High Fuel Pressure Check

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Since the fuel pressure gauge kit cannot be connected, follow the method shown below to check high fuel pressure.

WITH CONSULT

Start engine.

Check "FUEL PRES SEN V" in "DATA MONITOR" mode with CONSULT.

Monitor Item	Condition	Values/Status
FUEL PRES SEN V	Idle	980 - 1, 200 mV
FUEL PRES SEN V	Revving engine from idle to 4, 000 rpm quickly	1, 100 - 2, 900 mV

WITHOUT CONSULT

Start the engine.
Check fuel rail pressure sensor signal voltage.

+		-	Condition	Value (Approx.)
Fuel rail pressure sensor
Connector	Terminal
F26	2	Ground	Engine speed: idle	0.98 - 1.2 V
F26	2	Ground	Engine speed: Revving engine from idle to 4, 000 rpm quickly	1.1 - 2.9 V