Causes and Fixes P0453 Code: Evaporative Emission System Pressure Sensor/Switch High

How to fix P0453 Code: Evaporative Emission System Pressure Sensor/Switch High
A P0453 code is set when the computer (ECM/PCM) detects that the signal voltage from the fuel tank pressure (FTP) sensor, sometimes called EVAP Pressure Sensor, is too high.
The EVAP Pressure Sensor can be located on the fuel tank, on top of the fuel pump, or on the charcoal canister.
While Evap systems are similar, they can be designed differently, so it is best to get a diagram for the year, make, and model of the vehicle.
Possible Causes of a P0453 Code
Pressure Sensor
Wiring Issue
EVAP Pressure is High (Bad Vent Valve, Purge Valve, Charcoal Canister)
Faulty Computer (ECM/PCM)
By using this information user assumes all risk of use.

[@figgiefigueroa7372]

Thanks for sharing

[@jorgeibarra1575]

I have a 2013 Tahoe 5.3 with simultaneous codes P015b and P015d, check engine light went away on its own for one day, then came back on with the same codes in it, can you offer any help, thanks.