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On Board Diagnosis Logic NCEC0585 NOTE: SEF323U Malfunction is detected when EVAP control system has a leak, CAUTION: I Use only a genuine NISSAN fuel filler cap as a replace- I If the fuel filler cap is not tightened properly, the MIL may I Use only a genuine NISSAN rubber tube as a replacement. Possible Cause NCEC0586 I Incorrect fuel tank vacuum relief valve I Incorrect fuel filler cap used I Fuel filler cap remains open or fails to close. I Foreign matter caught in fuel filler cap. I Leak is in line between intake manifold and EVAP canister I Foreign matter caught in EVAP canister vent control valve. I EVAP canister or fuel tank leaks I EVAP purge line (pipe and rubber tube) leaks GI MA EM LC FE CL MT AT AX SU BR ST RS BT HA SC EL IDX DTC P1440 EVAP CONTROL SYSTEM (SMALL LEAK) (POSITIVE PRESSURE) On Board Diagnosis Logic EC-515 |