I have code P1457- the Auto Zone printout recommends replacing the EVAP Emmissions 2 way valve - anything to look out for? Best source of part?

 

What year and model car?

Codes can not always just be fixed by replacing a part.

 

I actually just pulled my valve and cleaned it up with a wire wheel and a bit of brake clean. Re- installed the gasket with just a tiny bit of RTV and my check engine light has stayed off. I followed this video- Beware those screws SUCK to get out. I had to use a vice grips to get mine free. Whoever thought putting phillips head screws on this part that is subjected to the elements deserves a punch in the arm.

Good Luck!