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1985 240 Idling WAY too high 200

posted by  capefearless on  Mon May 13 04:19 CST 2002
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I replaced the main engine wiring harness on a 1985 240, and now the cold idle is at about 2500 RPM. I removed the Idle Speed controller and cleaned the mechanical portion of it with carb cleaner, reinstalled and still too high.

If I disconnect the wires going to the idle speed control it idles fine, but stumbles/dies when I press the accelerator.

What does this indicate? A bad idle speed control? Bad signal to it? Nothing?

Help please!

Thanks in advance,

Chris

P.S. I do not have the throttle switch wires and the idle speed wires switched.
--
1987 245DL, only god knows how many miles. Damn that little plastic gear.






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