AutoCodesChevrolet – P0452 2018 Chevrolet Silverado

P0452 2018 Chevrolet Silverado Code - Fuel Tank Pressure Sensor Circuit Low Voltage

Quick Answer

The fuel tank pressure sensor measures vapor pressure or vacuum in the Evaporative Emission (EVAP) system. Common causes include Faulty Fuel Tank Pressure (FTP) Sensor, Fuel Tank Pressure Sensor harness is open or shorted, Fuel Tank Pressure Sensor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0452 2018 Chevrolet Silverado indicates Fuel Tank Pressure Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty Fuel Tank Pressure (FTP) Sensor, Fuel Tank Pressure Sensor harness is open or shorted, Fuel Tank Pressure Sensor circuit poor electrical connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 876
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 12, 2024
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0452 2018 Chevrolet Silverado Description

The fuel tank pressure sensor measures vapor pressure or vacuum in the Evaporative Emission (EVAP) system. The Engine Control Module (ECM) supplies a 5 V reference and a low reference circuit to the fuel tank pressure sensor. The fuel tank pressure sensor signal voltage varies depending on EVAP system pressure or vacuum. The control module also uses this fuel tank pressure signal to determine atmospheric pressure for use in the engine-off small leak test, DTC P0442. Before using this signal as an atmospheric reference, it must first be re-zeroed. The Diagnostic Trouble Code (DTC) will be set if the fuel tank pressure sensor voltage is less than 0.15 V for greater than 10 s.
OBDII Code P0452 2018 Chevrolet Silverado - Fuel Tank Pressure Sensor Circuit Low Voltage - AutoCodes.com
P0452 2018 Chevrolet Silverado Code - Fuel Tank Pressure Sensor Circuit Low Voltage

What are the Possible Causes of the DTC P0452 2018 Chevrolet Silverado?

  • Faulty Fuel Tank Pressure (FTP) Sensor
  • Fuel Tank Pressure Sensor harness is open or shorted
  • Fuel Tank Pressure Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0452 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0452 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 P0452 2018 Chevrolet Silverado code?

Need more information on how to fix the P0452 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0452 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 P0452 2018 Chevrolet Silverado Code

1. What does code P0452 mean on a 2018 Chevrolet Silverado?

Code P0452 indicates "Fuel Tank Pressure Sensor Circuit Low Voltage," meaning the fuel tank pressure sensor is reporting a voltage below the expected range.

2. What are the symptoms of code P0452 on a 2018 Chevrolet Silverado?

Common symptoms include an illuminated check engine light, reduced fuel efficiency, difficulty refueling, or a faint fuel odor near the vehicle.

3. What causes code P0452 on a 2018 Chevrolet Silverado?

Possible causes include a faulty fuel tank pressure sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's EVAP system.

4. Can a loose gas cap cause code P0452 on a 2018 Chevrolet Silverado?

While a loose gas cap is unlikely to directly trigger P0452, it can cause EVAP system issues. Always check the gas cap first when dealing with EVAP-related codes.

5. How do you fix code P0452 on a 2018 Chevrolet Silverado?

Repairs may include replacing the fuel tank pressure sensor, repairing or replacing damaged wiring or connectors, or addressing other EVAP system faults.

6. Is it safe to drive a 2018 Chevrolet Silverado with code P0452?

Yes, it is usually safe to drive with code P0452, but it may lead to reduced fuel efficiency or other EVAP-related issues if not addressed promptly.

7. How much does it cost to fix code P0452 on a 2018 Chevrolet Silverado?

The repair cost varies, but replacing a fuel tank pressure sensor typically ranges from $150 to $300, including parts and labor.

8. How do you diagnose code P0452 on a 2018 Chevrolet Silverado?

Diagnosis involves using a scan tool to monitor sensor data, visually inspecting wiring and connectors, and testing the fuel tank pressure sensor with a multimeter.

9. Can bad weather or temperature changes trigger code P0452 on a 2018 Chevrolet Silverado?

Extreme weather or temperature changes can occasionally affect EVAP system performance, but they are not common causes of P0452.

10. Will clearing the code P0452 fix the issue on a 2018 Chevrolet Silverado?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be fixed to prevent the code from returning.

Discuss the causes and fixes for P0452 2018 Chevrolet Silverado OBDII Code

Code P0452 2018 Chevrolet Silverado comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play