AutoCodes – Chevrolet – P0090 2014 Chevrolet Silverado

P0090 2014 Chevrolet Silverado Code - Fuel Pressure Regulator Control Circuit

Quick Answer

High-pressure fuel is regulated by the high-pressure fuel pump actuator, which is a part of the High-Pressure Fuel Pump. Common causes include Faulty High-Pressure Fuel Pump, High-Pressure Fuel Pump harness is open or shorted, High-Pressure Fuel Pump electrical circuit poor connection. 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 Chevrolet Silverado indicates Fuel Pressure Regulator Control Circuit.
Common causes: Common causes include Faulty High-Pressure Fuel Pump, High-Pressure Fuel Pump harness is open or shorted, High-Pressure Fuel Pump electrical circuit poor connection.
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.

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Code Popularity 1,405

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 16, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0090 2014 Chevrolet Silverado Description

High-pressure fuel is regulated by the high-pressure fuel pump actuator, which is a part of the High-Pressure Fuel Pump. The high-pressure fuel pump actuator is a solenoid valve. The Engine Control Module (ECM) provides battery voltage on the actuator high control circuit and ground on the actuator low control circuit. Both circuits are controlled through output drivers within the ECM. When deactivated, both drivers are disabled. When activated, the high control circuit driver energizes the high-pressure fuel pump actuator, and the low control circuit driver Pulse-Width Modulates (PWM) the low control circuit to the ground. The ECM monitors the voltage on the circuits to detect a failure. The Diagnostic Trouble Code (DTC) will set if the ECM detects an open circuit in the high-pressure fuel pump actuator low control circuit.

OBDII Code P0090 2014 Chevrolet Silverado - Fuel Pressure Regulator Control Circuit - AutoCodes.com — P0090 2014 Chevrolet Silverado Code - Fuel Pressure Regulator Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0090 2014 Chevrolet Silverado?

Faulty High-Pressure Fuel Pump
High-Pressure Fuel Pump harness is open or shorted
High-Pressure Fuel Pump electrical circuit poor connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0090 2014 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0090 2014 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0090 2014 Chevrolet Silverado code?

Need more information on how to fix the P0090 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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.

Frequently Asked Questions about P0090 2014 Chevrolet Silverado Code

1. What does the OBDII code P0090 on a 2014 Chevrolet Silverado indicate?

- The code P0090 indicates a fault in the Fuel Pressure Regulator Control Circuit.

2. What are the common symptoms of a P0090 code in a 2014 Chevrolet Silverado?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and difficulty starting the vehicle.

3. What are the possible causes of the P0090 code in a 2014 Chevrolet Silverado?

- Possible causes include a faulty fuel pressure regulator, issues with the fuel pump, wiring problems in the control circuit, or a failed fuel pressure sensor.

4. How can I diagnose the P0090 code in a 2014 Chevrolet Silverado?

- Diagnosing the P0090 code typically involves using a scan tool to read the code, checking the fuel pressure regulator and sensor for proper function, and inspecting the wiring for any damage or loose connections.

5. Can I still drive my 2014 Chevrolet Silverado with a P0090 code?

- It is not recommended to drive the vehicle with a P0090 code, as it can lead to poor engine performance and potential damage if left unresolved.

6. How can I repair a P0090 code in my 2014 Chevrolet Silverado?

- Repair options may include replacing the fuel pressure regulator, repairing or replacing damaged wiring, checking and possibly replacing the fuel pump, or addressing any other identified issues causing the fault.

7. Will resetting the OBDII system clear the P0090 code on a 2014 Chevrolet Silverado?

- Resetting the system may temporarily clear the code, but if the underlying issue causing the P0090 code is not addressed, the code is likely to reappear.

8. Is it safe to continue driving if the P0090 code in a 2014 Chevrolet Silverado goes away on its own?

- It is not recommended to ignore the P0090 code even if it goes away temporarily, as it indicates a potential issue that needs to be addressed to ensure proper vehicle operation.

9. How much does it typically cost to repair a P0090 code in a 2014 Chevrolet Silverado?

- The cost of repairing a P0090 code can vary depending on the underlying cause and the specific repairs needed. It is advisable to consult a professional mechanic for an accurate diagnosis and cost estimate.

10. Can a DIY enthusiast fix the P0090 code in a 2014 Chevrolet Silverado?

- While some simple repairs like checking and securing wiring connections can be done by a DIY enthusiast, diagnosing and repairing more complex issues related to the P0090 code may require professional expertise and specialized tools.