User Manual - Page 403

For 2001 XTERRA.

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2 CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by 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 6.
NG GO TO 4.
4 CHECK FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FILLER CAP)
1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
SEF427N
SEF943S
Pressure:
16.0 - 20.0 kPa (0.163 - 0.204 kg/cm
2
, 2.32 - 2.90 psi)
Vacuum:
6.0 to 3.5 kPa (0.061 to 0.036 kg/cm
2
, 0.87 to 0.51 psi)
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may come on.
OK or NG
OK GO TO 5.
NG Replace fuel filler cap with a genuine one.
DTC P0455 EVAP CONTROL SYSTEM (GROSS LEAK)
KA24DE
Diagnostic Procedure (Contd)
EC-403
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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