AutoCodes – Chevrolet – P0453 Chevrolet

P0453 Chevrolet Code - Fuel Tank Pressure Sensor Circuit High 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 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: P0453 Chevrolet indicates Fuel Tank Pressure Sensor Circuit High 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: 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 45,130

How popular is this code, among other codes? Medium

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 Jun 28, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
Comments
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Code P0453 Chevrolet 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 more than 4.85 V for greater than 10 s.

OBDII Code P0453 Chevrolet - Fuel Tank Pressure Sensor Circuit High Voltage - AutoCodes.com — P0453 Chevrolet Code - Fuel Tank Pressure Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0453 Chevrolet?

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 P0453 Chevrolet?

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

On most Chevrolet vehicles the sensor is on top of the fuel tank.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0453 Chevrolet 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.

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Information for Specific Chevrolet Models

P0453 2014 Chevrolet Silverado — Fuel Tank Pressure Sensor Circuit High Voltage
P0453 2015 Chevrolet Silverado — Fuel Tank Pressure Sensor Circuit High Voltage
P0453 2016 Chevrolet Silverado — Fuel Tank Pressure Sensor Circuit High Voltage
P0453 2017 Chevrolet Silverado — Fuel Tank Pressure Sensor Circuit High Voltage
P0453 2018 Chevrolet Silverado — Fuel Tank Pressure Sensor Circuit High Voltage

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.