99 GrandPrix Intermittent Problem
 

Greetings;
The intermittent problem is a very rough running engine, hard to keep running, little to no power to move.
It will shut-off, but always starts back up. Happened 5 miles from house, but was able to get it home and during the last 2 miles it started to run normal, ran normal 2x's after but has happened again.
Shows no code (check engine), the "trac off" light does light up when this happens (even if the traction control is supposed to be engaged or on, which it always is).
Your advise is appreciated.

Thanks,