1999 Honda Civic mileage: 120,000. Recently the idle has become very sporadic. As soon as you start the car the idle will jump from 700 rpms to about 3500 rpms it will hold and then go back down it does this over and over, it will do this whether the car is hot or cold. What is causing this? Please help!
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Tuesday, January 4th, 2011 AT 1:21 AM