P23F5
Cylinder 4 Injector B Air-Fuel Ratio Imbalance
P23F5 is an OBD-II diagnostic trouble code meaning: Cylinder 4 Injector B Air-Fuel Ratio Imbalance. Common causes: cylinder 4 injector malfunction, injector contamination. Estimated repair cost: $17–89.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Power Loss
- Dips during acceleration
- Check Engine Light Illuminates
Causes
- Cylinder 4 injector malfunction
- Injector contamination
- Problems with the injector electrical circuit
- Low fuel pressure
- Engine control unit malfunction
How to Fix
- Check the condition of the cylinder 4 injector
- Clean or replace the injector if necessary
- Check the injector electrical circuit
- Check fuel pressure
- Scan the engine control unit for errors
Related codes
Error P23F5 by Vehicle Brand
FAQ
What does the P23F5 code mean?
P23F5 is an OBD-II diagnostic trouble code that indicates: Cylinder 4 Injector B Air-Fuel Ratio Imbalance
What causes a P23F5 error code?
The most common causes of P23F5 include: Cylinder 4 injector malfunction; Injector contamination; Problems with the injector electrical circuit; Low fuel pressure.
How do I fix a P23F5 diagnostic trouble code?
To fix P23F5: Check the condition of the cylinder 4 injector. Clean or replace the injector if necessary. Check the injector electrical circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P23F5?
Yes, but get it checked soon
How much does it cost to fix P23F5?
The estimated repair cost for P23F5 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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