P03C2
Cylinder 5 Pressure Too Low
Generic OBD-II
Common symptoms
What you'll notice
- Check and replace spark plugs in cylinder 5
- Inspect ignition coil in cylinder 5 and replace if necessary
- Verify and clean fuel injectors in cylinder 5
- Check compression in cylinder 5 and perform necessary repairs
- Examine intake manifold for any leaks and fix accordingly
Common causes
Most likely first
- Faulty fuel injector in cylinder 5
- Low compression in cylinder 5
- Faulty spark plug in cylinder 5
- Vacuum leak in cylinder 5 intake manifold
- Faulty ignition coil in cylinder 5
How to diagnose & fix
Work through it in order
- Engine misfire or rough idle
- Loss of power or decreased performance
- Increased fuel consumption
- Engine overheating
- Engine stalling or hesitation
Read & clear P03C2 yourself
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