My motor doesn't want to rev and I was curious how you know if the module is bad. The truck runs great and the module is an accell with only 200 miles. I thought about buying a stock GM module to see if the aftermarket is bad but want an opinion from you guys if possible. Thanks

Take it to your nearest Autozone and have it tested.

cool deal, I didn't realize they could test it for problems. I thought it was just to see if it was fried or not.

I think you're right, I think they can only test to see if it works or not...