ENGINE 273 MPFI 251 ENGINE ECU Pin Assignment Details: Pin Signal Wire No Colour Power Feeds 9 Ignition Switch Y/R 6 Throttle Position Sensor Supply BR/G 7 Manifold Pressure Sensor Supply V/R 53 Battery Input Voltage R Grounds 30 Water Temperature Sensor Ground BR/W 31 UpstreamOxygen Sensor Ground V 42 Manifold Pressure Sensor Ground W/G 50 Battery Ground 3 BR 51 Battery Ground 1 BR 52 Battery Ground 2 BR Inputs – Digital 28 AC Request Input L 45 Vehicle Speed Sensor R/W 40 Reverse Gear Input for CVT - Application Inputs – Analog 10 Throttle Position Sensor V 11 Reserve Pin - 12 DownstreamOxygen Sensor - 22 Manifold Pressure Sensor Signal W/O 24 ManifoldAir Temperature Sensor W/Y 27 Crank Shaft Sensor - P 29 Knock Sensor (Package Protected) - Pin Signal Wire No Colour Outputs - Digital 2 Main Relay Driver Y/BR 3 CKNL Y 4 Cooling Fan Relay Driver 1 W/B 5 Injector 1 L/G 8 Reserve Pin - 14 UpstreamOxygen Heater P 15 Canister Purge Driver Y/L 16 Injector 2 Y/G 18 AC Compressor Relay Driver GY/W 19 Fuel Pump Relay W/G 20 Coolant Temperature Output G/L 21 Reserve Pin 25 Stepper Driver D LG/O 26 Stepper Driver C R/L 37 Stepper DriverA G/R 38 Stepper Driver B W/V 49 AC Fan Relay G/R 54 Reserve Pin - 55 Ignition Coil L Outputs - Analog - - - Communication 34 K Line R/G 35 CAN - Application - 36 CAN + - 47 CAN + Application - 48 CAN - -
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