[s-cars] NAC: 951 power loss

[Krasusky Paul (WQQ2PXK)]

Gents-

Trying to help a bud out with a sudden power loss on his '87 951 (the
burgundy one @ //SFest).  

Car is driving like a normally aspirated car out of nowhere.  Initially
thought maybe the cat was plugged, but local shop temp tested the inlet /
exit and said it was fine.  He's thinking he 'blew the turbo' but I told him
unlikely...  104k, no symptoms, just sudden loss of power.  Car runs fine
(idle, etc.) otherwise.

Any thoughts from the collective wisdom here appreciated...  I know there's
a few P nuts here.  Sounds like some sort of limp mode or something, no?  

TIA.

-Paul