Hi guy's my 05 mini is running a little rough it seem's like one of the cyl's is not firing all the time, i have changed he spark plug's the dash light for Deterioration in exhaust emission values has started to flash on and off The A.B.S. light is on but the disc's are showing sign's of wear so should that light be on because of the wear or do i have another problem ? Thank's for any help.

 

if one of the cylanders is not firing, you will have a check engine lite. the code will show a misfire when you attach a scanner to the ODBC port.

What code do you get?