88 560SL Idling

03-22-2023, 09:40 PM

Benzjag

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Join Date: Jul 2019

Posts: 19

88 560SL Idling

I just replaced the 2 fuel pumps on my 88 560SL. The car runs perfectly, but the idling is higher than what I like when HOT! It will idle perfectly at 700 RPM UNTIL it gets hot when it will go to 900. I have replaced the control module behind the dash, idle control valve, hot temperature sensor, and the OVP with no joy!
I also checked the vacuum lines.

Anyone with any other things to check?

Richard

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