AutoCodes – Chevrolet – P163A 2018 Chevrolet Silverado

P163A 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 458

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 Aug 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P163A 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance - AutoCodes.com — P163A 2018 Chevrolet Silverado Code - Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance

What does this mean?

What are the Possible Causes of the DTC P163A 2018 Chevrolet Silverado?

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 2018 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P163A 2018 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 P163A 2018 Chevrolet Silverado code?

Need more information on how to fix the P163A 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P163A 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code

What does the OBDII code P163A mean on a 2018 Chevrolet Silverado?

The P163A code indicates an issue with the Control Module Fuel Pressure Regulator 1 Control System Circuitry Performance, meaning the system is not functioning as expected.

What are the common symptoms of the P163A code in a Chevrolet Silverado?

Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, difficulty starting the engine, or an illuminated check engine light.

What causes the P163A code to appear?

Common causes include a faulty fuel pressure regulator, damaged or corroded wiring, loose electrical connections, or a malfunctioning control module.

Can driving with the P163A code damage my Silverado?

While the vehicle may still run, driving with this code can lead to reduced performance and could potentially cause further damage to the fuel system or engine if left unaddressed.

How do I diagnose the P163A code on my 2018 Silverado?

Start by using an OBDII scanner to confirm the code. Then inspect the wiring and connectors related to the fuel pressure regulator, and test the regulator and control module for proper function.

Is the P163A code specific to the Chevrolet Silverado?

No, this code can appear on other vehicles, but the troubleshooting process and affected systems may vary depending on the make and model.

How do I fix the P163A code on a 2018 Chevrolet Silverado?

Repairs may involve replacing the fuel pressure regulator, repairing damaged wiring, securing loose connections, or reprogramming or replacing the control module if necessary.

How much does it cost to repair the P163A code?

Repair costs can vary widely but typically range from $150 to $500 depending on whether parts like the fuel pressure regulator or control module need replacement.

Can a dirty fuel filter cause the P163A code?

While a dirty fuel filter is unlikely to directly trigger the P163A code, it can cause fuel pressure issues that might contribute to related performance problems.

Do I need to reset the check engine light after fixing the P163A code?

Yes, after completing the repairs, use an OBDII scanner to clear the code and reset the check engine light. Drive the vehicle to ensure the issue is resolved.