1999 Laser engine stalls

[DrFalconstein]

Hi wonder if anyone has had this problem, Ive got a 1999 Laser 1.6 5 speed manual.
When sitting in traffic for a long period of time, or crawling in traffic the engine revs drop and the engine will stop running. and wont re start for about 5 min.
ive replaced the Air flow meter. Its like its not getting enough fresh air, the cars drives great when on the open road.
Cheers Darren