User Manual - Page 356

For 2001 XTERRA.

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Diagnostic Procedure
=NGEC0246
1 CHECK FUEL FILLER CAP DESIGN
1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.
SEF915U
OK or NG
OK GO TO 2.
NG Replace with genuine NISSAN fuel filler cap.
2 CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly rotating the cap clockwise.
OK or NG
OK GO TO 3.
NG Open fuel filler cap, then clean cap and fuel filler neck threads using air blower.
Retighten until ratcheting sound is heard.
3 CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
OK or NG
OK GO TO 5.
NG GO TO 4.
DTC P0440 EVAP CONTROL SYSTEM (SMALL LEAK)
(NEGATIVE PRESSURE)
KA24DE
Diagnostic Procedure
EC-356
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