i keep have this code: p0453

this is the background what i done to my car. The car came with a single cam d16y7 and it not have any problem. After i swap the car to a b16a2 the check engine p0453 pop out. Also i'm use the the 99-00 civic si ecu. I did a some resrearch i know its "Evaporative Emission Control System Pressure Sensor Malfunction". I'm not sure where to start check the problem. I was wonder does it had to do with the fuel tank pressure sensor? i'm not sure if the 96-98 civic dx have a fuel tank pressure sensor cause my old engine don't even have a canister sensor. Give me some help, thanks!!!

 

Yeah, it's the gas tank fuel emissions systems. Carefully check for a leak in the EVAP vacuum lines:

 

thanks for the help, so right now i have the 96-98 ex canister . i was wonder does it matter if i use the 96-98 canister or i have to use a 99-00 canister since I'm using a 99-00 ECU . 96-98 canister are smaller and the 99-00 canister are bigger. thanks again