I appreciate all of the replies. John, I know what you mean about just going ahead and backdating the CIS to a non-Lambda system. It makes sense and you know it will work. I have located a '83 Euro system, but Dang it, if I am going to do that why not just get an EFI and chunk CIS? For now I am enjoying the challenge of trying to sort out this fuel distributor.
I have found alot of information in the past few days regarding the Lambda system. I figured I might as well share the info I located. There is some great stuff on CIS out there, you just need to dig. (not enough to find a clear work-around as of yet)
Ayway, the Lambda system works as follows (explaination for the Lambda version of K-Jetronic by Jim Newkirk):
A car equipped with K-Jet Lambda also changes control pressure with a warm-up regulator (with pressures similar to a plain K-Jet system), but also controls lower chamber pressure in the fuel distributor by bleeding pressure through a frequency valve. By modifying lower chamber pressure, a change in volume of injected fuel is made, enriching or enleaning the mixture. The frequency valve is nothing more than an electrically duty-cycled fuel pressure regulator controlled by an on-board computer in response to an oxygen sensor signal. This system provides a more precise and rapid control of fuel mixture. Typical duty cycle on a properly running engine is 45 percent to 55 percent duty and fluctuating. A quick test of this system is to start the engine and test the frequency valve for vibration or noise -- it should vibrate. Also, unplugging the oxygen sensor will put the system in open loop and fix the frequency valve at a 50 percent duty cycle.
The link to the entire article can be found here:
http://www.asashop.org/autoinc/june97/techtips.htm
It seems that 50% duty cycle is the default vice the 60% I believe I had previously mentioned.
Any interest in what the different CIS components look like and an explaination of what they do? Check this link out:
http://members.rennlist.com/jimwms/CIS/components.html
And for those with an interest in reading the actual manual, here is a link to the Bosch K-Jetronic manual:
http://www.phat-gti.com/downloads/boschtech-12d.pdf
So if the frequency valve affects the lower chamber pressure, why can't you remove the valve to create a static flow of fuel out of the distributor? Wouldn't a restricted fuel line work the same as a 50% duty cycle?
It sounds like if the frequency valve line is 100% plugged then fuel pressure gets too high in the lower chamber. Can you compensate by increasing the upper chamber to create an equilibrium? If there isn't enough adjustment in the distributor then a restricted line might be the ticket.
At this rate, I think I could have already moved over the Lambda unit...