P0311

2017-10-10

Description:

  • The fault code P0311 indicates that there is a misfire in cylinder 11. This may cause a noticeable decrease in engine performance and can potentially damage the engine over time.

Possible Symptoms:

  • Decreased engine performance

  • Illuminated check engine light

  • Rough idle or stalling

  • Engine vibration or shaking

Possible Causes:

  • Faulty spark plug in cylinder 11

  • Ignition coil malfunction in cylinder 11

  • Clogged or dirty fuel injector in cylinder 11

  • Low fuel pressure causing a lean condition in cylinder 11

  • Vacuum leak near cylinder 11

  • Failed engine control module (ECM)

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:

  • Replace the spark plug in cylinder 11

  • Replace the ignition coil in cylinder 11

  • Clean or replace the fuel injector in cylinder 11

  • Check and repair any vacuum leaks near cylinder 11

  • Check fuel pressure and replace fuel pump or regulator if necessary

  • Replace the engine control module (ECM) if necessary

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