Found a bad fuel injector, it was grounding to the case when up to temp.
Replaced both injectors with new ones.
Driveability got better for a while, then the gremlins came back, still going into limp mode, loses com, MIL on and running poorly. It's random but recurring.
Wired the trans for full manual control to get around limp mode, at least it was driveable for a day.
Second day was bad, MIL would come on and engine would die and not restart. PCU seems very unhappy.
Currently broke down in rural central Nevada awaiting (yet another) replacement PCU.
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