DELPHI EFI ELECTRICAL COMPONENTS Electronic Control Unit (ECU) Pinout of ECU Pinout of ECU 27 24 690 01 Rev.
D KohlerEngines.com Grey Connector Pin # Description 1 No t Used 2 No t Used 3 Ma lfunction Indicator Light (MIL) Ground 4 No t Used 5 No t Used 6 No t Used 7 No t Used 8 No t Used 9 Ba ttery Ground 10 Ign ition Coil #2 Ground 11 No t Used 12 No t Used 13 No t Used 14 Sa fety Switch Ground 15 No t Used 16 EC U 17 Fu el Pump Control (+12V) 18 No t Used Black Connector Pin # Function 1 Ignition Coil #1 Ground 2 Battery Ground 3 Diagnostic Communication Line 4 Speed Sensor input 5 Fuel Injector Output #1 Ground 6 Fuel Injector Output #2 Ground 7 Oxygen Sensor Heater 8 Intake Air Temperature (IAT) sensor input 9 Fuel Pump Ground 10 Ground for IAT, TPS, MAP, O2 and Oil Sensors 11 Manifold Absolute Pressure (MAP) sensor input 12 Throttle Position Sensor (TPS) input 13 Speed Sensor Ground 14 Oil Temperature Sensor input 15 Ignition Switch (Switched +12V) 16 Power for TPS and MAP Sensors (+5V) 17 Oxygen Sensor (O2) input 18 Battery Power (Permanent +12V)