Thread: Power comes & goes to trip computer/HVAC

Definitely something electrical. not sure on how to fix though, need some who has opened the dash to chime in.

Or maybe you can pull the radio and see the wiring...

you never know , may be un hook the battery to reset the pcm may do the trick, electrical stuff aint my bag if ya know what i mean.

http://www.grandprixforums.net/ignition_bypass.php

Most likely the fix to your problems...