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Question for the group - I just purchased a 2020 Ram Rebel and will be installing larger wheels/tires. i understand I can change the gear/tire size via the scanner without downloading the tune. To do this, will I need to install a smart access cable, or will I be able to do this by just connecting the scanner via the OBDII port?
Thanks in advance.
Paul...
You will need the smart access but there was a member here that had an issue using the HP tuner version on his jeep. Start with this post and read on from there.
https://forum.hptuners.com/showthrea...l=1#post603295
BTW I think you can accomplish the gear/tire size with alfaOBD. Lot of the RAM guys use it but you still need the smart access cable.
https://www.alfaobd.com/
Dang it - was hoping I could just connect the scanner and make the update with the vehicle special features without connecting the access cable. Sound like even connecting the cable people are having problems.