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Check engine light on- intermitantly idleing at 2000rpm- Help 200

posted by  ricefive on  Thu Nov 21 08:37 CST 2002
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last visit: Mon Nov 29 07:33 CST 2010
[RELATED]

I have 1990 240 with M47. I check the codes and it said "mix to rich at idle" and "idle ground problem". What is it? The car drives perfect. I reset the light and it has not come back on, but it did idle jun\mpy once after resetting. Help!
--
1990 240- 230K- IPD cam, springs, bilstiens, 3''exhaust, euro lamps








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    Check engine light on- intermitantly idleing at 2000rpm- Help

    posted by  Fuel Pump on  Thu Nov 21 09:36 CST 2002
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    last visit: Tue Apr 17 18:41 CST 2012
    [RELATED]

    I had a simular problem with my 86 740GLE with a high idle and it turned out to be a coolant temperature sensor ground wire that had been broken. So you may want to check it out.

    Brian
    --
    86 240GL, 86 740GLE & others







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