P2347
Cylinder 12 Above Knock/Combustion Vibration Sensor Threshold
P2347 is an OBD-II diagnostic trouble code meaning: Cylinder 12 Above Knock/Combustion Vibration Sensor Threshold. Common causes: poor fuel quality (low octane number), spark plug fault. Estimated repair cost: $6–111.
Symptoms
- Knocking or ringing sound from the engine
- Power Loss
- Increased fuel consumption
- Unstable engine operation
- Check Engine light comes on
Causes
- Poor fuel quality (low octane number)
- Spark plug fault
- Problems with fuel injectors
- Incorrect ignition timing
- Mechanical engine damage
How to Fix
- Check fuel quality, replace if necessary
- Inspect and, if necessary, replace spark plugs
- Check the operation of the fuel injectors
- Check and adjust the ignition timing
- Conduct engine diagnostics for mechanical damage
Related codes
Error P2347 by Vehicle Brand
FAQ
What does the P2347 code mean?
P2347 is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Above Knock/Combustion Vibration Sensor Threshold
What causes a P2347 error code?
The most common causes of P2347 include: Poor fuel quality (low octane number); Spark plug fault; Problems with fuel injectors; Incorrect ignition timing.
How do I fix a P2347 diagnostic trouble code?
To fix P2347: Check fuel quality, replace if necessary. Inspect and, if necessary, replace spark plugs. Check the operation of the fuel injectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2347?
Do not drive — repair immediately
How much does it cost to fix P2347?
The estimated repair cost for P2347 is $6–111. Actual cost depends on your vehicle, location, and labor rates.
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