P23FE
Bank 1 System B Air-Fuel Ratio Imbalance
P23FE is an OBD-II diagnostic trouble code meaning: Bank 1 System B Air-Fuel Ratio Imbalance. Common causes: air leaks in the intake tract, malfunction of fuel injectors. Estimated repair cost: $17–89.
Symptoms
- Increased fuel consumption
- Reduced engine power
- Unstable engine idling
- Check Engine Light Illuminates
- Increase in harmful emissions
Causes
- Air leaks in the intake tract
- Malfunction of fuel injectors
- Problems with oxygen sensors
- Contamination or malfunction of the air flow sensor
- EVAP system leaking
How to Fix
- Check the intake tract for air leaks
- Diagnose the condition of fuel injectors
- Check the functionality of the oxygen sensors
- Clean or replace the mass air flow sensor
- Check the EVAP system for leaks
Related codes
Error P23FE by Vehicle Brand
FAQ
What does the P23FE code mean?
P23FE is an OBD-II diagnostic trouble code that indicates: Bank 1 System B Air-Fuel Ratio Imbalance
What causes a P23FE error code?
The most common causes of P23FE include: Air leaks in the intake tract; Malfunction of fuel injectors; Problems with oxygen sensors; Contamination or malfunction of the air flow sensor.
How do I fix a P23FE diagnostic trouble code?
To fix P23FE: Check the intake tract for air leaks. Diagnose the condition of fuel injectors. Check the functionality of the oxygen sensors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P23FE?
Yes, but get it checked soon
How much does it cost to fix P23FE?
The estimated repair cost for P23FE is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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