RepairPal is your advocate for car care advice and guidance

Q: PO443 on 2002 Buick Regal

The engine light is always onwith the following message "PO443-Evap emission control purge valve C fault". The car doesn't pass inspection.
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
need to have diag to find problem. a scan tool will activate the purge valve and turn it off. could be anything from a bad valve to a computer. take it to a shop.

Didn't find what you were looking for?