dies at stop signs on 2000 Ford Contour

I just bought a used 2000 svt contour and it stalls somtimes at stop signs what could be the reason?Ijust changed plugs!!

Asked by for the 2000 Ford Contour
Try focusing on the idle valve, when they get old/dirty this problem occurs. You can try cleaning it or it may need to be replaced.
1 more answer
(iac) valve