Hello, and thank you for letting us help you with your automotive question. This code is for a small evap leak. This can be coming from a number of different areas. Typically it is from the gas cap or the filler neck where the gas cap screws onto. If there is any uneven areas then the cap will leak. If this is fine then you need a smoke test if there is not any signs of moisture around any of the tank parts. It may be a check valve or a vent valve but that is not likely.

Not typically if the cap has any small cracks in the gasket or if the neck has small imperfections. The valves will typically cause a larger leak.

No, unless you know for sure that this is the issue. Otherwise you are just throwing money at it. If there is any doubt that the seal on the cap is not perfect and is not cracked or flattened then replace it first and clear the code. If the problem comes back then have a smoke test done before wasting any money on unnecessary parts.

Thanks for the reply Jeff. Please keep me posted and we can continue if necessary.

Have a good evening.

Thanks.