98 Caldina GTT - Idle

[WanaGo]

Hey,

My Caldina GTT (auto) seems to idle just above 500rpm lately. I dont recall it idling this low normally. It seems a bit too low, as you get the odd mis sort of sound every now and then, and you can feel its running a bit slow... sort of vibrates. only to a very minor level though.

I was wondering if there is an idle adjustment screw, or if this is all done automatically?
Could something be leaking?

Thanks

[strx7]

i'd say the idle solenoid thing under the throttle body is probably stuck closed.

[radio8tiv]

mine is doing the same thing
can the solonoid be cleaned or should it just be replaced