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P145D 2018 Honda CR-V Code - Evaporative Emission System Purge Flow Malfunction at Turbocharging

Quick Answer

The P145D code indicates a malfunction in the evaporative emission control system (EVAP) related to the purge flow, particularly in vehicles equipped with turbocharging. Common causes include Faulty Purge Valve: A malfunctioning purge valve can fail to open or close properly, disrupting the flow of vapors, Clogged Vapor Lines: Blockages in the vapor lines can prevent the proper movement of fuel vapors from the canister to the intake manifold, Defective EVAP Canister: Damage or deterioration of the EVAP canister itself can lead to leaks or improper vapor storage. 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
P145D 2018 Honda CR-V indicates Evaporative Emission System Purge Flow Malfunction at Turbocharging.
Common causes
Common causes include Faulty Purge Valve: A malfunctioning purge valve can fail to open or close properly, disrupting the flow of vapors, Clogged Vapor Lines: Blockages in the vapor lines can prevent the proper movement of fuel vapors from the canister to the intake manifold, Defective EVAP Canister: Damage or deterioration of the EVAP canister itself can lead to leaks or improper vapor storage.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 02, 2025
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Code P145D 2018 Honda CR-V Description

The P145D code indicates a malfunction in the evaporative emission control system (EVAP) related to the purge flow, particularly in vehicles equipped with turbocharging. The EVAP system is designed to capture and store fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. When the engine is running, the system purges these stored vapors into the intake manifold to be burned during combustion. A malfunction in this system can lead to increased emissions and reduced engine efficiency.
OBDII Code P145D 2018 Honda CR-V - Evaporative Emission System Purge Flow Malfunction at Turbocharging
P145D 2018 Honda CR-V Code - Evaporative Emission System Purge Flow Malfunction at Turbocharging

Common Causes of P145D 2018 Honda CR-V

  1. Faulty Purge Valve: A malfunctioning purge valve can fail to open or close properly, disrupting the flow of vapors.
  2. Clogged Vapor Lines: Blockages in the vapor lines can prevent the proper movement of fuel vapors from the canister to the intake manifold.
  3. Defective EVAP Canister: Damage or deterioration of the EVAP canister itself can lead to leaks or improper vapor storage.
  4. Turbocharger Issues: Problems with the turbocharger, such as boost leaks or pressure imbalances, can affect the vacuum necessary for the EVAP system to function correctly.
  5. Electrical Issues: Wiring problems or faulty sensors related to the EVAP system can trigger the P145D code.

Symptoms of P145D 2018 Honda CR-V

  1. Check Engine Light: The most common symptom is the illumination of the check engine light on the dashboard, indicating a fault in the EVAP system.
  2. Poor Fuel Economy: Drivers may notice a decrease in fuel efficiency due to improper combustion caused by vapor flow issues.
  3. Rough Idling: The engine may exhibit rough idling or stalling, especially during acceleration or deceleration.
  4. Increased Emissions: The vehicle may produce higher levels of harmful emissions, potentially leading to failed emissions tests.
  5. Strong Fuel Odor: A noticeable smell of gasoline may be present, indicating fuel vapor leaks in the EVAP system.

How to Fix P145D 2018 Honda CR-V

  1. Diagnostic Scan: Begin with a thorough diagnostic scan to confirm the P145D code and check for any related codes that may provide additional context.
  2. Inspect Purge Valve: Examine the purge valve for proper operation. If it is faulty, replace it with a new component.
  3. Check Vapor Lines: Inspect all vapor lines for clogs, cracks, or leaks. Clean or replace any damaged lines as necessary.
  4. Examine the EVAP Canister: Assess the condition of the EVAP canister for any signs of damage or leaks. Replace it if necessary.
  5. Test Turbocharger Functionality: Ensure the turbocharger is functioning correctly and that there are no leaks affecting the vacuum needed for the EVAP system.

Cost to Fix P145D 2018 Honda CR-V

The typical repair costs for addressing a P145D code can vary significantly based on the specific issue identified during diagnostics. On average, repairs may range from $150 to $600, depending on whether parts need to be replaced (such as the purge valve or EVAP canister) and the labor involved. Labor rates can vary widely; most auto repair shops charge between $80 and $150 per hour. In metropolitan areas or at dealerships, rates may be higher, while independent shops may offer lower rates. It is advisable to check local rates and obtain estimates from multiple shops for a more precise cost assessment.

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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.

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