P231F
Cylinder 12 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance
P231F is an OBD-II diagnostic trouble code meaning: Cylinder 12 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance. Common causes: dirty or faulty fuel injectors, problems with the ignition system (plugs, coils). Estimated repair cost: $17–89.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine Light Illuminates
- Increased vibrations at idle
Causes
- Dirty or faulty fuel injectors
- Problems with the ignition system (plugs, coils)
- Vacuum leak
- Low cylinder compression
- Problems with the oxygen sensor
How to Fix
- Check the condition of the fuel injectors
- Diagnose the ignition system
- Check the tightness of the intake tract
- Measure compression in cylinders
- Check the operation of oxygen sensors
Related codes
Error P231F by Vehicle Brand
FAQ
What does the P231F code mean?
P231F is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance
What causes a P231F error code?
The most common causes of P231F include: Dirty or faulty fuel injectors; Problems with the ignition system (plugs, coils); Vacuum leak; Low cylinder compression.
How do I fix a P231F diagnostic trouble code?
To fix P231F: Check the condition of the fuel injectors. Diagnose the ignition system. Check the tightness of the intake tract. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P231F?
Yes, but get it checked soon
How much does it cost to fix P231F?
The estimated repair cost for P231F is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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