I had my KEM 250 tune for almost a year now, i like how it runs and the mileage. I switch between it and Eric's street tune, witch i also like a lot! About 3 or so months ago, i noticed mt truck reving up on its own. Ay first i thought i had just hit the throttle when i parked the truck, but then it was doing it when it was idling. Its only ever done it with the 250 tune. I've tried re-loading the tune and it doesn't seem to help. Has anyone else had this problem? Or have any idea's what i can check out? I love Eric's tune, and i dd his street tune normally, but i have found i get better mileage out of KEM's 250 but i dont what it to damage my truck!