P051F
PCV Filter Restriction
P051F is an OBD-II diagnostic trouble code meaning: PCV Filter Restriction. Common causes: pcv filter dirty, crankcase ventilation system clogged. Estimated repair cost: $56–167.
Symptoms
- Increased oil consumption
- Unstable idle
- Reduced engine power
- Appearance of oil in the intake manifold
- Check Engine Light Illuminates
Causes
- PCV filter dirty
- Crankcase ventilation system clogged
- Mechanical damage to the PCV filter
- Using low-quality oil or not replacing it in a timely manner
How to Fix
- Diagnose the PCV system
- Stop the engine and let it cool down
- Remove and inspect the PCV filter
- Replace a dirty or damaged PCV filter
- Check the condition of the oil and replace if necessary
- Clean the crankcase ventilation system
- Reset the error code and check if it appears again
Related codes
Error P051F by Vehicle Brand
FAQ
What does the P051F code mean?
P051F is an OBD-II diagnostic trouble code that indicates: PCV Filter Restriction
What causes a P051F error code?
The most common causes of P051F include: PCV filter dirty; Crankcase ventilation system clogged; Mechanical damage to the PCV filter; Using low-quality oil or not replacing it in a timely manner.
How do I fix a P051F diagnostic trouble code?
To fix P051F: Diagnose the PCV system. Stop the engine and let it cool down. Remove and inspect the PCV filter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P051F?
Do not drive — repair immediately
How much does it cost to fix P051F?
The estimated repair cost for P051F is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat