There is a TSB that addresses your problem. Check
http://www.hondalac.com/service/Bulletins/x01-004e.pdf

check wrote:
>
> the accelerator on my honda 2000EX seems to be sticky esp when i start my
> car after a few hours of stop.
>
> lets say i m starting my car in the morning... i'll have to tap on my
> accelerator for it to be normal.. it just seems to stick. but once I tap
> it... its works fine for the rest of the drive. the same if happens if i
> leave a car for af few hours, then again the accelerator is stuck to its
> position.
>
> any one got any idea what this could be?
>
> thanks,
>
> -B