Operation CHARM: Car repair manuals for everyone.

P0303

Test 1 - 4:




Test 5 - 9:




Test 10:






SYMPTOM
P0303-CYLINDER # 3 MISFIRE

TEST NOTE
This symptom is diagnosed using the test P0300-MULTIPLE CYLINDER MISFIRE.

POSSIBLE CAUSES
- Low fuel
- Other DTC's
- Damaged fuel lines
- Valve train
- Obstructed fuel injector supply lines
- Damaged or obstructed high pressure connectors
- External damaged fuel injectors
- Internal damaged fuel injector
- No compression
- Excessive engine leak down