See www.vexedvolvo.org

I don't know how many miles are on your car, how long you have had it. Basically, your car has a poorly designed ETM module (there is a potentiometer that moves with accelerator movement, and it wears much faster than it should). They have a software patch that I believe is covered under either a recall and/or a 200,000 mi warranty (just for this part). That solves a lot of the problems people have; it "smooths" the signal from the pot. More severe problems result in ETM module replacement, which is covered by the warranty (not routinely replaced under the recall).

I hope this applies to you. If not, it is interesting reading.

Pulled this link from a dozen or so posts down, lots of reading here.


http://forums.swedespeed.com/zerothread?id=39438

--
Volvo Farmer.

24 Volvos, '58-'97, all RWD, except the 850 t5