Thread: High Idle
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Old 04-11-2002, 11:13 AM
Posts: n/a
High Idle

I have looked in the archives for help on this problem, but no luck. I have the high idle problem on my 1989 560 SEC and cant seem to get rid off it. With out spending a whole lot more money on parts I dont need is there a cure. I have replaced the idle valve, the idle speed control unit, the temp sensor and had the fuel adjuster on the intake adjusted with a co2 sensor in the exhaust pipe. I have been told it COULD, repeat COULD be my idle control valve on the bottom of the intake tube in the manifold. Should I go there or am I still fishing? BTW I did cross the two conections on the plug from the valve and the idle came down untill I shut the car off.
Also this seems to be a big job to replace such a small part. any help or thoughts would be great!
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