AutoCodesGeneric – P14A4

P14A4 Code - EVAP Purge Pump High Temperature

Quick Answer

Purge capacity is being reduced by technologies that improve fuel economy. Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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
P14A4 indicates EVAP Purge Pump High Temperature.
Common causes
Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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 4,532
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 18, 2023
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Code P14A4 Description

Purge capacity is being reduced by technologies that improve fuel economy. The Evaporative Emission Purge Pump is used to purge stored vapors from the Evaporative Emission Canister and is required to increase the purge volumes to meet LEV 3 Evaporative Emission requirements. The Evaporative Emission Purge Pump has an integral pressure sensor for controlling purge vapors from the canister. The Engine Control Module (ECM) monitors the Evaporative Emission Purge Pump, the Diagnostic Trouble Code (DTC) will be set when the EVAP Purge Pump Temperature is greater than a predefined threshold for greater than 8 s.
OBDII Code P14A4 - EVAP Purge Pump High Temperature - AutoCodes.com
P14A4 Code - EVAP Purge Pump High Temperature

What are the Possible Causes of the DTC P14A4?

  • Faulty Evaporative Emission Purge Pump
  • Evaporative Emission Purge Pump harness is open or shorted
  • Evaporative Emission Purge Pump circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P14A4?

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 P14A4 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 P14A4 code?

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Information for Specific Makes

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 P14A4 Code

What does OBDII code P14A4 mean?

OBDII code P14A4 indicates that the EVAP purge pump has detected a high temperature, which can affect the vehicle's evaporative emissions control system.

What are the common symptoms of the P14A4 code?

Common symptoms include a check engine light, poor fuel economy, increased emissions, and potential difficulty starting the engine.

What could cause the P14A4 code to trigger?

Possible causes include a malfunctioning EVAP purge pump, electrical issues such as short circuits or open circuits, or excessive heat in the engine compartment affecting the pump.

How can I diagnose the P14A4 code?

To diagnose the P14A4 code, inspect the EVAP purge pump for damage, check the electrical connections for corrosion or loose wires, and test the pump’s operation with a multimeter.

Can I drive my car with the P14A4 code?

While you can technically drive with the P14A4 code, it is not recommended, as it may lead to further emissions problems and could affect vehicle performance.

What repairs are commonly needed for the P14A4 code?

Common repairs may include replacing the EVAP purge pump, repairing wiring or connectors, or addressing any underlying issues causing excessive heat in the engine compartment.

Is there a risk of damaging my vehicle if I ignore the P14A4 code?

Yes, ignoring the P14A4 code can lead to more severe issues with the EVAP system, increased emissions, and potential engine performance problems over time.

How can I clear the P14A4 code after repairs?

You can clear the P14A4 code using an OBDII scanner to erase the code from the vehicle's computer after completing the necessary repairs.

Will the P14A4 code affect my vehicle's emissions test?

Yes, the P14A4 code can cause your vehicle to fail an emissions test due to the malfunction in the evaporative emissions control system.

Discuss the causes and fixes for P14A4 OBDII Code

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