P02A6
Cylinder 4 - Fuel Trim at Max Limit
P02A6 is an OBD-II diagnostic trouble code meaning: Cylinder 4 - Fuel Trim at Max Limit. Common causes: malfunction of the fuel injector of cylinder 4, air leak in intake manifold. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Misfire in cylinder 4
Causes
- Malfunction of the fuel injector of cylinder 4
- Air leak in intake manifold
- Dirty or faulty oxygen sensor
- Compression problems in cylinder 4
- Malfunction of the mass air flow sensor (MAF)
- Fuel filter clogged
How to Fix
- Check the condition of the fuel injector of cylinder 4
- Check the intake manifold for leaks
- Check the operation of the oxygen sensors and mass air flow sensor
- Measure compression in cylinder 4
- Check the condition of the fuel filter
- Clean or replace faulty components
Related codes
Error P02A6 by Vehicle Brand
FAQ
What does the P02A6 code mean?
P02A6 is an OBD-II diagnostic trouble code that indicates: Cylinder 4 - Fuel Trim at Max Limit
What causes a P02A6 error code?
The most common causes of P02A6 include: Malfunction of the fuel injector of cylinder 4; Air leak in intake manifold; Dirty or faulty oxygen sensor; Compression problems in cylinder 4.
How do I fix a P02A6 diagnostic trouble code?
To fix P02A6: Check the condition of the fuel injector of cylinder 4. Check the intake manifold for leaks. Check the operation of the oxygen sensors and mass air flow sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P02A6?
Limited driving only, diagnose soon
How much does it cost to fix P02A6?
The estimated repair cost for P02A6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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