P1117 and P0440
 

The CEL is on and the reader at AutoZone shows the codes as P1117 and P0440.

According to search results, P1117 is the O2 sensor after the cat on the passenger/right side of the car. I've ordered the sensor and should be able to replace it Friday or Saturday.

I haven't been able to obtain too much info on P0440 except that it involves the evaporative system.

After I replace the O2 sensor, I'm planning to have AutoZone clear the codes. If the CEL comes back on after that the car is visiting the Porsche specialist.

Has anyone had a similar combination of codes or have any wisdom to offer?

Thanks