yea...he ecu says p72, but the guy that sold it to me said it was a virgin...fully stock...but then again, this is what i was told over an email...i disconnected the spark plug wires 1 by 1, and the engine would start missing everytime that i unplugged a wire except for the #1 cylinder...there was a spark, but im guessing there is no fuel going into that particular cylinder...what can i do??? i dot know anyone else with a obd1 gsr so that i can try the ecu in there car or anything like that. But i do have a couple of friends that have single cam vtec engines with stock p28 ecu's...do you think that trying their ecu in my car could let me know if its a problem in my car(with the wiring/sensors since it was stolen) or the ecu? thnx