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					Originally Posted by Topless
					
				 
				Dealers will often tell you that you need new O2's when you get a CEL.  Mine said I needed all four at $1200.  They were wrong.  It was a bad MAF.  I fixed it myself.  6000 miles later and no more CEL... car runs like new.   
 
What error codes did they get? 
			
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They did not tell me the code, just that they needed replacement.