p0012 code on 08 clubman

[coopcoop]

p0012 code keeps popping up. engine light comes on and off. i went from 37 mpg to 33.6. what is a p0012 code and how much is this going to cost. 2008 mini cooper clubman(non-turbo) 60,000 miles. auto

just an estimate to see what i am looking at. thx for anyones help.

[bad venge]

'Camshaft Position Actuator A - Bank 1 Timing Over-Retard'
If the red light is on STOP driving immediately. If the yellow light is on OK

I've seen some folks have a low oil causing the trouble , Others have had solenoid or actuator motors or can sensor issues

[coopcoop]

what would be an estimate on this?