Join Date: Nov 2006
Thanked 7 Times in 6 Posts
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Calibrated mm3 tuning
Looking for a little feedback.
I bought the mm3 package from calibrated power including their trans tuning. I have had it about 3 weeks now. I have been having an issue with the trans tuning where the 1-2 shift is having issues. on any tune with throttle input above 50-60% it will shutter when it shifts from 1st to 2nd. All other shifts and torque converter lock ups seem to work good.
I have brought the issue up to my sales person and he keeps telling me it is trans learning and I need to give it time and varied throttle inputs. I had them send me an updated tune and it seemed to help a little but I am still dealing with the issue and I have driven over a week on it and about a tank of fuel... At this point I am afraid it is damaging the trans. The heavy tow tune doesn't do it bad but going up to the next tune Light tow, it does it pretty bad. I wont even try the higher horsepower tunes becasue of this.
Seems to me that some data logging would be a good idea to see what is happening? I cant seem to get anywhere with them on that. When I turned the truck back to stock it does not have this issue so I know it is in the tuning.
For guys that have this tuning or efi live and trans tuning, how long did it take for your trans to learn? Any other thoughts?
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