Canister? Lets see...what are the things in that general area that may resemble a canister.
You've got the fuel vapor/charcoal canister that is in front of the strut tower/under the airbox, that has vacuum lines going to it...then you've got the transmission shift modulator in front of the engine and transmission lower down that has a vacuum line going to it...and then you've got the cruise control servo directly under the master cylinder, directly in between the strut tower and engine.
could you please take a photo? that'd help alot.
and as for your pcv valve, its VERY easy to get to.
it is located on the passenger side of the upper intake manifold...
Here (excuse the filth)
As noted, under the cover. Its a round depress and twist to remove type thing. Make sure to replace exactly as found, paying close attention to the o-ring(*) This should be done every 30k fyi.