Engine-CodesGMC – P0090 2014 GMC Sierra

P0090 2014 GMC Sierra Code - Fuel Pressure Regulator Control Circuit

Quick Answer

The P0090 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the fuel pressure regulator control circuit. Common causes include Faulty fuel pressure regulator, Damaged wiring or connectors in the control circuit, Issues with the engine control module (ECM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0090 2014 GMC Sierra indicates Fuel Pressure Regulator Control Circuit.
Common causes
Common causes include Faulty fuel pressure regulator, Damaged wiring or connectors in the control circuit, Issues with the engine control module (ECM).
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P0090 2014 GMC Sierra Description

The P0090 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the fuel pressure regulator control circuit. This code indicates that there is an issue with the fuel pressure regulator control circuit, which is responsible for maintaining the proper fuel pressure in the fuel system. The fuel pressure regulator controls the amount of fuel that is delivered to the engine based on various factors such as engine load and speed.

OBDII Code P0090 2014 GMC Sierra - Fuel Pressure Regulator Control Circuit
P0090 2014 GMC Sierra Code - Fuel Pressure Regulator Control Circuit

Common Causes of P0090 2014 GMC Sierra

  1. Faulty fuel pressure regulator
  2. Damaged wiring or connectors in the control circuit
  3. Issues with the engine control module (ECM)
  4. Clogged fuel filter
  5. Fuel pump failure

Symptoms of P0090 2014 GMC Sierra

  1. Poor fuel economy
  2. Rough idling
  3. Stalling
  4. Hesitation during acceleration
  5. Engine misfires

How to Fix P0090 2014 GMC Sierra

  1. Diagnose the specific cause of the P0090 code using a scan tool to pinpoint the issue accurately.
  2. Inspect the fuel pressure regulator and control circuit for any visible damage or signs of wear.
  3. Test the fuel pressure regulator to ensure it is functioning correctly.
  4. Replace the fuel pressure regulator if it is found to be faulty.
  5. Clear the DTC and perform a test drive to confirm that the issue has been resolved.

Cost to Fix P0090 2014 GMC Sierra

The typical repair costs for addressing a P0090 code can vary depending on the specific cause of the issue. In general, the cost of replacing a fuel pressure regulator can range from $150 to $300, including parts and labor. Additional costs may apply if there are other components that need to be replaced or if further diagnostics are required. It is advisable to consult with a qualified mechanic or auto repair shop to get a more accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates can vary based on location, vehicle make and model, and the type of engine.

Tech Notes for P0090 2014 GMC Sierra









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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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