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> Not sure about a "bug" as such, it's a documented intentional design > feature on some of the control units that the fuel is cut while the > RPM is high and the throttle is closed, e.g., while coasting down > hill. After the engine slows down to idle speed, fuel injection is > started back up. I think I saw it in the Bosch FI manual, but not > sure. Not a bug at all, but a documented, advertised feature. > Apparently it wasn't well received by the driving population, > later ones didn't have it. I have one of these controllers. The idea > was to save some gas. It does kind of give the impression of an old > lawn mower while driving in traffic and coasting to the next light. > The odd thing is that the PN label is a black "D" suffix one, just > like my other one that doesn't have it. Kind of hard to tell by > looking then. This is on a '71 SB. Have never had it happen while the > gas pedal was depressed, I suppose it could happen if the accel side > of the throttle position switch was open while the butterfly was still > open, misadjusted or dirty, in other words. This is what the adjustment of the throttle position switch is for. I got 31.5 mpg with this > controller between Sparks and Winemmuca, NV, with 800 lbs. of stuff, > plus me and the cat. That would be downhill with a tail wind. ;-) Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA *******************************