Stock Sucks
+1y
If this aint the case i would try another ecu like the others said. If you computer cannot be read by the ford one then the computer is messed up somehow. Try getting a new/different computer and take it to ford to have them reprogram it, then plug it in once you know the computer is good and programmable by the dealer....hope this helps
Originally posted by mobileheath
Fords use something called P.A.T.S. (passive anti-theft system) they have a transponder chip in the keys and they are very touchy...my guess is that you knocked the transponder ring off the igniton cylindar if you took the column out or you may have forgotten to hook those wires back up...I have been installing remote start systems for years and fords are always the most touchy when It comes to bypassing the factory security.....take the plastic shroud off around the key cylindar and see if the transponder ring has popped off the cylindar or if the wires are unhooked