P02BA
Cylinder 9 - Fuel Trim at Max Limit
P02BA is an OBD-II diagnostic trouble code meaning: Cylinder 9 - Fuel Trim at Max Limit. Common causes: dirty or faulty injector of cylinder 9, vacuum leak around cylinder 9. Estimated repair cost: $22–167.
Symptoms
- Unstable idle
- Loss of engine power
- Increased fuel consumption
- Dips during acceleration
Causes
- Dirty or faulty injector of cylinder 9
- Vacuum leak around cylinder 9
- Low compression in cylinder 9
- Ignition problems (spark plugs, coils)
- Oxygen sensor malfunction
- Problems with the injector wiring harness
How to Fix
- Check the intake tightness of cylinder 9
- Test the injector (rinse/replace)
- Check compression
- Inspect the spark plugs and coil
- Check oxygen sensor data
- Scan injector operating parameters
Related codes
Error P02BA by Vehicle Brand
FAQ
What does the P02BA code mean?
P02BA is an OBD-II diagnostic trouble code that indicates: Cylinder 9 - Fuel Trim at Max Limit
What causes a P02BA error code?
The most common causes of P02BA include: Dirty or faulty injector of cylinder 9; Vacuum leak around cylinder 9; Low compression in cylinder 9; Ignition problems (spark plugs, coils).
How do I fix a P02BA diagnostic trouble code?
To fix P02BA: Check the intake tightness of cylinder 9. Test the injector (rinse/replace). Check compression. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P02BA?
Limited driving only, diagnose soon
How much does it cost to fix P02BA?
The estimated repair cost for P02BA is $22–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat