Code P0450 - 1998 Nissan Maxima

Question

Check engine light is on. It also failed emission test

Answer 1

Hi there,

This code is for the evap system pressure sensor. This is mounted under the hood and tells the computer when to open the purge solenoid. Common causes are usually not the pressure sensor, but a leak in the evap emissions system or a problem with the purge solenoid.