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Duramax 1

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  1. Duramax 1
    I had the update done a few weeks ago. I got the truck back with a rough idle. I read up on it and found that it needs a small quantity injector reset. I did this with a friends scanner since I did not want to deal with taking it to the dealership again. This smoothed it out and back to normal. I did lose MPG and also today got a p22fb code. If I had a choice I would not do these updates as my truck is a 2020 that I have owned for 3 years without any issues until the updates.
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