when i use my boxster (its a 1999 , 2.5 manual with 57k on it) straight from cold the idle speed jumps up and down even if i try to hold the tick over a 2k. and when driving it it jumps and hessitates at most speeds. it still does it when i leave it running to warm up first buy no where near as much. also i think its connected to the above problem but it also sometimes completely cuts the power above 4500/5000 k if you have the pedel flat on the floor. (doesnt stop, just dies down to a tick over) i've had new coil packs fitted new plugs, oxegen sensors fitted to the cat and i have just ordered a new MAF sensor (not fitted yet) have been told that it does sound like it needs a MAF sensor but thats coming from thr guy that has done the other work already!!! not sure if i believe him any more. can any one out there help me ????
cheers guys..
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