Mike you did a custom tune for my 2003 yukon denali that had the low speed tranny shifting from 1st-2nd problem. The custom tune has been working great and thanks for your efforts on that. If I send in my u-7195 What unit will i get sent back and will I be able to get another custom tune for the ...

does the truck have remote start and/or alarm?????? If so disconnect the bypass module.

Get some throttle body or carb cleaner and clean throttle body and both sides of the throttle body flap and see if that helps the idle problem.

johan, are you saying that the 7195 with datalogging will never be available??????????????????????

More then likely on your truck you have a bypass module to bypass the factory passkey or passlock stuff. This bypass module will interfere with your canbus data line on your truck. You need to find the little bypass box and disconnect it in order to upload performance programs onto your vehicle ...

More thank likely on your truck you have a bypass module to bypass the factory passkey or passlock stuff. This bypass module will interfere with your canbus data line on your truck. You need to find the little bypass box and disconnect it in order to upload performance programs onto your vehicle ...

depends on model number

wow, I thought shell was good quality stuff. Not doubting you ss but has anyone else had the same type of issues with shell? Thanks for all your help so far ss.

I have my ltft's dialed in to show me between -.76 and 0.00. I have had a full tank of 93 octane Shell gas in for about 100 miles. I'm using the 87 tune now on my 03 denali and i'm getting knock retard when at Wot. Is it strange to get knock retard of 5.xx-6.XX wot when im running 87 tune with 93 ...

I was one of the ones with a 2003 denali that was having tranny issues. Mike hooked me up with a couple of custom tunes and I'm now happy as a pig in slop. The truck runs and shifts great. Thanks Mike. Top notch service here.

nyescalade, Your gonna need to get the cables and send mike your backup Once he has your backup he'll work his magic and send you a custom tune back. If you need to find the cable and power supply very cheap email me at [email protected]

Yeah, Please let me know as soon as possible so that I can make sure i'm not hurting the truck. Also if this is a 93 tune, How can I use an 87 tune also. Thanks, james

Mike, I really appreciate all of your hard work and effort on this. The custom tune seems to have fixed the slipping from 1st-2nd gear. Can you tell me what you had to do or is it a big secret. Nyescalade would probably benefit from a custom tune also. I hope that this is the last time that I have ...

Mike believe me i wouldn't be concerned at all if it slipped with the stock tune in, but it does not. It also shifts great 1st-2nd get at wide open throttle. I don't know whats going on here.

tried it and no dice.