Pontiac Repair: pontiac stalling, pontiac sunfire, ac delco

Question
have a 95 pontiac sunfire 2.2.  when in drove, with a load on it. it stall and spits and sputters and will not idle right in drive . we replaced the coil packs , and the fuel pump , spark plugs and fuel filter. it misses a little at idle.but once in drive it runs ruff. but in reverse and netural it runs fine. Could you help please

Answer
Hi Jason.

Well from the sounds of it It's an ignition system issue. When the engine is under any kind of a load it misfires. How are the plug wires? if they look old or are a "cheap set" then replace them with AC/Delco wires or a good set from either NAPA or Carquest. Does it make a diffrenece if it's damp out or not? do you live in the rust belt part of the country? There was a recall on the engne control module and engine wire harness on this year car. When that recall covers a wide range of issues related to corroded ecm and ecm wiring on that model car. it may be worth a call to your local GM dealer and have them run the VIN# and see if that recall was ever done or not on that car if your not the original owne you wouldn't know it it was completed or not. Good luck :)