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1992 300D OM602 feels like it is running rich
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02-08-2023, 11:52 AM
ah-kay
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Join Date: Mar 2009
Location: San Diego
Posts: 3,540
I would try the simple thing first.
1) change ovp relay. Faulty ovp can cause erratic idle.
2) do a compression test. Could be stuck rings if it drives well at freeway speed.
3) ip, very unlikely.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.
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http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html
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1 x 87 300D
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1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
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