P2340

Symptoms

• Knocking or ringing noise from the engine
• Loss of engine power
• Increased fuel consumption
• Unstable idling
• The Check Engine light comes on

Causes

• Poor quality fuel with low octane number
• Cylinder 5 knock sensor malfunction
• Problems with the ignition system (plugs, coils)
• Carbon accumulation in the combustion chamber
• Mechanical engine problems (wear of bearings, balancing shafts)

How to Fix

1. Check fuel quality and use additives if necessary
2. Diagnose and, if necessary, replace the knock sensor
3. Check the condition of the spark plugs and coils
4. Clean the combustion chamber from carbon deposits
5. Carry out computer diagnostics of the ignition timing

Related codes

Error P2340 by Vehicle Brand