Hi, I have a 2007 Mini Cooper R56 that started to play up on the way to work last, firstly it dropped in revs and cut out when at junctions or lights there was no engine light on at this point. I managed to drive the car to the garage where the put it on a diagnostic machine , the error code was P0012 & P0011 this I believe is sensors the mechanic cleaned out both sensors and switched them. I drove the car home and all seemed fine until the next morning when on starting the car it panted and reved a little the engine light then came on . I took it back to the garage and have the same code readings. Can anybody please help or have any idea what it can be. Many thanks