Closed loop and Lambda are essentially the same thing. Your meter might change, but you do NOT have Lambda until you see the meter oscillating (sp?).
Lambda is essentially the mixture changing in response to the O2 sensor; The sensor reads lean, the mixture drives rich, then the O2 sensor reads rich, so the mixture drives lean. THAT is Lambda and you ain't got it (yet).
It is a rather old fashioned system (although way advanced compared to a carburetor!).
Today what the mixture SHOULD be is guesstimated (OK, calculated) and the O2 sensor verifies that it is correct.

Gilly

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Oh, what holds the adjustment tower down are tamper-proof screws, you would back them out by getting them rotating (ccw like normal) with a small hammer and chisel. Once loose you can usually get them by finger or a small needle-nose pliers.
Gilly

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Had some issues with getting the car started, then I saw about a pint of gasoline in the air intake. maybe leaking fuel distributor, or something else,,, anyway, I got the gas out of there and here is where I am,,,


http://www.benzbonz.biz/video/300estartstall.wmv

65K on the clock,,,

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