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There is a way that you can see your own data logs.
Trifecta had a program that I was able to retrieve and download. This way I can see my data logs. I cannot change any of the settings but at least I can read what is going on.
You are correct, that the LLT does seem to run rich, however, when I watch my LTFT and STFT settings, it is almost always showing that I am not running rich. I can watch them while driving as I have an UltraGuage that shows my readings.
Posted below is some of the charts from that program I mentioned.
The data logs were taken a year ago while at the drag strip.
As for what is going on with yours, that is a good question. Change in fuel? Change in weather? Clean the air cleaner. Check all the hoses and lines. Look over all the obvious first. Might want to even check for exhaust leaks, I found that my mid pipes had loosened up to my headers, and was throwing a code. Drove me nuts for a couple weeks, until I checked the clamps. Tighten them again, all good.
GOOD LUCK.
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