According to 'Bosch Fuel Injection & engine Management", by Charles Probst:

The first continuous injection system (CIS) (1977) was K-Jetronic. Air flow
is measured by a circular plate in the air-flow sensor, which is
mechanically linked to the fuel distributor.  Until 1980, fuel delivery is
strictly under mechanical control in direct relation to air flow; there are
no electronics.  VW, Audi, and Mercedes call it CIS.

K-Jetronic with Lambda Control is an adaptation of K-Jetronic mechanical
control.  The mixture is modulated with a limited electronic control in a
feedback system to maintain a precise air-fuel ratio.

KE-Jetronic combines K-Jetronic mechanical control with total electronic
modulation of the mixture.  It uses many of the same sensors used in
L-Jetronic (a pulsed fuel injection system).  It's capable of full
mechanical fail-safe if the electronics fail.  VW, Audi, and Mercedes call
is CIS-E.

Andy Hecker
CIS in a '77 Rabbit (RIP)
Digifant II in an '88 Jetta

-------
Paul,

  First - I'm sorry for the typos, and 'editing' compliments of MS word
'autocorrect'.  It didn't like 'Jetronic' apparently.  The systems described
above are all 'Jetronic', not 'electronic(s)'.

  Second - the author of the 'Bosch..." book said his production year
references (like the 'first seen in 1977' comment above were for the US
market only.

  The chart lists injection in VWs from the Type 3s...

  On the history front - also from the Bosch book:

 "Bosch passenger-car fuel injection first appeared in 1927 as a diesel
design using engine-driven pumps developing high pressure to deliver diesel
fuel into the cylinders - direct injection.  In 1937, these pumps were
adapted to aircraft engines, with both diesel and gasoline fuel
applications.  In 19565, similar engine-driven gasoline injection pumps were
developed for the Mercedes-Benz race cars and the 300SL production car,
again injecting fuel at high pressure directly into the cylinders.

 "The fuel-injection systems described in this book first appeared about
1967.  They are completely different from engine-driven systems, delivering
fuel at much lower pressures at the intake ports, and are generally
electronically controlled.  The early Bosch literature describes these
systems as "non-driven".  Bosch coined the term "Jetronic" to establish a
common identity for their new designs in most of the 135 countries in which
they operate.


Andy
-7 from the Russian judge for (lack of) editing...



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