P02AA
Cylinder 5 - Fuel Trim at Max Limit
P02AA is an OBD-II diagnostic trouble code meaning: Cylinder 5 - Fuel Trim at Max Limit. Common causes: dirty or faulty injector of cylinder 5, air leak in intake manifold. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Reduced engine power
- Misfire in cylinder 5
Causes
- Dirty or faulty injector of cylinder 5
- Air leak in intake manifold
- Malfunction of the oxygen sensor (lambda probe)
- Problems with the mass air flow sensor (MAF)
- Exhaust gas recirculation (EGR) system malfunction
How to Fix
- Check the injector of cylinder 5 for contamination or malfunction
- Check the tightness of the intake manifold and pipes
- Check the operation of the oxygen sensor and mass air flow sensor
- Clean or replace the nozzle if necessary
- Check the EGR system for malfunctions
Related codes
Error P02AA by Vehicle Brand
FAQ
What does the P02AA code mean?
P02AA is an OBD-II diagnostic trouble code that indicates: Cylinder 5 - Fuel Trim at Max Limit
What causes a P02AA error code?
The most common causes of P02AA include: Dirty or faulty injector of cylinder 5; Air leak in intake manifold; Malfunction of the oxygen sensor (lambda probe); Problems with the mass air flow sensor (MAF).
How do I fix a P02AA diagnostic trouble code?
To fix P02AA: Check the injector of cylinder 5 for contamination or malfunction. Check the tightness of the intake manifold and pipes. Check the operation of the oxygen sensor and mass air flow sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P02AA?
Limited driving only, diagnose soon
How much does it cost to fix P02AA?
The estimated repair cost for P02AA is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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