P1328
Cylinder 4 Knock Control Limit Attained
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Reduced engine power
- Increased fuel consumption
- Rattling sound from engine when accelerating
- Uneven engine operation
- Check Engine light comes on
Causes
- Low quality fuel (low octane number)
- Knock sensor malfunction
- Problems with the ignition system (plugs, coils)
- Carbon accumulation in the combustion chamber
- Problems with the cooling system (engine overheating)
How to Fix
- Check fuel quality and replace if necessary
- Diagnose and, if necessary, replace the knock sensor
- Check the condition of the spark plugs and coils
- Clean the combustion chamber from carbon deposits
- Check the engine cooling system