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P1490 Diagnostic Trouble Code Discussion for October 2006

EVAP Vacuum Cut Valve Bypass Valve Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1490
Help Request Posted
2002 Nissan Xterra SE 3.3L MIL Lamp on VIN: 5N1MD28Y0S
P1490: EVAP Vacuum Cut Valve Bypass Valve Circuit Malfunction. Complaint is the MIL comes on. Code p1490 for evap vac cut by-pass valve. Went through the mitchell flow chart and problem is not found at this time. Took a gamble and replaced the valve, reset the MIL and retested the light came back on right away, same code....
October 05, 2006