OBD Guide

P2342

Cylinder 7 Above Knock/Combustion Vibration Sensor Threshold

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Knocking or ringing sound from the engine
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Check Engine Light Illuminates

Causes

  • Poor fuel quality (low octane number)
  • Cylinder 7 knock sensor malfunction
  • Problems with the ignition system (plugs, coils)
  • Incorrect ignition timing
  • Carbon accumulation in the combustion chamber

How to Fix

  1. Check fuel quality and replace if necessary
  2. Diagnose and, if necessary, replace the knock sensor of cylinder 7
  3. Check the condition of the spark plugs and coils
  4. Adjust the ignition timing
  5. Clean the combustion chamber from carbon deposits

Related codes

Error P2342 by Vehicle Brand