Question about 1997 Honda Civic

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The check engine indicator of my 1998 honda civic is always on and the idling keeps at 1500 rpm. what's the possible problem ? is it possible that idling problem is cause of a defective computer box?

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Generally this would be related to either a vacuum leak, an idle speed control motor or a throttle positioin sensor. The computer uses these things to determine where to set the idle at after interpreting all of the data "sensed". You can check for vacuum leaks with a can of carburetor cleaner by sprayng a small amount using the extension tube, near the vacuum connections and the throttle body and air intake components. IF you spray a small amount at a time you won't have a potential fire hazard. When carb cleaner is sucked in through a vacuum leak, the engine slows down & this will identify a spefic location or hose.

You could stop by your local parts store & probably get a free scan for the check engine light & that could indicate more readily what a problem could be. good luck

Posted on Jan 31, 2010

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