How do I fix a high idle problem?

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The car idled at 1100 rpms. I tried to adjust it with the idle screw, and it only dropped down to 900-800, and then the idle started fluctuating around that range as well. How can I fix this problem? I can't lower it any more with the idle adjustment screw.

user38226 in Victorville CA

Sep 24, 2012

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RepairPal Certified shops can diagnose and repair your 1991 Nissan 240SX. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

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How do I fix a high idle problem?

What is your question?

user38226 in Victorville CA

Sep 24, 2012

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holston2008on Sep 25, 2012

sounds like you may have a bad idle air control valve, i would replace it and see what happens, also check for intake leaks

ziptie12on Sep 28, 2012

And will probably want to return adjustment screw back to original position.

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Popular Answer

What are the best Nissan repair shops?

RepairPal Certified shops can diagnose and repair your 1991 Nissan 240SX. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.