U0665
Lost Communication With Fuel Rail Pressure Sensor Bank 2
U0665 is an OBD-II diagnostic trouble code meaning: Lost Communication With Fuel Rail Pressure Sensor Bank 2. Common causes: open or short circuit in the wiring to the sensor, fuel pressure sensor malfunction. Estimated repair cost: $33–89.
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
Error U0665 by Vehicle Brand
FAQ
What does the U0665 code mean?
U0665 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Fuel Rail Pressure Sensor Bank 2
What causes a U0665 error code?
The most common causes of U0665 include: Open or short circuit in the wiring to the sensor; Fuel pressure sensor malfunction; Problems with the sensor connector; ECU module malfunction.
How do I fix a U0665 diagnostic trouble code?
To fix U0665: 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. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0665?
Limited driving only, diagnose soon
How much does it cost to fix U0665?
The estimated repair cost for U0665 is $33–89. Actual cost depends on your vehicle, location, and labor rates.
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