Mazda 3 2006 ODB Code P0455, P2187, P0442

Hi, I have a Mazda 3 2006 which read the following:

About a week ago: (p = pending)
p0455
P2187
P0455 p
P2187 p

A couple days ago:
P2187 p

Tonight:
P2187
P0442 p
P0455 p
P2187 p

Also had problems starting the car after filling with Gas tonight.

I'm assuming the issue is a purge valve? If so, any easy way to test a purge valve without vacuum? Seems to be the only way I could find online.