Since everyone is an Engineer on the internet, I’ll put on my internet certified graduate of the Wile E. Coyote School for Engineering Greatness (WECSEG) hat...
So, while not proof beyond all doubt, or perhaps even reasonable doubt, this bit of information seems to point to an invalidation of the theory that @
Gilligan’s problem was caused by the pedal commander, but maybe not contributed to by the PC.
While the evidence would point away from the PC, it seems the 2 subject vehicles were significantly different in their state of tune, and it is always possible they were in a different state of repair. While there’s not enough information or “evidence” for court, there is
strong circumstantial evidence that the unit @
Gilligan was campaigning was not defective. The fact that it’s in use by a subsequent user without the problems strongly suggests this - but does not prove it outright in and of itself.
OTOH, in his shoes I’d have pulled the PC too assuming it was the last or last combination of modifications - and this ladies is why you make one mod at a time. The (reported) fact that the surging did not reoccur does at least suggest on a base level that the combination of the pc and his truck was not optimal but the cause is not known.