I get a bit of surging between 65-70 usually. Seems to only happen when My cruise control is on. If i shut it off and keep the throttle about the same it does not happen. It's only when it needs to let off the throttle on slight downgrades.
It acts like the converter unlocked and that i floored it for a fraction of a second and then backed out and locked again.
If you need more pids let me know which ones
BTW the AFR is richer than this shows. For some reason the logs show a bit leaner than the gauge.
You can see it clearly in frames 298, 342, 913, 926
This is a DBW 5.3 with mods in sig
Edit: I bet it helps to load the log huh?