vince^_^ 10/8/2010What have you done so far to fix your vehicle? Did you already check the condition of your air filter (may be dirty/clogged), spark plugs and its plug wires, PCV valve and its hose (may be damaged/collapsed/ clogged), fuel injectors, fuel filter (may be clogged) and accelerator pump diaphragm (if your vehicle is equipped with carburetor)?
HouseCallAuto 10/8/2010If you want to possibly get through this yourself with help from us it will require you to have the fault codes checked that are possibly stored in the engine control module. I could guess and tell you to try this or that but I don't like to guess. Not very productive. Buy an inexpensive code reader (under $75) and attach it to the diagnostic connector under the driver side dash and read the codes. It takes like 3 minutes. This is what the professional mechanics do in a repair shop for an event like you have. You just do not get to be a part of those behind the scenes details. Tell me in a repost what the codes are and I'll try to tell you what parts to buy to fix it without a repair shop intervention.