I don't have a pcm yet. I am putting a 5.3 in my 91 chevy pickup. So far, all I can find are pcm's for camaro/vettes with a manual tranny.

The engine I am using is out of a 2000 pickup, but I dont have a computer or wiring harness for it yet. I am still trying to locate the two items through some local wrecking yards and online.

What computers can I use for this engine? From what I understand, I can use anything between 99-02? What is different about a 98 computer from, say, a camaro?