P1440 – Land Rover DTC

Land Rover DTC P1440 – Evap System Purge Valve Stuck Open Fault

DTC P1440 meaning on Land Rover

DTC P1440 on a Land Rover indicates an Evaporative Emission Control System Purge Valve Stuck Open fault. This fault code is triggered when the Engine Control Module (ECM) detects that the purge valve, which controls the flow of fuel vapor from the charcoal canister to the engine intake, is stuck in the open position.

Land Rover DTC P1440 symptoms

Symptoms of a P1440 fault on a Land Rover may include:

• Check Engine Light illuminated on the dashboard
• Decreased fuel efficiency
• Strong fuel odor near the vehicle

Land Rover DTC P1440 causes

The common causes of a P1440 fault on a Land Rover include:

• Faulty Evaporative Emission Control System Purge Valve
• Wiring or connector issues in the purge valve circuit
• Charcoal canister saturation

Land Rover DTC P1440 seriousness

While a P1440 fault may not cause immediate drivability issues, it can lead to increased emissions and decreased fuel efficiency. It is important to address this fault to ensure proper operation of the vehicle’s emission control system.

How to diagnose DTC P1440 on Land Rover

To diagnose a P1440 fault on a Land Rover, follow these steps:

1. Use a diagnostic scan tool to retrieve the fault code and freeze frame data
2. Inspect the purge valve and its wiring for any visible damage or corrosion
3. Perform a smoke test to check for leaks in the evaporative emission system

How to fix DTC P1440 on Land Rover

To fix a P1440 fault on a Land Rover, you can:

1. Replace the Evaporative Emission Control System Purge Valve
2. Repair any damaged wiring or connectors in the purge valve circuit
3. Clean or replace the charcoal canister if necessary

How to erase DTC P1440 on Land Rover

To erase a P1440 fault code on a Land Rover, you can:

1. Use a diagnostic scan tool to clear the code after the repair has been completed
2. Ensure that the fault does not return during a test drive

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