P1997
Friction Too High Exhaust Camshaft Adjustment Bank 1
P1997 is an OBD-II diagnostic trouble code meaning: Friction Too High Exhaust Camshaft Adjustment Bank 1. Common causes: contaminated or poor quality engine oil, wear of vvt system components. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine idling
- Noises from the timing belt area
Causes
- Contaminated or poor quality engine oil
- Wear of VVT system components
- Malfunction of the timing solenoid
- Clogged oil channels
- Mechanical damage to the VVT mechanism
How to Fix
- Check the level and condition of the engine oil
- Change oil and oil filter if necessary
- Check VVT solenoid operation
- Diagnose the mechanism for changing timing phases
- Replace VVT system components if necessary
Related codes
FAQ
What does the P1997 code mean?
P1997 is an OBD-II diagnostic trouble code that indicates: Friction Too High Exhaust Camshaft Adjustment Bank 1
What causes a P1997 error code?
The most common causes of P1997 include: Contaminated or poor quality engine oil; Wear of VVT system components; Malfunction of the timing solenoid; Clogged oil channels.
How do I fix a P1997 diagnostic trouble code?
To fix P1997: Check the level and condition of the engine oil. Change oil and oil filter if necessary. Check VVT solenoid operation. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1997?
Limited driving only, diagnose soon
How much does it cost to fix P1997?
The estimated repair cost for P1997 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat