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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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.

1991 Nissan 240SX auto repair 1991 Nissan 240SX estimates 1991 Nissan 240SX questions 1991 Nissan 240SX problems 1991 Nissan 240SX recalls

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

1 Reply

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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.

1991 Nissan 240SX auto repair 1991 Nissan 240SX estimates 1991 Nissan 240SX questions 1991 Nissan 240SX problems 1991 Nissan 240SX recalls

1 Reply

Popular Answer

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.

Reply in Thread

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