check engine light : code 1450

[DavidT]

Well, I have gotten this code a few times in the past 2 months. Do I need a new gas cap?
I got this from v8sho.com:

Can someone translate this please ?

 

[SHOZ123]

I was getting that for a while and cleaned off the cap and filler neck contact area with a rag. Haven't had any problems since last summer.