P2336 Fault Code

P2336 OBD-II Trouble Code Short Description

Cylinder 1 Above Knock Threshold

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What does trouble code P2336 mean?

The P2336 fault code indicates that the Engine Control Module (ECM) has detected that the knock sensor for Cylinder 1 is registering readings that exceed the predefined knock threshold. This can lead to performance issues as the engine timing may need to be adjusted to prevent engine damage.

Symptoms

What are the symptoms of the P2336 code?

  • Reduced engine performance
  • Poor fuel economy
  • Engine knocking or pinging sounds
  • Illumination of the check engine light
  • Possible engine misfires

Causes

What causes the P2336 code?

  • Faulty knock sensor
  • Wiring issues or damaged connectors to the sensor
  • Engine detonation or abnormal combustion
  • Issues with the ECM or its programming
  • Mechanical problems in the engine such as carbon buildup

Possible Solutions

How to fix P2336?

  • Inspect the knock sensor and replace if faulty
  • Check and repair any damaged wiring or connectors
  • Clean carbon deposits from the combustion chamber if present
  • Reprogram or replace the ECM if necessary
  • Test drive the vehicle to ensure the issue is resolved
P2336 Cylinder 1 Above Knock Threshold