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Old 02-06-2001, 12:15 PM
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1987 W126 420SE V8 revs at about 1600rpm at tickover / idle. Need to know what to adjust to bring it down a bit, as I do not want to mess with the fuel injection without some direction. Thanks

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Old 02-06-2001, 09:25 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
You will need to check what system is failing. It could be the throttle switch, idle valve, or controller for the idle. I would have a pro look at this. I have seen many misdiagnoses over this complaint.

Donnie Drummonds
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