So heres the thing, my 99 cavi started having an anti theft issue, I went down and pulled an ECM, cluster and Ignition switch outta another cavi at an auto wreckers but my car still is haven the same issues, most of the time it will fire up and shut down right away, but sometimes it will start and run fine, any ideas?
How does the ground wire from your battery negative post to the tray look? That connection under the yellow butt connector likes to burn and get flakey causing anti theft issues. I got stranded quite a few times over the span of a few weeks a few years ago until I figured this out.
-Chris-
-Sweetness-
-Turbocharged-
Slowly but surely may some day win this race...
Is your key worn out? Take your VIN to a GM dealer and get a new one cut from the factory key code.