So, I just had the PCM and Vacuum harness replaced by GM. Today, my car died while idling at my daughter'* school. It then would crank, but not start. After 5 or so minutes of trying, it finally started up and drove home just fine.

I used to have a '95 Bonneville, and had a similar problem, which ended up being the crank sensor. Would that be the same issue I'm having in this car?

Any help is appreciated. Thanks!

Sounds about right. If it dies again check if you have spark.

Thanks for the help!

Cam, crank and MAF are the first three I would check.

check all the wiring going to the main control under the air filter check for any exposed wire,i had these problems for 2 years finnaly checked the wires shure enough exposed copper,cut them,spliced them and cleaned it up car runs fine no more check engine light.

Mine performed similarly. Died while at idle and later while at highway speeds. It turned out to be the fuel pump connection in the trunk (at the pump). Ran a new wire with new terminals and the problem was solved.

This was diagnosed by a professional. Took him about 8 hours to finally find it with his voltmeter.