Thread: Crank.. No start.. P1663 FDCS Circuit Failure
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Old 02-14-2011, 05:57 PM
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tjbeggs
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Make sure the key is off. Then just pull the chip out. Then the programming will just go back to the stock PCM programming. If the chip is bad the truck should start. Either way I would leave the chip out until its up and running.
 
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