Component Inspection

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Turn ignition switch OFF.
Remove EVAP control system pressure sensor with its harness connector. Refer to Removal and Installation .
Always replace O-ring with a new one.
Install a vacuum pump to EVAP control system pressure sensor.

Turn ignition switch ON and check output voltage between ECM terminals under the following conditions.

ECM			Applied vacuum kPa (bar, kg/cm ² , psi)	Voltage
Connector	+	-
	Terminal	Terminal
E10	121	148	Not applied	1.8 - 4.8 V
			-26.7 (-0.267, -0.272, -3.87)	2.1 to 2.5 V lower than above value

CAUTION:

Always calibrate the vacuum pump gauge when using it.
Never apply below -93.3 kPa (-0.933 bar, -0.952 kg/cm ² , -13.53 psi) or pressure over 101.3 kPa (1.013 bar, 1.033 kg/cm ² , 14.69 psi).

Is the inspection result normal?

YES

INSPECTION END

Replace EVAP control system pressure sensor. Refer to Removal and Installation .