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Edie Valencia

Edie ... 4/2/2010

1999 Mazda Protege ES 4 Cyl 1.8L

Engine

vehicle failed emission test for O2, I plugged the OBDII, and got P0171 code

1 Answer


HouseCallAuto

HouseCallAuto 4/2/2010

You need intake manifold gaskets. Probability is 99%.

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