U0665

Lost Communication With Fuel Rail Pressure Sensor Bank 2

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Unstable idling
Difficulty starting the engine

Causes

Open or short circuit in the wiring to the sensor
Fuel pressure sensor malfunction
Problems with the sensor connector
ECU module malfunction
Problems with power supply or sensor ground

How to Fix

Check the integrity of the wiring to the sensor
Check the sensor connector for corrosion or damage.
Check the power supply and ground of the sensor
Test or replace fuel pressure sensor
If necessary, carry out ECU diagnostics

Related codes

U0664 U0666 P0190 P0193