I have a Gryphon with canned tunes. I've been running tune 3 for the past couple of weeks, and I love it! However, I changed a few settings just to see what difference the changes would make. I run 93 octane so I advanced the timing 1 degree. The other changes were very conservative as well because....well...I'm conservative. Just minor changes to WOT shift points, shift firmness, and tire size.

Since I made those changes, I've noticed a stutter when coasting. It doesn't really feel like a miss.....more like the tranny is confused. Otherwise, it runs great! Any ideas about what would cause the stutter when coasting?

Thanks.

 

The only things you really needed to change was tire size and shift firmness.....with the php canned tunes you really don't need to change alot....

 

Ah! 10-4. I was just curious what it may have been to cause it. Thanks 88!

 

88, do you remember what your shift firmness setting was?