AutoCodes – Lincoln – P0454 Lincoln

P0454 Lincoln Code - EVAP Pressure Sensor/Switch Intermitten

Quick Answer

The Evaporative Emission System (EVAP) control system pressure sensor detects pressure in the purge line. Common causes include Faulty Evaporative Emission System (EVAP) Pressure sensor, Evaporative Emission System Pressure sensor harness is open or shorted, Evaporative Emission System 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 Lincoln indicates EVAP Pressure Sensor/Switch Intermitten.
Common causes: Common causes include Faulty Evaporative Emission System (EVAP) Pressure sensor, Evaporative Emission System Pressure sensor harness is open or shorted, Evaporative Emission System 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 720

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 Jul 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0454 Lincoln Description

The Evaporative Emission System (EVAP) control system pressure sensor detects pressure in the purge line. The sensor output voltage to the Powertrain Control Module (PCM) increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for onboard diagnosis. The Diagnostic Trouble Code (DTC) will set when an intermittent voltage from the sensor is sent to the Powertrain Control Module.

OBDII Code P0454 Lincoln - EVAP Pressure Sensor/Switch Intermitten - AutoCodes.com — P0454 Lincoln Code - EVAP Pressure Sensor/Switch Intermitten

What does this mean?

What are the Possible Causes of the DTC P0454 Lincoln?

Faulty Evaporative Emission System (EVAP) Pressure sensor
Evaporative Emission System Pressure sensor harness is open or shorted
Evaporative Emission System Pressure sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0454 Lincoln?

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 P0454 Lincoln 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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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.