AutoCodesToyota – P0455 2010 Toyota Camry

P0455 2010 Toyota Camry Code - EVAP System Gross Leak Detected

Quick Answer

This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. 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
P0455 2010 Toyota Camry indicates EVAP System Gross Leak Detected.
Common causes
Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
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 7,223
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0455 2010 Toyota Camry Description

This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
5 hours* after the ignition switch is turned OFF, the leak detection pump creates negative pressure (vacuum) in the EVAP system. The ECM monitors for leaks and actuator malfunctions based on the EVAP pressure.
OBDII Code P0455 2010 Toyota Camry - EVAP System Gross Leak Detected - AutoCodes.com
P0455 2010 Toyota Camry Code - EVAP System Gross Leak Detected

What are the Possible Causes of the DTC P0455 2010 Toyota Camry?

  • Missing or loose fuel cap
  • Incorrect fuel filler cap used
  • Fuel filler cap remains open or fails to close
  • Foreign matter caught in fuel filler cap
  • EVAP canister or fuel tank leaks
  • EVAP system hose leaking
  • Fuel tank leaking

How to Fix the DTC P0455 2010 Toyota Camry?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0455 2010 Toyota Camry 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 P0455 2010 Toyota Camry code?

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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.

Frequently Asked Questions about P0455 2010 Toyota Camry Code

1. What does the OBDII code P0455 mean for a 2010 Toyota Camry?

P0455 indicates a "Gross Leak" in the EVAP (Evaporative Emission Control) system, meaning the system has detected a large leak or disconnection.

2. What are the common symptoms of P0455 in a 2010 Toyota Camry?

Symptoms may include the check engine light turning on, a noticeable fuel odor, and potentially reduced fuel efficiency, although the car may run normally.

3. What causes the P0455 code on a 2010 Toyota Camry?

Common causes include a loose or damaged gas cap, a cracked or disconnected EVAP hose, a leaking charcoal canister, or a faulty purge or vent valve.

4. Can a loose gas cap trigger the P0455 code?

Yes, a loose, missing, or damaged gas cap is one of the most common reasons for the P0455 code.

5. How can I fix the P0455 code on my 2010 Toyota Camry?

Start by tightening or replacing the gas cap. If the code persists, inspect EVAP system hoses and components for leaks or damage, and replace faulty parts as needed.

6. Is it safe to drive my 2010 Toyota Camry with the P0455 code?

Yes, it’s generally safe to drive with this code, but ignoring it can lead to increased emissions and potential fuel system issues over time.

7. How do I diagnose the P0455 code on a 2010 Toyota Camry?

Use an OBDII scanner to confirm the code, then inspect the gas cap, EVAP hoses, valves, and canister for leaks or damage. A smoke test can help locate hard-to-find leaks.

8. How much does it cost to fix the P0455 code on a 2010 Toyota Camry?

Repair costs vary depending on the cause. A gas cap replacement may cost $20-$50, while more extensive repairs like replacing the charcoal canister or valves may cost $200-$600.

9. Can extreme weather cause the P0455 code in a 2010 Toyota Camry?

Yes, extreme temperatures can cause EVAP system components to crack or hoses to loosen, potentially triggering the code.

10. Will clearing the P0455 code solve the problem?

Clearing the code will turn off the check engine light temporarily, but if the underlying issue isn’t fixed, the code will return.

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