P02B3
Cylinder 7 - Fuel Trim at Min Limit
P02B3 is an OBD-II diagnostic trouble code meaning: Cylinder 7 - Fuel Trim at Min Limit. Common causes: faulty fuel injector of cylinder 7, vacuum leak in cylinder 7. Estimated repair cost: $56–167.
Symptoms
- Misfire in cylinder 7
- Unstable idle
- Reduced engine power
- Increased fuel consumption
Causes
- Faulty fuel injector of cylinder 7
- Vacuum leak in cylinder 7
- Problems with the ignition system (plugs, coils)
- Oxygen sensor dirty
- Malfunction of the mass air flow sensor (MAF)
How to Fix
- Check the fuel injector of cylinder 7 (clean/replace)
- Diagnose vacuum leaks around cylinder 7
- Check the condition of the spark plugs and coils
- Clean or replace the oxygen sensor
- Check the MAF readings for compliance with the standard
Related codes
Error P02B3 by Vehicle Brand
FAQ
What does the P02B3 code mean?
P02B3 is an OBD-II diagnostic trouble code that indicates: Cylinder 7 - Fuel Trim at Min Limit
What causes a P02B3 error code?
The most common causes of P02B3 include: Faulty fuel injector of cylinder 7; Vacuum leak in cylinder 7; Problems with the ignition system (plugs, coils); Oxygen sensor dirty.
How do I fix a P02B3 diagnostic trouble code?
To fix P02B3: Check the fuel injector of cylinder 7 (clean/replace). Diagnose vacuum leaks around cylinder 7. Check the condition of the spark plugs and coils. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P02B3?
Limited driving only, diagnose soon
How much does it cost to fix P02B3?
The estimated repair cost for P02B3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat