AutoCodes – Chevrolet – P0454 2018 Chevrolet Silverado

P0454 2018 Chevrolet Silverado Code - Fuel Tank Pressure Sensor Circuit Intermittent

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: P0454 2018 Chevrolet Silverado indicates Fuel Tank Pressure Sensor Circuit Intermittent.
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.

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Code Popularity 2,483

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 12, 2024

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0454 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 during the engine-off natural vacuum small leak test, P0442, the ECM detects an abrupt fuel tank pressure signal change, other than a refueling event. An abrupt change is defined as a change of greater than 0.45 in H2O in the span of 1 s but less than 1 in H2O in 12.5 ms.

OBDII Code P0454 2018 Chevrolet Silverado - Fuel Tank Pressure Sensor Circuit Intermittent - AutoCodes.com — P0454 2018 Chevrolet Silverado Code - Fuel Tank Pressure Sensor Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0454 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 P0454 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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0454 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 P0454 2018 Chevrolet Silverado code?

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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 P0454 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0454 in a 2018 Chevrolet Silverado?

The common symptoms of OBDII code P0454 in a 2018 Chevrolet Silverado include the check engine light coming on, issues with fuel efficiency, and potential difficulties during refueling.

2. What does the OBDII code P0454 on a 2018 Chevrolet Silverado indicate?

The OBDII code P0454 on a 2018 Chevrolet Silverado indicates a problem with the Fuel Tank Pressure Sensor Circuit Intermittent.

3. What are the potential causes of OBDII code P0454 in a 2018 Chevrolet Silverado?

Potential causes of OBDII code P0454 in a 2018 Chevrolet Silverado include a faulty fuel tank pressure sensor, damaged wiring or connectors in the sensor circuit, or issues with the fuel tank pressure sensor module.

4. How can I diagnose the OBDII code P0454 in my 2018 Chevrolet Silverado?

To diagnose the OBDII code P0454 in a 2018 Chevrolet Silverado, you can use an OBDII scanner to retrieve the trouble codes, inspect the fuel tank pressure sensor and its wiring for damage, and test the sensor's functionality using a multimeter.

5. Can I continue driving my 2018 Chevrolet Silverado with OBDII code P0454?

While it may be possible to continue driving your 2018 Chevrolet Silverado with OBDII code P0454, it is recommended to address the issue promptly to prevent potential damage to the vehicle's emissions system.

6. How can I repair OBDII code P0454 in my 2018 Chevrolet Silverado?

Repairing OBDII code P0454 in a 2018 Chevrolet Silverado may involve replacing the fuel tank pressure sensor, repairing or replacing damaged wiring or connectors, or resetting the trouble code with an OBDII scanner after addressing the underlying issue.

7. Is it possible to reset the OBDII code P0454 in a 2018 Chevrolet Silverado without fixing the underlying issue?

While you can technically reset the OBDII code P0454 in a 2018 Chevrolet Silverado without fixing the underlying issue, the check engine light is likely to reappear if the root cause is not addressed.

8. How much does it typically cost to repair OBDII code P0454 in a 2018 Chevrolet Silverado?

The cost to repair OBDII code P0454 in a 2018 Chevrolet Silverado can vary depending on the specific issue causing the code, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P0454 in a 2018 Chevrolet Silverado?

A DIY enthusiast with the necessary tools and skills may be able to fix OBDII code P0454 in a 2018 Chevrolet Silverado by following repair guides or tutorials, especially for tasks like sensor replacement or wiring repairs.

10. How important is it to address OBDII code P0454 in a 2018 Chevrolet Silverado promptly?

It is important to address OBDII code P0454 in a 2018 Chevrolet Silverado promptly to ensure proper vehicle operation, prevent potential emissions system damage, and maintain overall vehicle performance and fuel efficiency.