1989 cav grrrrrr

[wyld56]

I am at my wits end my 1989 cavalier I will start to go and get all of a sudden without warning the car will lose power and go from 30 mph to 10 and stay that way for maybe ten mins if you try and give it gas it will cut out and stall if you let off the gas it will contuine to run but have no power to the pedal then all of a sudden it will go again what is this i have replaced the iack censor, near the thottle and it has a new crank censor, a new fuel pump a new fuel filter and a new sleeve around the fuel pump a new fuel pump censor last year a had a cat put on the exhust and the new thing now is that it will stall now and not restart right away i am going crazy please help

[Jason/RKBA]

Maybe FPR, coils or ICM. I'm not real familiar with the 89's. Here is a cool link explaining how the different sensors work which I think might be your problem, it sounds like you have covered most of the bases. Hope this helps.

http://www.babcox.com/editorial/cm/cm69910.htm

[Zeifer]

Sounds like a TPS issue to me, but don't quote me on that.