Hi all, I have a 1989 bonneville that is doing some weird things. The car runs fine for the most part. but under full throttle accelleration the car stumbles and pops until you let off of the gas. This is not the only time the car does this though, sometimes the car will sputter under moderate throttle such as going up an on ramp. when the car acts up, you can feel it surge some times and other times it feels as if it is only running on 2 cylinders. Usually if I let off the gas the car will pick back up and it will accellerate properly. I have checked for code, there were none, have cleaned the injectors, changed the fuel filter, plugs wires O2 sensor, and usual tuneup stuff. IS there anyone here that knows what is wrong with this thing? Please help!!!!
- posted
19 years ago