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What is your question?
I took my 2000 c230 2 different shops,and was told to replace fuel filter,fuel p.regulator,spak plugs,ect sensor,02 senser which cost $1,000 after all these repairs the light still on,and not passing smog.please help!
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What is the Check Engine Light Code? It may be the P0171 and/or P0174, which seems to puzzle most shops, unless they are very experienced in Emissions Diagnosis. I do Emissions work in CA and see this a lot. here is an article I wrote for that code to help shops http://repairpal.com/OBD-II-Code-P0171-and-P0174 or it may be http://repairpal.com/OBD-II-Code-P0172-and-P0175