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o2 sensor

  1. Bad MPG - fixed!

    Second Generation MDX (2007-2013)
    Dear MDX-ers, I want to share my recent experience with 2007 MDX. A year ago my MDX's average MPG started getting worse i.e. from 21-22 MPG to 17-18 MPG (70% highway, 30% city driving). Everything seemed OK with engine, tires, no leaks, same gasoline, ... Until few weeks ago when I got two error...
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