P03C2

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

1. Check compression in cylinder 5
2. Inspect the spark plugs and coil
3. Check the condition of the fuel injector
4. Diagnose the condition of valves and piston group
5. If necessary, replace worn parts

Related codes

Error P03C2 by Vehicle Brand