ill give the long story now and cliffnotes at the end if anyone wants to skip the long part - a chrysler talon left to a friend had been sitting longer than 6 months until it was given to another friend, it had massive problems and wouldnt even run so it was towed into a local shop. the shop said that the MPI control unit was faulty based on the fact power was going in but not coming out so they replaced the relay which didnt correct the problem. apparently to start the car they are bypassing this MPI control unit. since they could get it to start theres a few other things like it was running on 2 cylinders but they got it to work on 4 now, and they say the timing and adjustments are way off while its running, but im not concerned about that. the part that concerns me is they say they can only get an MPI control unit from the dealer for $2045.00..... ive called both the mechanic and the dealer and i cant get them to admit that this MPI control unit is just an ECU. the most they will say is that its "like the main brain" and controls the timing for everything else. i have a guy with a talon of the same year thats willing to part the whole car out but hes at a loss as to what an MPI control unit is. so, to sum it all up - CLIFFS - i need to know what an MPI control unit is, the usual price for one (both new and used), and any compatability concerns i should be aware of by getting one out of another car. stats on the car - 2.0L NA, 91 chrysler talon, automatic, pretty sure its not AWD. i havent seen the car yet so im just going on mostly heresay but if you need more info to help just let me know what you need.