U066F

Lost Communication With Low Pressure Fuel System Sensor

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

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

Causes

Open or short circuit in the sensor circuit
Low fuel pressure sensor malfunction
Damage to the sensor connector
Circuit Grounding Problems
Engine ECU malfunction

How to Fix

Check the integrity of the wiring harness to the sensor
Check connectors for corrosion or damage
Test low fuel pressure sensor
Check pressure parameters in the fuel system
Replace sensor if necessary

Related codes

U066E U066D U0670