med and high fuel trims

[awd93talon]

im sure this has been asked a million times but i cant get my med and hight trims to move
there at 125 and 126. does the med and high trims affect anything at wot?

 

[Rex2342]

To get the mid/high trims to change you'll have to drive around and monitor your airflow hz on your logger. With mine I try to keep the hz around 113-120hz for the mid trim and anything over 180hz for the high trim. This is achieved with very little throttle input so take it easy. You'll need some room to do this so find a long stretch of striaght road to drive on.You'll need to maintain a steady hz reading for at least 10-15 seconds before each trim will change. If you have some type of tuning aid(MAFT/AFC) I'd suggest richening it up beforehand. Hope this helps.

 

[awd93talon]

so i drive around in the right hz range and change the setting on the afc in that rpm range?
does the med and high trim affect my tuning at wot?

 

[mnexcited]

Depends on where your TH points are set on your AFC. Should be 30 and 80, which means your low, mid, and high would be done on you low settings.