Hi Guys, I've been learning my way around the NAG1/w5a580 recently on a 2013 Jeep Wrangler. I feel like I'm getting familiar with it and making decent progress, however I have a major issue that I can't figure out. The part throttle shift points are no where near where I set them. For instance, on the attached screen shot you can see that the 1-2 shift occurs at 945 rpm (trans output speed) and a accelerator position of 31%. However, in my charts a 1-2 shift at 31% should be occurring between 510-630 trans rpm. So what the heck is going on??
Some questions:
1) Is the Accelerator Position the correct one that the TCM is using?
2) Is there some secondary table that takes into account or load?
3) Is trans output speed an actual sensor, or is it a calculated value?
4) This theory just occurred while typing all this... Is trans output calculated, and is it not using the correction factor for tire size and gear ratio? Gear ratio is 5.38:1 and tire size is a measured 37.4".
5) IF 4) is the answer, can I perform a calculation in the scanner to help me track this?
Screenshot 2018-09-13 19.32.09.png
Screenshot 2018-09-13 19.35.57.png
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