i learned form nissan service, they told me that sensor which is to report the air inside gas tank is borken. what is that one for? it is located at back, under car at the driver side close to bumper over differential.it was the fault which cause the check engine soon light. It is evaporation sensor error. Now i learned that 3 under hood and 2 at back there are 5 evaporation sensors in pathfinder.. damn, what is an evaporation sensor? new one costs 400 USD !!!
i think i can remove the that bulb which is behind check engine message

can you believe a simple 3 USD worth bulb can save the day? actually car is running smooth and there is no evident problem. just evaporation sensor error.
coments?