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1990 760 Turbo Idle Control Valve

posted by  volvoseeker on  Sun Apr 18 07:36 CST 2010
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last visit: Tue Aug 27 19:38 CST 2013
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Hi: My 1990 760T is running a little rough. On cold start, idle only climbs slightly and settles back to around 800 RPM. I am getting check engine codes 1-1-3 and 2-3-2. O2 was replaced last summer, and car is stored in the winter. This is the first week I've had it out of storage. It is not stalling when warmed-up, and will start fine. I'm getting a little intermittent black exhaust when driving and I accelerate quickly.

I spoke to a mechanic who suggested checking the idle air control. I've pulled it and the "gate" at one opening is almost shut (maybe 1/16" open).

When the valve functions does it just open fully and close fully? I'm wondering if it is stuck in this almost closed position. Any suggestions appreciated.

Thanks very much in advance.






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