P03C1

2017-10-10

Description:

  • Cylinder 5 Pressure Sensor Circuit Intermittent/Erratic

Possible Symptoms:

  • Check and replace the cylinder 5 pressure sensor

  • Inspect and repair any loose or damaged wiring connections related to the sensor circuit

  • Verify and rectify any issues with the sensor circuit's power supply and ground connections

  • Update or reprogram the engine control module (ECM) software to ensure proper communication with the sensor

  • If all else fails, consider replacing the ECM itself

Possible Causes:

  • Loose or damaged wiring or connectors in the cylinder 5 pressure sensor circuit

  • Faulty cylinder 5 pressure sensor

  • Engine misfire in cylinder 5

  • Low fuel pressure in cylinder 5

  • Faulty Engine Control Unit (ECU) or Powertrain Control Module (PCM)

Related Parts:

Possible Solutions:

  • Rough or uneven engine idle

  • Engine misfires or hesitation during acceleration

  • Decreased engine power or performance

  • Illuminated check engine light

  • Poor fuel efficiency

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