Hello I have a problem with my 2008 cooper s when it's running on tick over it is ok but as soon as you touch the throttle it starts to flutter but when you drive it like you stole it there is no problem it has recently within the last month had the hpfp changed to a new one the timing chain has been done and the timing checked and today all the inlet valves have been cleaned
The car has plenty of power when floored but is lumpy when you drive steady any body any ideas
The car has plenty of power when floored but is lumpy when you drive steady any body any ideas