99 chevy 2500 want start

[joef2002]

Ok I need help I took my 99 Chevy with a 5.7 down to get it inspected I live in an emissions county. Ran fine all the way there they pulled it in bay turned it off and hooked up computer for the emission test and it wouldn't start and has not started since. I had a scanner tool hooked up to it and it want read. Is it possible that they shorted something out and where do I need to start looking thanks for any help you can give me..