Been dealing with this Check Engine P1450 for almost a year

I've been dealing with this Check Engine P1450 for almost a year now, I changed the gas cap and the purge valve located near the intake manifold.

Now, seeing online and been told by peeps to check for the Canister located underneath the vehicle left rear side passenger beside the gas tank but the only thing that I'm seeing is a small black piece that's called Fuel Pressure Sensor. I'm worried that if I remove this I may spill gas? Help!

Thanks, Gusy

2015 CX-9
 
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