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  1. J

    O2 Sensor & Engine Light

    My check engine light went on so I took it to Autozone to hook to find out what the problem was and the OBDII system stated P0171 and P0174 (lean mixture). The guy told me it meant it was the O2 sensors. I have almost 90,000 miles on a 2001 so I figured it could be that so I bought them (about...
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