2004 Kia Optima P0446 Fault: Engine Stalls After Restart, Occurs 2-3 Times Per Week

Model: 2004 Kia Optima Fault Code: P0446 Posted: 2014-07-21 11:32

My 2004 Kia Optima is throwing diagnostic code P0446, associated with a 4-cylinder engine. The vehicle cuts out or stalls unexpectedly and restarts instantly. This issue occurs approximately 2 to 3 times per week, especially after driving for extended periods. The car has reached 70,000 miles and the problem started recently. I'm concerned about potential emissions system failure and possible need for a replacement evaporative emission control system component.