I have a DPS since early spring & its been it my closet for most of the time.
My problem is as soon as i install the 87 tune my truck rattles like crazy underneath the truck. everything seems to be fine till i add the tune if i remove it it stops as soon as i install it the rattle is back.
I don't have much experience with this & i'm not the most educated with this product. i purchased it because i thought it was plug and play.
I paid enough for it & really want it to work, i don't want to sell it i know i will lose money.
has anyone had this issue or similar? Does anyone have any tips for me.
it seems to shift better with the program, but i'm not sure about MPG i haven't left it plugged in long enough i'm scared i'm damaging the truck in some way.