Hi, thanks for the pointers. I was digging a little further in the threads, and I think I am having an ovp relay issue. I gave it a good whack, and the idle jumped for a second before stalling again.

Am I diagnosing correctly? Is there a more scientific way to test ovp?

The micro switch is just an on/off switch, correct? I would just check continuity?

I will re- check vacuum and report, but I think everything is in order.

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Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
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