Yep - remember you had problems the same time as me, if it's not the WUR or ISV then I'm not sure what it could be!
I checked the CO yesterday lunchtime and it was 4.8% Set it to 2% and it still hunts a bit for a minute or two on idle, but nothing like it did before. Not cleaned out my throttle housing for a year or so, and my car does breathe a bit. Edited by: GVK
mine reved upto 3k when hot and wouldnt come down untill you squeezed the isv pipe. app fault was the engine coolant temp sensor also used to hunt,stall etc etc but ticky boo after this has been changed mark did the same bottoming around with isv, wur, red leads blue leads etc etc but the temp sensor sorted it
i think it is one of the ones on the head VW sorted it for me can find out for sure though if you'd like.. cops summit so small can cause a living nightmare lol
