Seems like we have some closure. My new OVP relay arrived yesterday and I put it in in the driveway after driving home from work, while braving the 17F air. Thank goodness I could warm my hands on the warm/hot engine. The new relay had 2 fuses and additional male pins, so I was concerned that it was not the right one, but after looking at the wiring diagram on the old and the new, and also seeing that the second circuit extra pins were plugging into dead female connection locations on the relay plug, I could see that having an extra circuit didn't matter. (for the record the fuse was good on the old OVP relay)

Anyway, to cut to the chase, the idle was steady today, and the tach kept working, so alle is gut, as they say. My next challenge is that the squirter nozzle heaters don't seem to be working.... gotta check those this weekend when I can get in the garage.

Rgds,
Chris W.
'95 E300D, 434K

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Objects in closer are mirror than they appear.