P03C2
Cylinder 5 Pressure Too Low
P03C2 is an OBD-II diagnostic trouble code meaning: Cylinder 5 Pressure Too Low. Common causes: piston ring wear, damage to valves or valve guides. Estimated repair cost: $56–333.
Symptoms
- Misfire in cylinder 5
- Reduced engine power
- Unstable idling
- Increased fuel consumption
Causes
- Piston ring wear
- Damage to valves or valve guides
- Compression leak through cylinder head gasket
- Malfunction of the fuel injector of cylinder 5
- Problems with the ignition coil or spark plug
- Contamination or coking of the cylinder
How to Fix
- Check compression in cylinder 5
- Inspect the spark plugs and coil
- Check the condition of the fuel injector
- Diagnose the condition of valves and piston group
- If necessary, replace worn parts
Related codes
Error P03C2 by Vehicle Brand
FAQ
What does the P03C2 code mean?
P03C2 is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Pressure Too Low
What causes a P03C2 error code?
The most common causes of P03C2 include: Piston ring wear; Damage to valves or valve guides; Compression leak through cylinder head gasket; Malfunction of the fuel injector of cylinder 5.
How do I fix a P03C2 diagnostic trouble code?
To fix P03C2: Check compression in cylinder 5. Inspect the spark plugs and coil. Check the condition of the fuel injector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P03C2?
Limited driving only, diagnose soon
How much does it cost to fix P03C2?
The estimated repair cost for P03C2 is $56–333. Actual cost depends on your vehicle, location, and labor rates.
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