Is MAT the issue here?
 

So I drove my car to work yesteday and I logged it on the way there for a few minutes. I then logged it on the way home for a little. On the way to work it ran great, considering it's been on the same tune since early July. On the way home it was a lot cooler out and it ran pretty lean. I think there was about a 25* difference in the MAT temp. Is this what's causing my lean issue? If so, how do I correct it?
Thanks.
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doesnt look lean to me, just work on your enrichments.


your gammae is 105% across the entire log.

That log is the one on the way to work, I couldn't get the other one to upload, but cruising along pulling about 10InHg, I'm at like 15.6AFR. That doesn't really bother me, until sometimes I see about 16. If I get on the throttle, it's as if the whole table is offset, cause normally at like 2psi I see about 13.5:1, but when it's that cold out, I see about a 14.2?

well you have AIT corrections on between 60-100*F (0-9%), so now that the temps are lower you are using less correction and you VE table is technically not tuned correctly because you tuned it with external enrichments.

I understand it now, I think. You're saying that because of the way I tuned it, if it were hotter out, I would be running richer, right? So this is why I need to correct my enrichments...