Hi all,

Been unable to work on the car through October; work/life got in the way.

Finally able to get a little time before work today. Took the seat out, opened up the Megasquirt, and started playing with the potentiometers (R52/R56). Using the two links provided above, I have been tinkering about but I'm not sure on what progress exactly I am making. I still feel like 3800rpm is the limit. I'm not sure exactly how many turns I'm able to turn on the R52 pot, but I went full counter-clockwise then 4 full turns clockwise to see what effects on the hysteresis it'd have. Appeared to not have much effect, but at the same time signal observations is not a strong suit so I may have not had an idea of what to look for. Went a couple turns on the R56 pot as well. Ended up resetting everything to full counterclockwise.

Attached is a log from idle at warm to max rpm then back to idle. I also cannot seem to pull the trigger log from this data log file. But I did notice that one there seems to be a missing "bar" at a steady interval when I was at 3800rpm. https://drive.google.com/file/d/1z9coxaPUniPTNcQwxi2QoKS1e8WAR6ab/view?usp=sharing

Chris

Looking at the log file you have a major issue with the input. RPM jumps from 3850 to 11000 rpm every point.

The "missing" tooth you describe in the trigger log is a low "time period" (Y-axis is in ms) and accounts for the rpm spike.

Since you have the lid of the MS ECU - How are the jumpers configured?

In the trigger log you can log the individual teeth in the trigger. This should show a miissing tooth. The trigger log should not.

Is there an update to this? I installed a new VR sensor (I broke the old one by accident) and am dealing with the same issue.