the yellow check engine light is on, what am gonna do?

[ThePhoenix]

these codes usually point to intake gaskets. I would NOT change the O2 sensors as they usually just read output. Its like changing the thermometer just because its hot out

do a search for intake gaskets on this site. good news is its cheap, bad news is it takes some time esp if you are not a professional. It took me about 6 hours (with beer breaks)

 

[ThePhoenix]

that last one...ev thingy is way over my head

 

[G-96XLT]

It might not be the intake. Either way I changed intake gaskets in way less time. About 1.5 hrs per side and the thing was under $10.