Has anybody found an answer to the Punto Mk 2 1.2 8valve 2000 Erratic idle ? I have renewed - the complete throttle body , & the MAP sensor & the lambda sensor as well as new plugs, none of which made any difference at all -- just made me poorer, the car seems to be worse when it is hot, this is when the revs fluctuate from 500 to 2000 ish, cannot find any air leaks, it does not misfire, there is no arcing from the plug leads -- help please !!!!!