Component Inspection (Fuel Rail Pressure Sensor)

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 FRP SENSOR

With CONSULT

Turn ignition switch OFF.
Reconnect harness connector disconnected.
Start engine.
On CONSULT screen, select "ENGINE">>"Data Monitor".

Check that the "FUEL PRES SEN V" indication.

Monitor Item	Condition	Values/Status
FUEL PRES SEN V	Engine speed: Idle	1.120 - 1.310 V
FUEL PRES SEN V	Engine speed: Revving engine from idle to 4, 000 rpm quickly	1.120 - 2.900 V

Without CONSULT

Turn ignition switch OFF.
Reconnect harness connector disconnected.
Start the engine.
Check FRP sensor signal voltage.

ECM			Condition	Voltage
Connector	+	-
	Terminal
F78	53	83	Engine speed: Idle	1.12 - 1.31 V
			Engine speed: Revving engine from idle to 4, 000 rpm quickly	1.12 - 2.90 V

Is the inspection result normal?

YES

INSPECTION END

Replace FRP sensor. Refer to Exploded View .