2000 Pontiac sun fire gauges go wacko when started up but,, will sometimes reset if ignition is turned on repeatedly without starting vehicle

SOURCE: Ford Focus 2004 - key won't turn in ignition

these vehicles have a lot of problems with ignition cylinders binding up. It needs to be replaced with an updated cylinder. If you tap on the key with a small hammer or something like it while turning the key you can get it to turn

SOURCE: 2000 Toyota Tundra starts occassionally. Sometimes

Welcome to FixYa! You need to replace the starter solenoid contacts, or the starter itself.

Note that the starter is UNDER the intake manifold. This is a VERY difficult job, and is not recommended to those who do not have sufficient automotive experience.

If you DO remove the intake, you MUST replace the intake manifold gaskets, or your engine will not run properly, due to air leaks at the intake mating surfaces.

SOURCE: 2000 alero won't start. turns over and fires but wont start

make sure your cap and rotor timing is correct double check spark plug routes (mistakes happen). maybe your timing is off in general.

SOURCE: my 1998 plymouth neon expresso

I was reading about the same issue and i think we will all have to get a new cluster gage or whatever
there is a way to fix it yourself if you can
using a soldering gun

SOURCE: 99 pontiac sun fire theft light is on and wont

most car anti theft systems can be disabled in the following way... (aka follow the link)

DISABLE ANTI-THEFT