P03B3

2017-10-10

Description:

  • Cylinder 4 Pressure Sensor Circuit

Possible Symptoms:

  • Check the wiring and connections of the cylinder 4 pressure sensor circuit

  • Inspect the cylinder 4 pressure sensor for any damage or malfunctions

  • Clean or replace the cylinder 4 pressure sensor if necessary

  • Check and adjust the engine timing or ignition system

  • Perform a compression test on cylinder 4 to check for any potential issues

Possible Causes:

  • Faulty or malfunctioning cylinder 4 pressure sensor

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

  • Cylinder 4 fuel injector clogged or malfunctioning

  • Low fuel pressure in cylinder 4

  • Issues with the engine control module (ECM) related to cylinder 4

Related Parts:

Possible Solutions:

  • Engine misfire, especially when accelerating or idling

  • Rough or uneven engine idle

  • Decreased engine performance or power

  • Difficulty starting the engine

  • Illuminated check engine light

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