check engine light still on on 2000 Cadillac DeVille

replaced evap soleniod near gas tank and the one on the intake also replaced gas cap. cleared code po443 drove car for mabout 5 miles light came back on still code po443. what else to dO???????

Asked by for the 2000 Cadillac DeVille
have it properly diaged by a shop to give you exact problem. your wasting your money throwing parts at it. evap codes are hard to track down and time consuming.