Hello again, Well after replacing my Fuel distributor on my 1986 560SL with one from a 420, and having the idle set with a Lambda meter to the 45-55% range, this baby purrs and flys. The only thing wrong with having a fast car, is all the slow drivers in the way.

Thanks you for all the assistance.
Question? Is there a schematic for building your own Lambda Meter? I did read about how to use various multimeters but having the box itself would be a great asset to everyone.

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Monty