RE: correct way to reset computer?
Now for the right way to completey reset it.
To reset the pcm
Leave battery CONNECTED, DO NOT DISCONNECT IT.
Buckle the driver seat belt so that it won't cause chimes that will be confusing.
Remove the PCM/SKIM fuse from the fuse box. Its marked on the bottom of the fuse box lid.
Insert key and turn all the way to START and hold it there until you hear 2 chimes. The truck will not turn over.
Remove key, unbuckle seatbelt, replace fuse, done.
The first time you go to start it, there may be a delay for cranking for a second or two. This is normal.