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Discussion Starter #1
Today I decide to take my truck in fof the idle surge thin but as I get close to the dealer I decide to set the computer to stock( I have the Hypertech set at 3) but before I turned off engine I waited to see if it surges. As I wait it doesn't do it so I wait a little longer. So I decide to put it back to the stock settings anyways. But 2 DTC ( diagnostic trouble codes pop up) 0089 & U1000. Does anybody know what they are? I didn't brin it in cuz nothing was wrong or should I just bring it in and tell them whats going on? I just don't wanna waste my time and have them tell me they can't find anything wrong.
 
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