I have a 99 dodge ram 2500 with 24v cummins. A year or so ago I had an issue with my ECM. The throttle was stuck at 14%. I bought a new one through GO ECM DIESEL and it had a lifetime warranty. About 8 months after having the ECM my wait to start light wouldn't come on anymore. I put my buddy's ecm on my truck and the light and grid heaters worked fine. Mind you I've always had to wait for the wait to start light to go out before the truck would start, ever since I've owned it. I've owned it for about 2 years now. When I first got the ecm it would start fine with the WTS light on. After a while it was back to waiting until it shut off to start the truck. Then my grid heater and wait to start light quit Completely, that's when I threw my buddy's ecm on my truck and it worked fine. So I warrantied my ecm and got a new one. The ECM worked great for probably 2 months. It allowed me to start the truck with the wts still on. After 2 months it was back to waiting till the light went out to start it, now about 5 months later, once again I have no wts or grid heaters. Any idea?