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Message: [QUOTE="Coolit, post: 1539947, member: 32093"] I got the pcm that went with the engine and transmission they came out of a 2002 E350 ambulance we cleaned the pins to where it would make good contact no retinning necessary at first I was having problems with it dropping down to 2nd gear if I pulled over and pointed the truck uphill and turned it off for a couple minutes I could take off and it would work fine for about 4 or 5 miles so we replaced the pcm with the one that was in the ambulance which in a non intercooler vehicle the engine and transmission worked fine before we swapped them into my truck but once we figured out the pcm was the main problem it started coding for the output speed sensor we replaced that with a new one I decided I would put my chip back in then it started coding for both of the speed sensors P0715 p0717 and P0720 everyone was telling me these trucks are bad about the transmission wiring harness going bad so I changed that out still doing the same thing with the chip installed it does fine without it so it looks like I'm going to have to get the model number off the pcm and send the chip back to have it re-burnt that's the only other thing I can think of luckily I didn't have to buy any of the stuff speed sensors and wiring harness does anyone know of a place that rebuilds pcm's I still have my old one I'd like to have it for a back up. Thanks [/QUOTE]

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