DTC P0191: Fuel Rail Pressure Sensor Circuit Range / Performance [09/2014 - 11/2017]: Description

WARNING: This page is about a different car, the 2017 Lexus RC 350, 2017 Lexus RC 300, 2016 Lexus RC 350, 2016 Lexus RC 300, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0190.

Refer to DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P0191	Fuel Rail Pressure Sensor Circuit Range / Performance	Either of following conditions is met (2 trip detection logic): When target high pressure side fuel pressure changes, the change in fuel pressure sensor value is abnormal. Although engine has been stopped and left as is for a long time, high pressure side fuel pressure is higher or lower than threshold.	Fuel pressure Fuel delivery pipe sub-assembly (fuel pressure sensor) Open or short in fuel pressure sensor circuit ECM	Comes on	DTC stored