Quote Originally Posted by Iron Indian View Post
I can check this, what will this determine?
If a car was tuned in the winter and the trims are much more negative in the summer, at WOT the LTFT could lock in at a negative number which will cause lower O2s. That's why it's important to have your whole tune spot on so your LTFT locks at 0 when you go WOT and your O2s stay where they should be.