P04E3

2017-10-10

Description:

  • Crankcase Ventilation Hose Connection Sensor Circuit High

Possible Symptoms:

  • Inspect and repair any loose or damaged connections in the crankcase ventilation hose.

  • Clean or replace the crankcase ventilation hose to ensure proper airflow.

  • Check and replace the sensor circuit if necessary.

  • Inspect the engine for any oil or debris buildup that may be affecting the sensor readings.

  • Reset the vehicle's computer system to clear any error codes and see if the issue persists.

Possible Causes:

  • Loose or disconnected crankcase ventilation hose

  • Faulty crankcase ventilation sensor

  • High resistance or open circuit in the sensor circuit

  • Sensor circuit wiring harness damaged or shorted

  • Faulty engine control module (ECM) or powertrain control module (PCM)

Related Parts:

Possible Solutions:

  • Check Engine Light (CEL) illuminates on the dashboard

  • Decreased engine performance or power

  • Rough idling or stalling of the engine

  • Increased fuel consumption

  • Engine misfires or hesitates

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