P02B2
Cylinder 7 - Fuel Trim at Max Limit
P02B2 is an OBD-II diagnostic trouble code meaning: Cylinder 7 - Fuel Trim at Max Limit. Common causes: clogged/faulty injector of cylinder 7, vacuum leak in the intake manifold (gaskets, torn hoses). Estimated repair cost: $33–278.
Symptoms
- Power Loss
- Unstable idle
- Increased fuel consumption
- Misfire in cylinder 7
Causes
- Clogged/faulty injector of cylinder 7
- Vacuum leak in the intake manifold (gaskets, torn hoses)
- Low pressure in the fuel system
- Oxygen sensor malfunction
- Problems with the piston group or valves of cylinder 7
How to Fix
- Check fuel pressure
- Assess the condition of the injectors (performance test, cleaning)
- Check the tightness of the intake port on cylinder 7
- Scan data from oxygen sensor
- If necessary, perform a compression test on cylinder 7
Related codes
Error P02B2 by Vehicle Brand
FAQ
What does the P02B2 code mean?
P02B2 is an OBD-II diagnostic trouble code that indicates: Cylinder 7 - Fuel Trim at Max Limit
What causes a P02B2 error code?
The most common causes of P02B2 include: Clogged/faulty injector of cylinder 7; Vacuum leak in the intake manifold (gaskets, torn hoses); Low pressure in the fuel system; Oxygen sensor malfunction.
How do I fix a P02B2 diagnostic trouble code?
To fix P02B2: Check fuel pressure. Assess the condition of the injectors (performance test, cleaning). Check the tightness of the intake port on cylinder 7. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P02B2?
Limited driving only, diagnose soon
How much does it cost to fix P02B2?
The estimated repair cost for P02B2 is $33–278. Actual cost depends on your vehicle, location, and labor rates.
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