P0312

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2017-10-10

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Description:

• A cylinder is misfiring

Possible Symptoms:

• A hard start or crank condition.

• MIL being illuminated all the time

• Engine damage

• Traction control may fail

Possible Causes:

• Faulty spark plug (s)

• Faulty ignition coil (s)

• Clogged or faulty fuel injector (s)

• Intake Air leak

• Fuel injectors harness is open or shorted

• Fuel Injectors circuit poor electrical connection

• Ignition Coils harness is open or shorted

• Ignition Coils circuit poor electrical connection

• Insufficient cylinders compression

• Incorrect fuel pressure

Related Parts:

• Crankshaft Position Sensor: The crankshaft position sensor monitors the position of the crankshaft to regulate fuel injection. Problems lead to engine misfire and engine stalling

Possible Solutions:

• Repairs wires and/or connectors as necessary

• Replaced optical sensor

• Replaced PCM or ECM (Engine Control Module)

• Visually inspect the solenoid harness and the solenoid for damage