Quote Originally Posted by FriboRage View Post
Everything seems alright driving around, it runs about 20* timing advance at/near wot... Longterm Trim B1 (which I assume is LTFT) went around -2 to -3.5 at/near wot.

Something I dont quite understand is negetive and positive in ltft cause some places I see people talking about positive and some places I see negetive... but anyway that's what my aeroforce was displaying, 0 KR the whole time.

Something that made me say 'wtf' was, after I let off the gas on my wot run, I was cruising about 70mph with little throttle, and my ltft went wayyy up to -23.4, I thought it couldnt go higher than 16.4? Does negetive mean something different? This is what I mean about the confusion on negetive vs positive fuel trims.
LTFT shows what kind of adjustment or "trimming" the PCM is making. When the numbers are positive that means the PCM is adding "+" fuel and when the LTFT are negative the PCM is taking away fuel. (-)
So right after you went WOT and took your foot off the pedal you didn't need all that fuel anymore so the PCM pulled a bunch which gave you your -23.4