Thanks guys, I'll check it out tommorrow afternoon. The power wire runs directly from the fuse panel below the steering wheel to the gauge in the a-pillar.
He said it's only done it once, so I'm concerned I can't get it to do it again. I'm going to move the ground and see what happens. If the pyro works right after that, I guess that was it.
If it still bounces around I'll check into the gauge being faulty...
Thanks for the input...