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02-25-2009 10:22 PM #1
Idle Valve and Vacuum hose puzzle
Car is 1977 E12 based 630 Csi.
I think the piece in the picture (URL)is the Idle Air Valve. (RealOem URL is http://www.realoem.com/bmw/showparts.do?model=5234&mospid=47204&btnr=11_0899& hg=11&fg=45)
My question is why does this not need to be hooked up and why, when I remove all the narrow vacuum hoses (red, white, blue) that are attached to what RealOEM calls the ELECTR.CHANGE-OVER VALVE BLUE and etc, nothing seems to be affected.
I do have a fast idle problem (1200 rpm) but that is unaffected by connecting or disconnecting these hoses. I realize that this is the Fives Forum but I am hoping you can help!
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