Q&A

Your P0442 code indicates a small leak in the evaporative system. These small leaks are sometimes hard to diagnose, sometimes you need a SMOG machine to use as a hydrocarbon sniffer to find the leak.
If you want to find out more and try it yourself,
here are two sources for you:
For AllData:
http://bit.ly/AllData_Repair_Manuals_Online
Here's the one for Mitchell as well:
http://bit.ly/mitchell_repair_manuals_online