98 honda accord rpm goes up and down when in park?

98 honda accord rpm goes up and down when in park?

Check the ICV or look at this link, it'll help:
http://www.ericthecarguy.com/forum/8-Service-and-Repair-Questions-Answered-Here/41476-solving-honda-idle-issues-hunting-idle

Did you leave the AC system running? The engine will automatically idle up when the AC compressor kicks in.

Check for vacuum leaks if its not that you will have to clean your throttle body (you will have to take the throttle body out of the car and changing the throttle body gasket is mandatory).

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