OK guys here comes the novel. My car has been running bad for the past 5 months.It started out as a misfire and got alot worse. I first had the wires and plugs changed seemed to help for a day.Then went back to same thing.Then it also started to stumble like it had no fuel or spark.I would floor it for about 30sec then let off would drive fine for maybe 10 sec. and would have to do it agian.when it does this the tack bounces and the air bag light and check engine light flashes.It will not store codes. I took it to school they said my pc was bad.we could not get the hypertech to come off or the snap on tool to read my original computer. I bought a used one from xl-tasy.It drove fine for 2 weeks with still the slight misfire but no stumbling.Then after that it came back misfire and all. The computer was a mbe2 from lx-tasy while my original was a mbe1.I have replaced alternator/iac motor/tps/egr valve and sender/pcv valve fuel filter/cam sensor/new battery terminals/cleaned the maf/and i just bought a new pc matching my old original today but not installed yet. the alternator was changed because of over charging.I have had some mech classes and have check and changed parts that i thought where related to the problems. I have not had it to a dealer sence the plugs and wires they put on. please help!!!