Surging on idle

[G40sam]

Hi I'm new to g40s just got one but it doesn't idle very well goes between 1000 and 2000 by its self
Do they have a idle control valve
Any help much appreciated

[hayesey]

there's an aux air valve under the inlet manifold which should let more air in when it's cold.  Could possibly be that sticking open.  Also check your ignition timing.

[dub-disaster]

vacuum leak maybe somewhere ?

[cheys03]

Idle control screw on the throttle body too far out.

[G40sam]

Will check all of this thanks