What does error code P0440 on a 2001 Infiniti 2001?

Answer 1

Error code P0440 on a 2001 Infiniti indicates a malfunction in the Evaporative Emission Control System (EVAP). This code typically points to issues such as a faulty gas cap, leaks in the EVAP system, or problems with components like the charcoal canister or purge valve. It is essential to inspect these components to determine the exact cause of the error and ensure proper emissions control. A diagnostic scan tool can help in further troubleshooting.