P03B2
Generic code
Free on OBD DashX
Want real-world data on P03B2?
See which problems come with P03B2, how often it shows up in other vehicles, and how to fix it — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
What P03B2 means
- Cylinder 3 Combustion Performance
Possible symptoms
- Perform a compression test to check for any issues with the cylinder's compression
- Check the fuel injector for any clogs or leaks
- Inspect the spark plug and replace if necessary
- Clean or replace the mass air flow sensor
- Check the ignition coil for any faults and replace if needed
Possible causes
- Spark plug failure in cylinder 3
- Ignition coil malfunction in cylinder 3
- Fuel injector issue in cylinder 3
- Low compression in cylinder 3
- Incorrect fuel mixture in cylinder 3
Possible solutions
- Misfiring or rough idle
- Loss of power or acceleration
- Increased fuel consumption
- Engine hesitation or stumbling
- Check engine light illuminating
Free on OBD DashX
P03B2 on OBD DashX
Real-world causes, how often this code shows up, and the fix — step by step.
Open P03B2 No sign-up needed · available in 10 languagesScan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.