KISS System

[Gary Derian]

If there is no other connection to the control pressure line, that valve
would control mix ratio based on engine temperature.  Your car should have
no catalysts, either.  The open loop CIS you have enabled cars to meet
emissions up to 1979 without catalysts.  They did resort to retarded
ignition timing at part throttle.
Gary Derian <gderian at cybergate.net>
>
>I'm hoping to.  Though with all the recent mail on CIS systems, I'm
>getting confused about my cars system.  IT is labeled as a K-Jetronic
>(plain jane type).  ITs a 1979  Porsche 924, with NO O2 sensor,  but it
>has that valve mounted on the exterior of the fuel distrib that looks like
>a fuel injector that connects the control pressure line, to the return
>line. (this appears to be a frequency valve) which the KE-Jet.. uses to
>adjust the mix.  The funny thing is how is it going to know when to work
>when there isn't an O2 sensor, and no apparant computer, other than the
>bosch ignition applifier.  So what purpose does this little sucker serve??
>
>Dave
>