P1490 Nissan - Vacuum Cut Valve Bypass Valve
Possible Causes:
- Faulty Vacuum Cut Valve Bypass Valve
- Clogged vacuum hoses to the Vacuum Cut Valve Bypass Valve
- Vacuum cut valve bypass valve harness is open or shorted
- Vacuum cut valve bypass valve electrical circuit poor connection
There are several technical bulletins covering 2002-2005 Nissan Altima models.
