P12FE
Cylinder Deactivation Exhaust Flow Valve Position Not Learned Bank 2
P12FE is an OBD-II diagnostic trouble code meaning: Cylinder Deactivation Exhaust Flow Valve Position Not Learned Bank 2. Common causes: mechanical failure of the flow control valve, problems with wiring or connectors. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- Decreased fuel efficiency
- Possible engine vibrations
- Reduced engine power
- The cylinder deactivation system may not work
Causes
- Mechanical failure of the flow control valve
- Problems with wiring or connectors
- Valve position sensor malfunction
- Problems with the engine control unit
- Valve dirty or stuck
How to Fix
- Check the mechanical condition of the valve
- Check the integrity of wiring and connectors
- Check the operation of the valve position sensor
- Perform Valve Relearn Procedure
- Replace flow control valve if necessary
Related codes
FAQ
What does the P12FE code mean?
P12FE is an OBD-II diagnostic trouble code that indicates: Cylinder Deactivation Exhaust Flow Valve Position Not Learned Bank 2
What causes a P12FE error code?
The most common causes of P12FE include: Mechanical failure of the flow control valve; Problems with wiring or connectors; Valve position sensor malfunction; Problems with the engine control unit.
How do I fix a P12FE diagnostic trouble code?
To fix P12FE: Check the mechanical condition of the valve. Check the integrity of wiring and connectors. Check the operation of the valve position sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P12FE?
Yes, but get it checked soon
How much does it cost to fix P12FE?
The estimated repair cost for P12FE is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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