Gotta swap everything, like computers, Body Control Module, immobilizer, keys, all those things at the same time (not everything is included in engine wiring harness). Even back in 1997, those things had over-current protection on pretty much every circuit, so will shut down after a brief start. Pretty much every model coming out at about that time, they changed things around, changed the spec's, etc. I don't think you killed anything, but you need to keep every box, every module with the engine when you swap... and they love to hide those things where nobody looks! Older vehicles didn't have such smarts and we could just swap engines and expect things to work with slight adjustments. Get hold of the full diagram and check every single thing was included in that harness, right down to injectors.
crwdns2934105:0crwdne2934105:0
crwdns2934113:0crwdne2934113:0
crwdns2915270:0crwdne2915270:0
crwdns2889612:0crwdne2889612:0
1
crwdns2944067:03crwdne2944067:0
Are you sure you're getting enough fuel?
crwdns2934271:0crwdnd2934271:0 brandon k crwdne2934271:0
Well I don't know cuz now I turn key an I get nothing no dash lights nothing kind of thinking it might be ignition
crwdns2934271:0crwdnd2934271:0 Brett crwdne2934271:0
Unless an expert with wiring can figure this out, you may be better served searching for Chevy forums with members familiar with your engines, wiring swap and specific problems. There are many questions to ask, to narrow this problem down related to; factory security, fuel pump, fuel pressure, ignition system, throttle body or EFI system, etc.
crwdns2934271:0crwdnd2934271:0 F Dryer crwdne2934271:0