Today, my engine check light came on and the found them to be 0304 (knock sensor or circuit fault) and 0111 (EVAP purge flow monitor fault) . My tank was at 1/4 and I have 62,000 miles on it. Any ideas for a fellow member

 

Anyone? Help me out

 

Love to help, but haven't had the codes (yet...)
I would call the dealer and explain the code, acting as if you know little about them and see what they say about it--ask for possible price to fix...

 

I changed my spark plugs a 1/2 hour ago and discovered that a rubber tube has been broken away from a little valve located under my fstb. I have pics on my home page. The first two pictures. What is this valve? Maybe that is the reason I had those codes. Any input, anyone??