LLY with "new" U7185 tuner

[Yamaha314]

Just got my new tuner from a site on Ebay. The unit is new, but I think there is a version 2.?? for it that it needs? Anyway, I set up the 65 HP tow/econ. mode today and drove it a little bit. I found that under hard excelleration, the tranny slips and/or the engine is de-fueliing as it shifts. This is especially noticed when in tow mode. Is there any 'learning' the tranny has to do for XX miles, or is there an update to fix this?

Otherwise, Holy Crap! I can't wait to try the other tunes!

Truck is 2005 Siverado CC 2500 LLY 4x4 automatic

Thanks in advance for any advice

[acidal]

It will take a couple of days and it will shift very smoothly. Every time I change hp. settings that happens.

[mikel]

Yes, the tranny has a relearn procedure after you reflash the truck.

Thanks