To find the relevant fuses, you need to check your owner's manual's fuse box diagrams. Look for fuses related to the PCM (often labeled as "Powertrain" or similar) and the fuel system. These fuses provide the overall power the PCM needs to operate and control components like the purge valve. A blown fuse in this area could prevent the purge valve from functioning.
Important Note: A malfunctioning purge valve often doesn't blow a fuse. A diagnostic scan tool (OBD-II) is the best way to diagnose problems with the EVAP system, including the purge valve. A simple fuse check is a good first step, but it won't solve the problem if the valve itself is faulty or there's a wiring issue.
