I took my tuned 2017 RAM 2500, and the dealer overwrote my tune with a stock tune without asking.
I have an MM3 tuner with four tunes, and the trans tune also has EGR delete (unplugged), as everything else is stock.
The check engine light was on when I got into the truck and gave me an EGR error.
I also noticed the dealer plugged my EGR valve back in.
So, I'm wondering how to fix this mess, as I don't want to be without the tune.
It is fantastic; the truck has been tuned since it was new.
I'm wondering a few things: when the dealer flashed it to stock, did I lose my tunes on the chip?
I don't think so, but I'm not sure.
I do not have a copy of the tunes; it was on an old computer, and I don't have anymore.
Do I return to stock from the MM3 tuner with the EGR valve plugged in, and will that fix the error for the EGR?
On a side note, I need to get emissions tested if this does.
Lastly, can I reload the tunes?
Does anyone have the instructions for this?
I tuned the truck six years ago and misplaced the instructions.
Thanks
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