Need Help Bad! Mechanic cant find problem!

[juiceman]

im going to give you some advice that im sure pkrud and others will agree with. the first thing you need to do is fix what you know is wrong. you have a computer car and you have computer sensors not even connected. the comp needs to have sensors to properly run the motor. if you didnt hook up your modem would it work? well the car is the same way. next, the mechanic couldnt pull codes? it doesnt matter where the comp came from or when it was put in it still has memory. so if your mechanic knows how to hook up the box then it will give some code, at least an ok code. now im not saying any of those things are your problem and many things as you can see can cause the same reaction on the motor but you need to start at A before you go to B. each part on the motor works together, if you break one thing it will affect the other in some way. one question, didnt your sig say going to carbed? if so why bother fixing the problem, just go carbed now