Intermittent Check engine light on 2006 Chevrolet Cobalt

I read about the misfire that is common on the 2.4L. My question is how do I get it fixed? Everytime I bring it to the dealer the light doesn't come on. The next day it's back and around I go again

by in Lilburn, GA on February 19, 2009
2 answers 1 comment
ANSWER by on February 19, 2009
Once the light has come on, the code will be stored until someone erases the it, so when you take it in, have them give you a printout of the stored code information. Post the code here and someone may have some info for you.
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COMMENT by on March 31, 2010
To the anonymous user: Take this to another shop that can properly diagnose this, or demand that they explain why the problem continues to occur after they have replaced a bunch of parts? Why should you have any faith in any of their recommendations now? Look here for better options: http://repairpal.com/directory
ANSWER by on March 31, 2010
I am having the same problem. I took to AAMCO and they replaced my plugs and spark plug wires along with the boots. It came back on. The diagonosies was a fuel injection misfire. Had those cleaned and today it is back in the shop. They are now saying need a new oxygen sensor? I am so tired of this entire thing. They have reset the light 3 times and after a day it is BACK!!
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I have a 2007 Chevy Cobalt and my check engine light is on and the code is P0496, can someone tell me what this might be and if so where can I find it to replace it?