I've posted before but didn't get much help.  Has anyone else dealt with P0453 Tank Pressure Sensor - Short to B+ code?
My car is in storage for winter but I'd like to plan on fixing in Spring.  Should I just order a new sensor like this one?
https://www.pelicanparts.com/cgi-bin/ksearch/pel_search_2016.cgi?command=DWsearch&description=tank+pressure+se
I saw somewhere that gas cap is typical misdiagnosis.  And I've seen references to leaks in canister or elsewhere.  
Is this code for low pressure or high?
Help!