On Sat, 27 Apr 1996, Sean Bartnik <sbart7kb@www.mwc.edu> wrote: >I was just curious as to what kind of Bosch fuel injection system was >used on late breadloaf buses ('75-'79). Is it L-Jetronic or K-Jetronic? >What's the difference? I read this somewhere before (in a Bosch FI >book) but now I can't remember. The FI system in your bus is Bosch L-Jetronic. The L is short for the German word luft, which means air. In this system the amount of fuel injected is based on how much _air_ enters the intake. This system also goes by the moniker AFC for Air-Flow Control. The Bosch K-Jetronic is the first Continuous Injection System (CIS). I think it was used on water-cooled Rabbit/Golf VWs. The K is short for the German word for continuous (Kontinuerlich). It's mostly a mechanical system in the early versions. Over the years, both systems were refined by the addition of an oxygen sensor to attain a more precise air/fuel mixture. This is named Lambda control. Jack '73 Westfalia ('78 motor) Costa Mesa, CA
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