AutoCodes – Chevrolet – P00C8 2017 Chevrolet Silverado

P00C8 2017 Chevrolet Silverado Code - Fuel Pressure Regulator High 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: P00C8 2017 Chevrolet Silverado indicates Fuel Pressure Regulator High 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 506

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 P00C8 2017 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 high control circuit.

OBDII Code P00C8 2017 Chevrolet Silverado - Fuel Pressure Regulator High Control Circuit - AutoCodes.com — P00C8 2017 Chevrolet Silverado Code - Fuel Pressure Regulator High Control Circuit

What does this mean?

What are the Possible Causes of the DTC P00C8 2017 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 P00C8 2017 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 P00C8 2017 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 P00C8 2017 Chevrolet Silverado code?

Need more information on how to fix the P00C8 2017 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 P00C8 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P00C8 on a 2017 Chevrolet Silverado?

- Common symptoms include a check engine light, decreased fuel efficiency, rough idling, and potential difficulty starting the vehicle.

2. What does the OBDII code P00C8 on a 2017 Chevrolet Silverado indicate?

- The code P00C8 indicates an issue with the Fuel Pressure Regulator High Control Circuit in the vehicle's fuel system.

3. What are the possible causes of OBDII code P00C8 on a 2017 Chevrolet Silverado?

- Possible causes include a faulty fuel pressure regulator, wiring issues in the control circuit, a damaged fuel pressure sensor, or a problem with the engine control module.

4. How serious is OBDII code P00C8 on a 2017 Chevrolet Silverado?

- While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential fuel system issues and ensure optimal engine performance.

5. How can I diagnose the OBDII code P00C8 on a 2017 Chevrolet Silverado?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the fuel pressure regulator, checking the wiring and connections in the control circuit, and testing the fuel pressure sensor.

6. Can I drive my 2017 Chevrolet Silverado with OBDII code P00C8?

- It is generally not recommended to drive the vehicle with this code present, as it can lead to poor fuel economy, engine performance issues, and potentially more severe problems if left unresolved.

7. What are some repair tips for addressing OBDII code P00C8 on a 2017 Chevrolet Silverado?

- Repair tips may include replacing the fuel pressure regulator, repairing or replacing damaged wiring, checking and replacing the fuel pressure sensor, and resetting the engine control module.

8. How much does it typically cost to repair OBDII code P00C8 on a 2017 Chevrolet Silverado?

- Repair costs can vary depending on the specific issue causing the code, but they may range from $200 to $600 or more, including parts and labor.

9. Can OBDII code P00C8 on a 2017 Chevrolet Silverado cause other problems if not fixed?

- If left unresolved, this code can potentially lead to reduced fuel efficiency, engine misfires, rough running conditions, and damage to other components in the fuel system.

10. How long does it take to repair OBDII code P00C8 on a 2017 Chevrolet Silverado?

- The repair time can vary based on the exact cause of the issue, but it might take anywhere from 1 to 3 hours or more to diagnose and fix the problem with the fuel pressure regulator high control circuit.