Steve,
Thank You for responding.
My valve is spliced into the fuel distributor.
There is a blue and a red lead going to it from the Lombda system control box.
What's the safest way to determine which lead is negative? I don't want to short anything out.
If I decide to remove the frequency valve should any other component(s) of the system also be disabled?

Thanks,

Knarf

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72 350SL #69
73 450SL Parts Car?
78 450sl Parts Car
79 450SLC - Sold
1985 280sl
87 190E 2.6 - Donated
90 300E-Junked
97 E420