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2004 mazda mpv geting fault code p0 174 .what should the problem be???

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It means that you've got a too lean (too much oxygen) condition in the exhaust. It may only be a dirty MAF (mass airflow) sensor. Are you running an "oiled-type"air filter such as a K&N? This can contribute to a dirty MAF sensor. HERE is a diagram to help you out. Good luck.

Posted on Nov 20, 2008

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