AutoCodes – GMC – P163A 2014 GMC Sierra

P163A 2014 GMC Sierra Code - Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance

Quick Answer

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM) or an out-of-range high-pressure fuel pump actuator current. Common causes include Faulty High Pressure Fuel Pump, High Pressure Fuel Pump harness is open or shorted, High Pressure Fuel Pump circuit poor electrical 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
P163A 2014 GMC Sierra indicates Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance.
Common causes
Common causes include Faulty High Pressure Fuel Pump, High Pressure Fuel Pump harness is open or shorted, High Pressure Fuel Pump circuit poor electrical 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 227
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 17, 2022
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Code P163A 2014 GMC Sierra Description

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM) or an out-of-range high-pressure fuel pump actuator current. The Diagnostic Trouble Code (DTC) will be set if the ECM detects a condition with the integrated circuits of the High-Pressure Fuel Pump actuator driver module or if the ECM detects that the current used to drive the High-Pressure Fuel Pump actuator is out of range for greater than 4 s.
OBDII Code P163A 2014 GMC Sierra - Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance - AutoCodes.com
P163A 2014 GMC Sierra Code - Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance

What are the Possible Causes of the DTC P163A 2014 GMC Sierra?

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

How to Fix the DTC P163A 2014 GMC Sierra?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P163A 2014 GMC Sierra 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 P163A 2014 GMC Sierra code?

Need more information on how to fix the P163A 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P163A 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P163A 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P163A in a 2014 GMC Sierra related to the Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance?

- Common symptoms include rough idling, poor engine performance, decreased fuel efficiency, and the illumination of the Check Engine light.

2. What are the possible causes of OBDII code P163A in a 2014 GMC Sierra?

- Possible causes may include a faulty fuel pressure regulator, issues with the control module, wiring or connector problems, or a defective fuel pump.

3. How can I diagnose the Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance issue in my 2014 GMC Sierra?

- Diagnosis typically involves using an OBDII scanner to retrieve the trouble code, performing a visual inspection of the fuel pressure regulator and related components, and checking the wiring and connectors for any visible damage.

4. Can I continue driving my 2014 GMC Sierra with OBDII code P163A present?

- It is not recommended to drive your vehicle with this code present, as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.

5. What are some repair tips for fixing OBDII code P163A in a 2014 GMC Sierra?

- Repair tips may include checking and replacing the fuel pressure regulator, inspecting and repairing any damaged wiring or connectors, and resetting the trouble code with an OBDII scanner after completing the repairs.

6. How much does it typically cost to repair OBDII code P163A in a 2014 GMC Sierra?

- The cost of repairs can vary depending on the specific issue causing the code, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can I reset the Check Engine light after repairing OBDII code P163A in my 2014 GMC Sierra?

- Yes, you can reset the Check Engine light using an OBDII scanner after addressing the underlying issue causing the code. If the problem is fixed, the light should stay off.

8. Are there any common related codes that may accompany P163A in a 2014 GMC Sierra?

- Other related codes that may appear alongside P163A include P1639 (Fuel Level Sensor 1 Performance) or P1644 (Fuel Level Sensor 1 Circuit).

9. What should I do if I'm unable to diagnose or repair OBDII code P163A in my 2014 GMC Sierra?

- If you're unable to diagnose or repair the issue yourself, it's recommended to seek assistance from a qualified mechanic or dealership who can conduct a thorough inspection and make the necessary repairs.

10. How can I prevent OBDII code P163A from reoccurring in my 2014 GMC Sierra?

- Regular maintenance, such as fuel system inspections, timely repairs of any related issues, and using high-quality fuel, can help prevent the recurrence of OBDII code P163A in your GMC Sierra.

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