Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Xterra and 2002 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when ECM receives an improper voltage signal from vacuum cut valve by-pass valve. Possible causes are:
- Vacuum cut valve by-pass valve circuit open or shorted.
- Defective vacuum cut valve by-pass valve.