Idle Problem

[Paul_JC]

Hi i am a new member i have recently bought a '99 1.2 16v corsa b

I bought it cheap as it needed a new lambda sensor for the MOT and the guy i bought it from just wanted rid, i bought it from him and he fitted a new lambda but left me to MOT it but now i am gettin a strange problem where it seems to idle fine but once you rev it and the revs drop again it starts to choke itself also if you keep revving the throttle it starts to choke

Any ideas?

Thanks In Advance

[jamie695]

possblly the air mass?