Component Inspection

WARNING: This page is about a different car, the 2020 Infiniti QX60. 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.
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 harness connector terminals under the following conditions.

ECM			Condition [Applied vacuum kPa (kg/cm ² , psi)]	Voltage
Connector	+	-
	Terminal
E32	173	200	Not applied	1.8 - 4.8 V
			-26.7 (-0.272, -3.87)	2.1 V to 2.5 V lower than above value

CAUTION:

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