My 1.5 L manual Accent 2000 - the idle speed when stationary sometimes
suddenly starts to surge by itsself. I tap the acelarater to try and
clear it but this usullay results in the idle speed increasing further.
I need to turn the engine off and restart which corrects the problem.

I took it to a mechanic who did a quick check for me. He checked the
codes which seemed OK and then he blew out some of the throttle
mechanism in case there was some dirt - this seemed to do the trick but
after two days the problem has reoccured.

Any ideas or suggestions would be appreciated
Thanks
David