Originally posted by Tony2005:
I think F111D F is asking about this one. www.OBD-codes.com

Originally posted by Big Jim:
A loose gas cap most certainly can cause this code. Follow this link:

http://www.obd-codes.com/trouble_codes/generic/p0455-evaporative-emission-control-system-leak-detected-large.php
...



This explains why it was started.
http://www.obd-codes.com/about.php



That was posted so long ago that I had forgotten about it. I found it on a google search. Now that I look back on Tony's comments I realize that it is probably worth bookmarking for future reference. It looks like on of the better OBD II sites.

Jim Johnson 98 SVT 03 Escape Limited