

3AVI 7 (Air Temp)

4AVI 8 (Coolant Temp)

5Crank (Trigger) (−)

6Cam (Home) (−)

7SPI 4

8SPI 1

9SPI 2

10SPI 3

11+13.8V ECU supply

12AVI 6 (O2 Input 1)

13AVI 1 (O2 Input 2)

14Signal ground

15Signal ground

16Signal ground

19DPO 4

20AVI 5

21KNOCK 1

25DBW 1 / DPO

26DBW 2 / DPO

OEM-C175E-70 Crankshaft position (CKP+)

OEM-C175E-55 Camshaft position bank 1 (CMP1)

OEM-C175E-27 Intake air temperature (IAT)

OEM-C175E-57 Oil pressure switch (MTX)

SP-0V · 7 pins

OEM-C175E-30 Engine oil level switch (EOL)

OEM-C175E-56 Camshaft position bank 1 exhaust (CMP1 EX)

OEM-C175E-41 Camshaft position bank 2 (CMP2)

OEM-C175E-42 Camshaft position bank 2 exhaust (CMP2 EX)

+13.8V ECU supply

OEM-C175E-48 Oil pressure switch

OEM-C175E-10 Throttle position negative slope (TP1-NS)

0V sensor

OEM-C175E-84 Heater O2 pre-cat 2nd (HTR21)

OEM-C175E-45 Intake port deactivation valve position

OEM-C175E-53 Knock sensor 1 bank 1 signal (KS1+)

OEM-C175E-82 Throttle actuator control motor + (TACM+)

OEM-C175E-81 Throttle actuator control motor − (TACM−)

SP-5V1 · 5 pins

SP-14V · 4 pins

SP-0V · 13 pins