P2C91
Crankcase Ventilation System - Hose B Disconnected
P2C91 is an OBD-II diagnostic trouble code meaning: Crankcase Ventilation System - Hose B Disconnected. Common causes: mechanical damage to the hose, loosening the hose. Estimated repair cost: $6–28.
Symptoms
- Unstable engine idling
- Reduced engine power
- Increased oil consumption
- Check Engine light comes on
- Noises from the engine area
Causes
- Mechanical damage to the hose
- Loosening the hose
- Wear of rubber joints
- Incorrect hose installation after service
- Exposure to high temperatures on the hose
How to Fix
- Visual inspection of hose B of the crankcase ventilation system
- Checking the fastenings and condition of rubber seals
- Replacing a damaged hose if necessary
- Checking the tightness of the system after repair
- Resetting the error code and test starting the engine
Related codes
Error P2C91 by Vehicle Brand
FAQ
What does the P2C91 code mean?
P2C91 is an OBD-II diagnostic trouble code that indicates: Crankcase Ventilation System - Hose B Disconnected
What causes a P2C91 error code?
The most common causes of P2C91 include: Mechanical damage to the hose; Loosening the hose; Wear of rubber joints; Incorrect hose installation after service.
How do I fix a P2C91 diagnostic trouble code?
To fix P2C91: Visual inspection of hose B of the crankcase ventilation system. Checking the fastenings and condition of rubber seals. Replacing a damaged hose if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2C91?
Yes, but get it checked soon
How much does it cost to fix P2C91?
The estimated repair cost for P2C91 is $6–28. Actual cost depends on your vehicle, location, and labor rates.
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