Free DTC page
P0303: Cylinder 3 Misfire Detected
The PCM detected repeated combustion misses on cylinder 3.
Common causes
- Cylinder 3 coil or plug
- Injector issue
- Fuel pressure problem
- Compression fault
This free page explains the code. A Shop Brief adapts the next steps to your year, make, model, and full code stack.
Related codes:
P0300P0301P0304 Pricing Sample brief