Nissan Sentra B18 (2020-2025) Service Manual: Evap Control System Pressure Sensor
Component Inspection
Component Inspection
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CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
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Turn ignition switch OFF.
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Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
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Install a vacuum pump to EVAP control system pressure sensor.
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Turn ignition switch ON and check output voltage between ECM harness connector and ground under the following conditions.
ECM
Condition
[Applied vacuum kPa (kg/cm2, psi)]
Voltage
Connector
+
−
Terminal
E16
131
158
Not applied
0.5 – 4.6 V
−26.7 (−0.272, −3.87)
2.1 to 2.5 V lower than above value
CAUTION:
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Always calibrate the vacuum pump gauge when using it.
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Never apply below −93.3 kPa (−0.952 kg/cm2, −13.53 psi) or pressure over 101.3 kPa (1.033 kg/cm2, 14.69 psi).
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Is the inspection result normal?
YES >>INSPECTION END
NO >>Replace EVAP control system pressure sensor. Refer to Exploded View.
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