One thing that has be thoroughly baffled at this point is that the car shows a DC of +/-45% with the O2 disconnected and the car runs like crap @ idle. Push the AF Plate in a bit (with O2 connected) and duty cycle jumps from 99% to around 45% (depending on how far you push the plate in) and the car runs great.

So how can the same DC give me 2 vastly different idle qualities?

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Currently:
1972 350SL Euro 4spd
1973 BMW R75/5
1981 BMW R80GS
1995 FZJ80 with OM606 Conversion In Progress