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Old 08-28-2009, 09:25 AM
whh
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Default 2003 pathfinder code 1490/1491

I'm new to the forum, looking for some help.
Engine light problem, nissan service serviced and replaced evap purge valve. Next day light was on again. This time, code 1490/1491, vacuum cut valve and bypass cut valve solenoid. My wallet was empty, so I passed on paying nissan another $500 to fix.
Now, I need to get the car inspected by DMV, so it needs to be fixed. I investigated the repair, saw that it was not difficult, purchased the parts from the dealer and replaced. Cleaned out broken plastic pieces from cut valve and so forth. Everything went together well.
The bad news is the light is still on. That brings my question, does the cpu need to be reset? Will it auto-reset if given time? I disconnected the battery for a short time, which did nothing.
Any advise what to do next?

Bill

Last edited by whh; 08-28-2009 at 09:26 AM. Reason: can't spell
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