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1992 Subaru Loyale Question: How do I lower engine idle speed,or what part needs replacing? Rpm is 1500

 

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rotifer, Gustavus, AK, September 05, 2012, 10:23
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Car is 4wd wagon, 1.8 TBI engine, it revs very low when first started then idles very high after it warms up, 1500 rpm, normal is about 700.

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    September 05, 2012, 13:48
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     Master

    Check for vacuum leak.

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    rotifer, September 06, 2012, 08:03
     Rookie

    Thanks for your reply. I have checked for that using a can of starting fluid and spraying around vacuum lines to no avail. But, I will try again as that has been suggested a couple times. I live in a remote area with no mechanics that can deal with this so I'm groping in the dark. I thought of unplugging certain components when its running to see if that shows me the component problem.

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    pushrod, September 06, 2012, 08:07
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     Master

    Try cleaning throttle body and idle air control with carb. cleaner.
    GOOD LUCK.

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