Success!
Everything is functioning perfectly.
I found an intermittent ground fault in my test bench HV switching hardware which explained my precharge fail symptom.
Also, the chromebook I was using has lost ability to communicate with my v4b board at a useful refresh rate. Different computer works ...

I am pretty stumped with the behavior from my LDU. So much so, that I recreated the entire harness from scratch along with my new E46 BMW pedal just to cross check my work.
Same result though.
Everything powers up, although precharge - HV sequence fails after 5 seconds, it worked fine for months ...

Okay, thanks for that suggestion. I have tried with another good, tested power supply(13.4vdc), with all other connections removed besides 12v to pin1 and GND to pin 22 on 23pin connector. I'm still having the VERY slow parameters update thru the web interface...which is probably why my -previously ...

Thanks for the explanations, I thought about a resistor to more closely match the signals.
So, I wired it up, 2k7 resistor to POT, and first test plotted very good, but now after a reboot i seem to have upset my always (for months) reliable WIFI connection. Not lost, but VERY SLOW data rate, no ...

Okay, that's super helpful, thanks!

However, the code comment says "//2nd input running inverse"

My dual hall pedal doesn't read as inverted signals, the 2 signals read as scaled -somewhat- linearly, POT is about 2x POT2
I thought all dual hall effect pedals worked like this, does the BMWE46 have ...

Thanks johu, I've visited Patreon to express appreciation for digging into this issue, and look forward to doing so again in the future.

I tried your suggestion, but not much change.
As a control experiment I reverted to SingleRegen mode, unplugged the throttle POT2 pin, recalibrated the min/max ...

I'm having a weird problem with my throttle pedal while bench testing LDU at 80volts.
Dual hall effect pedal from old maxima, with two pot channels test and plot perfectly.
I configured the dual channel potmode for throttle signal redundancy, calibrated the two pot signals, everything seems fine ...