Thats prolly your Tach wire. If the remote start doest get the signal from the tach, it will just roll over but never fire. Unless your system has a voltage sense then you dont need the tach. But thats the only wire I can think of that would need to go to the ICM. Remove that tape on the harness and see if there is a stripped wire where that one use to go.


Also, where does that other blue wire go?