AutoCodes – Honda – P043F 2020 Honda CR-V

P043F 2020 Honda CR-V Code - Evaporative Emission Leak Check Module Standard Pressure High

Quick Answer

What it means: P043F 2020 Honda CR-V indicates Evaporative Emission Leak Check Module Standard Pressure High.
Common causes: Common causes include Faulty Vacuum Pump, Faulty Vacuum Pump (Motor), Faulty Control Valve.
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 206

How popular is this code, among other codes? Low

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 Dec 17, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P043F 2020 Honda CR-V Description

The Powertrain Control Module (PCM) starts the Evaporative Emission (EVAP) system diagnosis after the vehicle has been turned to the OFF (LOCK) mode and has met all other enable conditions (initial engine coolant temperature [ECT SENSOR 1] and off for at least 5 hours). The EVAP system diagnosis is performed by reducing the pressure between the EVAP canister and the atmosphere. If pressure is reduced with the fuel vapor containment valve open, the entire EVAP system will be diagnosed, and if the fuel vapor containment valve is closed, only the EVAP canister side will be diagnosed.
A malfunction is detected, and a Diagnostic Trouble Code (DTC) is stored when changes in the pressure are equal to or more than the prescribed value after the prescribed time of starting the system pressure reduction.

OBDII Code P043F 2020 Honda CR-V - Evaporative Emission Leak Check Module Standard Pressure High - AutoCodes.com — P043F 2020 Honda CR-V Code - Evaporative Emission Leak Check Module Standard Pressure High

What does this mean?

What are the Possible Causes of the DTC P043F 2020 Honda CR-V?

Faulty Vacuum Pump
Faulty Vacuum Pump (Motor)
Faulty Control Valve
Reference orifice flow quantity is excessive
Reference orifice flow quantity is too low

How to Fix the DTC P043F 2020 Honda CR-V?

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 P043F 2020 Honda CR-V 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 P043F 2020 Honda CR-V code?

Need more information on how to fix the P043F 2020 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P043F 2020 Honda CR-V code diagnosed by a professional: Find a repair shop in your area

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 P043F 2020 Honda CR-V Code

1. What does the OBDII code P043F mean for a 2020 Honda CR-V?

The P043F code indicates that the Evaporative Emission Leak Check Module has detected higher-than-expected pressure during its standard operation.

2. What are the symptoms of the P043F code in a 2020 Honda CR-V?

Common symptoms include an illuminated check engine light, possible fuel odor near the vehicle, and in rare cases, decreased fuel efficiency.

3. What causes the P043F code in a 2020 Honda CR-V?

The most common causes are a faulty Evaporative Leak Check Module, damaged or blocked EVAP system hoses, or a malfunctioning purge or vent valve.

4. Can I drive my 2020 Honda CR-V with the P043F code?

Yes, the vehicle is typically drivable, but ignoring the issue can lead to increased emissions and potential damage to the EVAP system over time.

5. How is the P043F code diagnosed?

A technician will use a scan tool to confirm the code, inspect the EVAP system components, and check for leaks, blockages, or faulty sensors.

6. How do you fix the P043F code in a 2020 Honda CR-V?

Repairs may include replacing the Evaporative Leak Check Module, clearing blockages in EVAP hoses, or replacing a faulty purge or vent valve.

7. How much does it cost to fix the P043F code in a 2020 Honda CR-V?

Repair costs typically range from $150 to $500, depending on whether the issue is a simple hose repair or module replacement.

8. Can a loose gas cap cause the P043F code?

No, a loose gas cap is more likely to trigger a different EVAP code, such as P0455 or P0442, but it is still worth checking.

9. Will clearing the code fix the P043F issue permanently?

Clearing the code with a scan tool will temporarily turn off the check engine light, but the issue will return if the underlying problem is not resolved.

10. What preventive maintenance can help avoid the P043F code?

Regularly inspect and maintain EVAP system components, avoid overfilling the gas tank, and address any fuel system issues promptly.