Nissan Sentra B18 (2020-2025) Service Manual: Fuel Tank Vacuum Relief Valve
Component Inspection
Component Inspection
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CHECK FUEL FILLER CAP
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Turn ignition switch OFF.
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Remove fuel filler cap.
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Wipe clean valve housing.
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Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
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Check valve opening pressure and vacuum.
Pressure:
15.3 – 20.0 kPa (0.156 – 0.204 kg/cm2, 2.22 – 2.90 psi)
Vacuum:
−6.0 to −3.4 kPa (−0.061 to −0.035 kg/cm2, −0.87 to −0.49 psi)
Is the inspection result normal?
YES >>INSPECTION END
NO >>GO TO 2.
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REPLACE FUEL FILLER CAP
Replace fuel filler cap.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may illuminate.
>>INSPECTION END
Other materials:
P2297 Air Fuel Ratio Sensor 1
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
conditi ...
Fuel Tank Temperature Sensor
Component Inspection
Component Inspection
CHECK FUEL TANK TEMPERATURE (FTT)
SENSOR
Turn ignition switch OFF.
Disconnect fuel level sensor unit and
fuel pump harness connector.
Remov ...
P0137 Ho2s2
Dtc Description
DTC Description
The heated oxygen sensor 2 has a much longer switching time
between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen storage
capacity of the three way catalyst (manifold) causes the longer switching
time.
...