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What does ENGINE code pO497 mean?

P0497 is an OBD-II trouble code that indicates a problem with the evaporative emission (EVAP) system. The EVAP system is designed to prevent fuel vapors from escaping into the atmosphere. When the code P0497 is set, it means that the ECM has detected a leak or some other issue with the EVAP system.

Some common causes of P0497 include:

* Damaged or leaking EVAP lines or components

* Faulty EVAP control solenoid valve

* Faulty gas cap

* Blocked or damaged vapor canister

If you are experiencing the code P0497, it is important to have it diagnosed and repaired as soon as possible. A leaky EVAP system can lead to increased emissions and decreased fuel efficiency.