I went to get my 2001 Chevy Silverado inspected and all was good intill they tried to connect with the OBD. they said that it would not connect to the states emissions computer. It was fine last year any sugestion to why this might be?

 

wild guess, but I would check the wiring on the plug under the dash first. I mean by looking for a loose plug or something first before getting too involved with it.

 

no check engine lite?

make sure the auxpower fuse is not blown

 

im a emission tester 90% your fues is blown does ur ciggrett lighter work, if its the fuse the aux power wont work either