P0014 "B" Camshaft position - Timing over-advanced or system performance.
No oil pressure problem.
No oil sludge or varnish, clean.
New camshaft reset valve.
What could cause the code, the volvo drives normal with good gas mileage?
The light has been reset many times (6) and the code sets after the check point tests.
Oil is not an issue, I use synthetic 5w30 and 10W30.

Any Ideas?

 

When I changed my timing belt and it was off one tooth on the cam, it threw me this code, but the car did run fine. I had to slip the belt off and rotate cam just that one slot and the code disappeared.
Did you have the belt changed recently? What mileage did you change it at? If you didn't change the belt yet, perhaps it will break very soon.