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92 400E fast idle - where to start ?

02-13-2002, 04:43 PM

RM92400E

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Join Date: Oct 2001

Location: Raleigh, NC

Posts: 51

92 400E fast idle - where to start ?

I've searched the archives, but have not seen a post relating to the idle problem I seem to have. Car is a 1992 400E w/126,000 miles. Car just started exhibiting a fast idle problem. Car starts and idles fine until engine begins to warm up. After engine has warmed to 40-60c, engine now idles at 1200-1400 rpm when in park.

ASR light is not on.

Any ideas on where to begin looking would be appreciated...

Thanks,
Ray

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