Hello folks;
I have 2008 R56 Base Mini Cooper with 133000 miles on it. the check engine light came on few weeks ago (And i can hear the engine revs sometime when idling or when going down hills). I checked for code and it came with P2091 so i replaced both VVT Solenoids and both cam shaft sensors but the light stays on. I did unplug the battery and plugged it back in and the light stays so i cleared the code and then within a very short period of time when i started the vehicle the engine light came on again and i still hear the engine revs while idling once or twice but the weird thing now is when i try to check for a code nothing came up and it says car is OK.
The car is driving fine but i can't seem to be able to get rid of the check engine light and also i can feel something wrong because the issue with the idle engine revving is weird (Although the revving happens always once or twice only).

Any help would be greatly appreciated

 

Maybe try a different scan tool?