P03B5

2017-10-10

Description:

  • Cylinder 4 Pressure Sensor Circuit Low

Possible Symptoms:

  • Check and replace faulty cylinder 4 pressure sensor

  • Inspect and repair any damaged or loose wiring connections related to the cylinder 4 pressure sensor

  • Clean or replace dirty or clogged fuel injectors for cylinder 4

  • Verify proper fuel pressure for cylinder 4 and address any fuel delivery issues if found

  • Perform an engine compression test to identify any potential internal engine problems related to cylinder 4

Possible Causes:

  • Faulty cylinder 4 pressure sensor

  • Loose or damaged wiring connections in the cylinder 4 pressure sensor circuit

  • Low engine oil level in the cylinder 4

  • Engine misfire in cylinder 4

  • Faulty engine control module (ECM)

Related Parts:

Possible Solutions:

  • Decreased engine performance or power

  • Misfires or rough idling when the engine is running

  • Engine hesitation or stumbling during acceleration

  • Reduced fuel efficiency or increased fuel consumption

  • Illumination of the check engine light or OBD 2 error code related to cylinder 4 pressure sensor circuit low.

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