For the visual learners in the crowd.
View attachment 77742
This log shows the corrected idle. Interestingly, you can only see blips in the RPM now when it's shifted into gear.
View attachment 77743
The old map showing the duration causing the overfuel. The issue is the same as a mechanical governor bouncing, either too much fuel or not enough, so it's bouncing between the two to try and maintain median RPM. You can see this zoomed in on the log, by the time the RPM overshoots, the PID had already cut fuel by 200uS. RPM on the up slope, fuel on the down slope. This causes an undershoot and the PID tries to recover/correct via adding fuel by selecting the cell it thinks will save it. The issue is that because the injectors are oversized, the injection event causes an overshoot of rpm and the loop repeats.
This is how a Lope Tune works if you are doing this intentionally. I'm not a cool kid though. I am leaving the lope in tunes 2-5 though just to be a dick.
View attachment 77745
New map showing where I inserted the amount of fuel I knew it needed based on the logs I had taken.