OBD
P2365
Cylinder 11 Combustion Performance
What it means
P2365 means Cylinder 11 Combustion Performance.
Check these first
- A fouled spark plug or weak coil on cylinder 11
- A clogged cylinder 11 fuel injector
- Low compression in cylinder 11
- A vacuum leak feeding cylinder 11
What to do next
- Read misfire counters and cylinder 11 balance on a scan tool
- Inspect the cylinder 11 spark plug and coil
- Test the cylinder 11 fuel injector
- Perform a compression test on cylinder 11
- Repair the cylinder 11 fault found and recheck
- Clear the code and retest
Look up another code
Enter a full code or a symptom. Press / to search. How to read a code
Type a code above, or start from a symptom or a common code.
Updated
Generic SAE J2012 definition. Last updated 2026-10-10.