AutoCodes – Chevrolet – P00C8 2016 Chevrolet Silverado

P00C8 2016 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 2016 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 543

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 P00C8 2016 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 2016 Chevrolet Silverado - Fuel Pressure Regulator High Control Circuit - AutoCodes.com — P00C8 2016 Chevrolet Silverado Code - Fuel Pressure Regulator High Control Circuit

What does this mean?

What are the Possible Causes of the DTC P00C8 2016 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 2016 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 2016 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 2016 Chevrolet Silverado code?

Need more information on how to fix the P00C8 2016 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 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P00C8 in a 2016 Chevrolet Silverado?

The common symptoms of code P00C8 include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling of the vehicle.

2. What does the OBDII code P00C8 indicate in a 2016 Chevrolet Silverado?

The code P00C8 on a 2016 Chevrolet Silverado indicates an issue with the Fuel Pressure Regulator High Control Circuit.

3. What are the possible causes of OBDII code P00C8 in a 2016 Chevrolet Silverado?

Possible causes of code P00C8 in a 2016 Chevrolet Silverado include a faulty fuel pressure regulator, wiring issues in the control circuit, or a malfunctioning engine control module.

4. How can I diagnose the OBDII code P00C8 in my 2016 Chevrolet Silverado?

Diagnosing code P00C8 may involve using an OBDII scanner to retrieve the code, checking the fuel pressure regulator for proper operation, inspecting the wiring for any damage, and testing the control circuit components.

5. Can I drive my 2016 Chevrolet Silverado with OBDII code P00C8?

It is not recommended to drive your vehicle with code P00C8 as it can lead to potential engine damage or safety issues. It is advisable to address the issue promptly.

6. How do I repair OBDII code P00C8 in a 2016 Chevrolet Silverado?

Repairing code P00C8 may involve replacing the fuel pressure regulator, repairing or replacing damaged wiring, or reprogramming the engine control module as necessary.

7. Is it possible to reset OBDII code P00C8 in a 2016 Chevrolet Silverado?

While you can clear the code using an OBDII scanner, it is important to address the underlying issue causing code P00C8 to prevent it from reoccurring.

8. Can a DIY enthusiast fix OBDII code P00C8 in a 2016 Chevrolet Silverado?

Depending on your skill level and access to tools, DIY enthusiasts may be able to address code P00C8 by following repair guides and tutorials. However, complex issues may require professional assistance.

9. Will OBDII code P00C8 cause my 2016 Chevrolet Silverado to fail an emissions test?

Yes, code P00C8 can cause your 2016 Chevrolet Silverado to fail an emissions test due to its impact on fuel regulation and engine performance.

10. How much does it typically cost to repair OBDII code P00C8 in a 2016 Chevrolet Silverado?

The cost of repairing code P00C8 can vary depending on the underlying issue, parts needed, and labor rates. It is recommended to get a diagnosis from a mechanic to determine the specific cost for your situation.