P0460 – OBD-II DTC

OBD-II DTC P0460 – Evaporative Emission Control System Leak Detected (gross leak)

DTC P0460 meaning

DTC P0460 refers to a diagnostic trouble code indicating that the Evaporative Emission Control System has detected a gross leak. This system is designed to prevent fuel vapors from escaping into the atmosphere, and a gross leak suggests a significant issue, such as a large crack or a disconnected hose.

DTC P0460 symptoms

Common symptoms associated with DTC P0460 may include:

• Check Engine Light illuminated
• Decreased fuel efficiency
• Strong fuel odor
• Failed emissions test

DTC P0460 causes

Several factors can lead to the triggering of DTC P0460, including:

• Loose or damaged gas cap
• Cracked or damaged EVAP hoses
• Faulty EVAP canister
• Defective purge valve
• Fuel tank leaks

DTC P0460 seriousness

DTC P0460 is considered a serious issue because it indicates a significant leak in the evaporative emissions system. This can lead to:

• Increased emissions, contributing to environmental pollution
• Potential damage to the fuel system
• Failure to pass emissions testing
• Possible engine performance issues

How to diagnose DTC P0460

To diagnose DTC P0460, follow these steps:

1. Use an OBD-II scanner to confirm the code and check for any additional codes.
2. Inspect the gas cap for proper sealing and condition.
3. Visually inspect all EVAP hoses and components for cracks or disconnections.
4. Perform a smoke test to identify any leaks in the EVAP system.
5. Check the operation of the purge valve and other related components.

How to fix DTC P0460 step-by-step instructions

To fix DTC P0460, follow these steps:

1. Ensure the gas cap is tightened properly or replace it if damaged.
2. Repair or replace any cracked or damaged EVAP hoses.
3. Replace the EVAP canister if it is found to be faulty.
4. Fix or replace the purge valve if it is not functioning correctly.
5. Address any fuel tank leaks by inspecting and repairing the tank as necessary.
6. Clear the DTC using an OBD-II scanner and test drive the vehicle to ensure the issue is resolved.

How to erase DTC P0460

To erase DTC P0460, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the vehicle to check if the code reappears.