Scott, My car has the rod to the tranny and not the cable. Again, per Mark at Sun Valley, it's an "early, simplified" version. The switches on top of the valve cover are tied to both the IP and the EGR circuit, so I don't think you could bypass them. My car does not have the EGR, but my 1983 300D does and it also has the same vac diagram as it appears in the 1980 MB Service Manual. But my setup is NOT diagrammed in that manual. I have a call into the local MB dealership to see if they have a correct diagram for my car. As best I can determine from a good bit of good input, it is probably the green restrictor in the line going to the IP modulator valve or the IP modulator valve itself. I hope its the restrictor as the IP modulator valve will be almost impossible to find for this car. Best Wishes, Roger Roger Hale Dinnerware Classics, Inc. Monroe, Ga. 770-267-0850 www.dinnerwareclassics.com (new) www.southernnightsantiques.com (antique)
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