wayne613

The interface being used to display is the PC version of dashcommand in my case.

My understanding is that both are separate representations of the same thing with a short and long term connotation. Negative values meaning fuel is being taken away. Long term just being a learned correction of what the short-term's average values are at that particular set load and rpm(with IAT and such factored in) to get back down near 0 for short-term..

moosestang

Well I did some datalogs with sct x3 connected to my laptop and lc1. Using livelink to record the data. My short term fuel trims were .79(1 being zero), I believe that would be read by my aeroforce gauge as +21. If you take .79 and multiply it by 14.7, you get 11.6, which is what the lc1 was showing. Your short term fuel trims at WOT are a commanded value set by your tuner, not any learned value. My long term fuel trims were both 1, which = 0 in this case.