Distributor sensor could certainly be it, it could also be it's air gap. How much gap is there from the sensor to the pickup? If it's a VR sensor, it could also be very susceptible to noise/RFI. Instantaneous and wrong high RPM can demand high fueling, it'll show up on a log, but likely not a tach.

You can probably do a tooth trace/high fidelity log and watch each crank tooth, if you see the crank signal just drop out, that'll tell you something for sure.

- What's the rpm log look like?

- Hitting 93kPa with a maximum TPS of 16% seems a little suspect. if the MAP signal isn't accurate, it jumping to 93kpa will just dump fuel [also seeing low/rich AFR]

- Try cutting down on the number of common data names you are using per trace in megalog viewer, PW x PW x VE1 x VE2 isn't very useful. I would scale the TPS chart to show 0-100%, it looks like the scale is showing ~0-20%, which makes 16% look very high. Small tweaks in MLV will help your data start to show a bit clearer story.

- I'd like to see your MAT trace and MAT fuel correction as well. There is a MAT correction curve that, if wrong, can dump a good amount of fuel on top of the base fuel table. There is on my MS3, not sure about MS2.