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P0080 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


A fuel pressure control circuit issue is indicated by the OBD-II error code P0080 Diagnostic Trouble Code (DTC). This code explicitly alludes to a problem with the solenoid that controls the fuel pressure regulator in the control module.


The indication indicates that there is a fault with the fuel pressure control circuit when the P0080 code is triggered. This can be caused by a fault in the control module’s fuel pressure regulator control solenoid, leading to improper fuel pressure regulation.


The P0080 DTC code may have a number of possible reasons, including:

  • Fuel pressure regulator control solenoid malfunction: The solenoid may be electrically faulty internally or be stuck open or closed.
  • Issues with the wiring or connections: Corroded terminals, loose connections, or damaged wire might cause the electrical circuit to fail.
  • Low fuel pressure: The code can be set off by low fuel pressure, which can be brought on by a clogged fuel filter, a failed fuel pump, or a constrained fuel line.
  • Fuel pressure sensor malfunction: A fuel pressure sensor that isn’t working properly may provide the control module false signals.


The P0080 code may also be accompanied by a number of typical symptoms, such as:

  • Check Engine Light (CEL) On: The most glaring indication of a problem is the illumination of the CEL on the dashboard of the car.
  • Engine misfire or hesitation: When accelerating, the engine may misfire or hesitate.
  • lowered engine performance: The car’s overall performance and power may be lowered.
  • Engine hard starting or difficulty starting: The engine may need several tries to start or may have trouble starting.


It is advised to carry out the following actions in order to correctly diagnose the P0080 code:

  • OBD-II scanner: Use an OBD-II scanner to retrieve the specific code and any related codes.
  • Visual inspection: Conduct a thorough inspection of the fuel pressure regulator control solenoid, wiring, and connectors to identify any visible issues or damage.
  • Testing the fuel pressure regulator control solenoid: Use a multimeter to measure the resistance and voltage of the solenoid.
  • Checking fuel pressure: Use a fuel pressure gauge to measure the fuel pressure and ensure it falls within the manufacturer’s specifications.
  • Inspecting the fuel system: Check for a clogged fuel filter, a failing fuel pump, or any restrictions in the fuel line.
  • Testing the fuel pressure sensor: If necessary, test the fuel pressure sensor to ensure it is providing accurate readings.

Common mistakes

The following typical errors should be avoided while diagnosing and fixing the P0080 code:

  • Ignoring pertinent codes: Examine and fix any further relevant codes that may be a factor in the problem.
  • Insufficient visual examination: Make sure you do a complete inspection of the wiring, connections, and other parts for any obvious issues.
  • Failing to address root causes: Simply clearing the code without resolving the underlying issue can lead to recurring problems.

How serious is this?

Depending on the vehicle and its specific circumstances, the severity of the P0080 code may vary. Problems in engine performance and possible damage may occur if the issue is not addressed. In order not to create additional difficulties, it is necessary to adopt the Code in a timely manner.

What repairs can fix the code?

repair manuals

It might be essential to make the following repairs to fix the P0080 error code:

  • Replacing the fuel pressure regulator control solenoid: If the solenoid is faulty or stuck, it should be replaced.
  • Repairing or replacing damaged wiring or connectors: Any issues with the wiring or connections must be addressed.
  • Clearing fuel system obstructions: If a clogged fuel filter, failing fuel pump, or restricted fuel line is detected, appropriate repairs or replacements should be made.
  • Repairing or replacing a faulty fuel pressure sensor: If the fuel pressure sensor is malfunctioning, it may need to be repaired or replaced.

Related codes

Some related codes that may be associated with the P0080 DTC code include:

  • P0081: Intake Valve Control Solenoid Circuit Low Bank 1
  • P0082: Intake Valve Control Solenoid Circuit High Bank 1
  • P0083: Intake Valve Control Solenoid Circuit Malfunction Bank 1


The P0080 DTC code indicates a problem with the fuel pressure control circuit, specifically related to the fuel pressure regulator control solenoid. In order to prevent engine performance issues and possible damage, prompt rectification of this code is essential. You may be able to fix this problem and put your vehicle back in service with the correct diagnosis and repair work.

The correct diagnosis and repair of P0080 DTC codes must always be sought by a qualified technician.

P0080 Code – What Does It Mean & How To Fix It