AutoCodes – Chevrolet – P16E4 2014 Chevrolet Silverado

P16E4 2014 Chevrolet Silverado Code - Sensor Communication Circuit 3 Low Voltage

Quick Answer

The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted. 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: P16E4 2014 Chevrolet Silverado indicates Sensor Communication Circuit 3 Low Voltage.
Common causes: Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted.
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 465

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 30, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P16E4 2014 Chevrolet Silverado Description

The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. The fuel rail pressure sensor transmits fuel pressure and temperature information via serial data to the ECM. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The ECM controls the fuel pressure regulator, which regulates high-pressure fuel that goes to the fuel injector rails and the injectors. The Diagnostic Trouble Code (DTC) will be set if the Fuel Rail Pressure Sensor Signal is less than a predefined threshold for greater than 2.6 s.

OBDII Code P16E4 2014 Chevrolet Silverado - Sensor Communication Circuit 3 Low Voltage - AutoCodes.com — P16E4 2014 Chevrolet Silverado Code - Sensor Communication Circuit 3 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P16E4 2014 Chevrolet Silverado?

Low or no fuel
Faulty Fuel Rail Pressure (FRP) Sensor
Fuel Rail Pressure harness is open or shorted
Fuel Rail Pressure circuit poor electrical connection
Faulty Fuel Pump

How to Fix the DTC P16E4 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P16E4 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 P16E4 2014 Chevrolet Silverado code?

Need more information on how to fix the P16E4 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16E4 2014 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 P16E4 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P16E4 in a 2014 Chevrolet Silverado?

- Common symptoms include rough idling, decreased fuel efficiency, and potential stalling of the vehicle.

2. What does the OBDII code P16E4 mean for a 2014 Chevrolet Silverado?

- The code indicates a low voltage condition in the Sensor Communication Circuit 3 of the vehicle.

3. What are the possible causes of the Sensor Communication Circuit 3 low voltage issue in a 2014 Chevrolet Silverado?

- Potential causes include a faulty sensor, damaged wiring, poor electrical connections, or a failing engine control module (ECM).

4. How can I diagnose the Sensor Communication Circuit 3 low voltage problem in my 2014 Chevrolet Silverado?

- Use a diagnostic scanner to retrieve the trouble codes, inspect the wiring and connectors for any damage, and test the sensor and related components for proper functionality.

5. What are some repair tips for resolving OBDII code P16E4 in a 2014 Chevrolet Silverado?

- Start by checking and cleaning the electrical connectors, repairing any damaged wiring, and replacing the faulty sensor if necessary. Resetting the trouble codes and performing a test drive can help confirm the issue is resolved.

6. Can driving with OBDII code P16E4 in a 2014 Chevrolet Silverado cause further damage?

- Continued driving with this issue may lead to performance issues, increased fuel consumption, and potential damage to the engine or emissions system over time.

7. How much does it typically cost to repair OBDII code P16E4 in a 2014 Chevrolet Silverado?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $500 for parts and labor.

8. Is it safe to continue driving my 2014 Chevrolet Silverado with the Sensor Communication Circuit 3 low voltage problem?

- It is not recommended to drive the vehicle with this issue as it can lead to further complications and potential engine damage.

9. Can I reset the OBDII code P16E4 in my 2014 Chevrolet Silverado without making any repairs?

- While clearing the trouble code may temporarily turn off the check engine light, it is crucial to address the underlying cause to prevent future issues.

10. How long does it take to repair the Sensor Communication Circuit 3 low voltage problem in a 2014 Chevrolet Silverado?

- The repair time can vary depending on the exact cause and complexity of the issue, but it may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.