[90talon]

I have a 1990 eagle talon tsi fwd, 5spd and i had to replace my ecu but the only one i had was an awd, 5spd ecu so i used it it started and since it is a newer ecu i switched the two wires i belive its wires #6 and #14 its the Idle position switch and the Air flow sensor active filter reset and it runs good but for some reason i have to pull the wires coming of the ics motor tight or the engine will stall on sputter and loss a lot of power should i just replace my ics motor? please leave any suggestions
Thanks
Bryan