88 gti 8 valve stalling

[nickm]

i've just bought a mk2 eight valve and tho i was gonna sell it 'cos i wasn't keen-it's started to grow on me, it's just begun to stall at tickover and it seems to be 'hunting' real bad, i got caught out and had to put unleaded in it-which coincided with the sh!t running, could this have caused it or is it likely to be something more sinister--also it needs a new clutch-how much should i expect to pay? thanks in advance

[DimReefa]

no idea about the clutch...But mine had the same hunting problem and it was the trottle body...i just cleaned it out with carb cleaner but it could be loads of things..trial and error

[mk1]

Check all the hoses and pipes for vacuum leaks, esp the pleated pipe to the throttle body.
Steve.

[richandhazel]

Is it a k-jet or a digi? If it's k-jet then the octane of the fuel could effect the running as the ignition timing needs to be retarded to run on 95 RON.
However, if its a digi then I'd plumb for the old favourite, the ISV or vaccuum leaks:-
http://homepage.ntlworld.com/richandhazel1/gti/profix/fuel/isv.htm#ISV

Try Stuart at Leeds Eurocarparts for the clutch (See discounts section). However for a rough idea:-

http://www.eurocarparts.co.uk/

i've just bought a mk2 eight valve and tho i was gonna sell it 'cos i wasn't keen-it's started to grow on me, it's just begun to stall at tickover and it seems to be 'hunting' real bad, i got caught out and had to put unleaded in it-which coincided with the sh!t running, could this have caused it or is it likely to be something more sinister--also it needs a new clutch-how much should i expect to pay? thanks in advance