Hi all,
im sorry if this has been asked before but I am new to forums and new to HP tuners. I was wondering why on my wife's 2007 Yukon Denali with the 6L80E I can see desired shift time but on my 2010 Sierra 6.2L with the 6L80E I can not, any ideas as to why? Once again new to forums and having a hared time finding the information I am looking for. I have attached a copy of her Diablo tune and love the way it shifts and my tune that I hate the way it shifts. I did try the diablo tune in mine and was completely un happy with it hence the HP tuners purchase. Any help would be great.
Thanks,