Not a happy camper:

code P0441 valve replaced new from atlantic british -one day light came back on now what???

 

Gas cap. Make sure its tight. Or get a new one.

I had the same code, replaced the purge valve. Code stayed off for a couple months. Came back on and noticed the gas cap wasn't very tight. Tightened and cleared the codes. No more P0441.

 

Pete Sorry forgot to tell I replaced with new cap and filled tank myself and turn it down good -went approx 20 miles and it came back-I guess get the codes read again