i think my throttle position sensor is going bad becuase it does the notorious honda rev up, rev down thing at idle.. but it only does it once in awhile... like when the car is cold and has not been warmed up yet... but it hasnt done it for days and started up again... what do u think?

.. oh yea.. its on a D16Z6

 

hey man it could be a lot of things but i would check your iacv (intake air control valve) over time the filter inside of the iacv clogs up and often times needs to be cleaned. On your d16z6 is on the back of the intake manifold and is only held on by three bolts, and a plug. Take it off and use brake cleaner to clean out the iacv. Get back if that doesn't work.