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I have an 01 2500 with 113000 miles we replaced the lift pump and inj pump about 4000 miles ago. The other day the truck lost all power and started blowing a lot of white smoke. I did change the fuel filter and the truck ran about 5 miles and then died again. The truck now will not start and I'm getting codes P1693 and P0602. Any suggestion would be great I'm getting a litte tired of working on this thing all the time.
 

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P1693 is telling you that the PCM and the ECM are in agreement about the code.The P602 is PCM programing/Calibration error. Try disconnecting the batteries for 20 minutes then reconnect. If the code comes back, then you have a bad PCM. Sorry to say but that's not gonna be a cheep fix. You can try a used one from a wreck but I would get new or have the dealer try to reflash yours. Good Luck... Chris
 
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