Ok, so a couple weeks ago I got a bunch of codes and I replaced the (N80) Purge Valve & Gas Cap (These are the codes I was getting: P0171, P0442, P0455, P0456). As soon as I had the codes cleared I drove down the road and it threw this code at me (P0444 - Evaporative Emission System Purge Control Valve Circuit Open). I've cleared it and it comes right back on.

Any Ideas????

Thanks.

 

Though rare, it is possible to get a bad part. What brand part is it? Is it of quality or of Orielly's quality? Since they are pretty cheap, maybe try another one. Gas cap on correct?