i have a p0605 code on a ford f150

Question

need help just replaced the engine and it will not start

Answer 1

P0605 PCM error

P0605 is a problem with the ROM,When this codes up it usually a failed attempt to calibrate the PCM, This will not cause the vehicle to not start, You can get this code with key on engine running, You need to inspect for proper ground especially the power grounds, Look for other cause for no start.Especially the anti theft make sure that is no active