Question

Where's Fuel Tank Pressure Sensor in 2002 Nissan Xterra 3.3L V6? I got the engine code P1490

Answer 1

HI there

This code points to a problem with the vacuum cut bypass valve and not the fuel tank pressure sensor. 

P1490 NISSAN - Vacuum Cut Valve Bypass Valve
Read more: https://www.autocodes.com/p1490_nissan.html