if its anything to do with idling then id go with the TPS.
when i had a GTi it was hunting, and it would idle at 2-3k, i changed the ISCV and it didnt make a difference, replaced the TPS and i didnt have any more probs for the following year.
I know its not your EXACT description but still to do with idling.
Last edited by BM08; Jul 19, 2008 at 08:01 AM.