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Message: [QUOTE="Black 02, post: 1321202, member: 6916"] So, I finally got my second engine back in my truck. Switched tuners to G-head and got a Hydra for it as well. Everything seems great, but on my first test drive, I got about 20 min from home and the truck just shut off. Like you turned the key off. Coasting, I put the truck in neutral and it restarted. This happened probably another 6 times off and on over the next 200 miles of driving. The truck doesn't always completely die. A couple times it went down to like 600 RPM, but the throttle pedal wasn't responsive and then it just jumped back to normal. Every time it happens, the check engine light and water in fuel light come on and then soon as it starts running, they go out. Usually the truck restarts right away. Sometimes it takes a few minutes. It acts like a CAM sensor, but the cam sensor is brand new. Got it from Riffraff. It is the darker grey sensor that they sell. There also isn't any CAM sensor codes. I scanned it with my AE. There was an IDM failure code, but I was told since I have a Swamps upgraded IDM, that I would get that code. There was also a communication BUS fault code. I don't have the actual code number with me, but I'll get it. Fast forward to last night.... I was driving the truck to my girlfriend's house and the truck died. This time there was no check engine light or anything. It would not restart. All of the dash warning lights were on like when you first start the truck, but the glow plug wait light wouldn't go off. It was staying on with the key on. Also, the hydra kept reading 00. I couldn't change the programs on it. Just stayed on 00. Towed the truck to my girlfriends house. Tried to start it an hour later. Wouldn't start on the first try. Hydra still read 00. Turned key off. Turned key back on and it still read 00. Then I heard a small click under the dash and the glow plug light went out and the hydra switched to 01. Truck fired right up. I've wiggled the harness, I've pulled on the chip to try and wiggle it to make the truck die. I had an F6 in it and it never had a problem, so I'm sure the contacts are clean enough. Anyone have any thoughts? Sorry for the manifesto. Just trying to give all the info I have. Not fun spending a **** load on an engine and not trust it to drive 5 miles to town. Thanks. [/QUOTE]