I have a p410 code,and no full throttle.I'm trying to put the two together.From feel I have weak vacumm,maybe 10. I heard vac should be high as 18 or more.I'm trying to figure out how the air pump works.I suspect somewhere from the airpump to exhaust,there is a valve.Its probably staying open,letting unmetered air in my intake manifold,even with pump off.Now I don't have the EGR working,blocked that off 4 years ago.Is there another valve that likes to crap out?

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt