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  1. R

    P1131 Code

    Howdy. I'm getting the P1131 code on my sister-n-law's '99. As I understand, this means there is a lack of a heated O2 sensor on the upstream. Can anyone tell me exactly where that O2 sensor is? Is it fairly close to the manifold? Or is it further down?
  2. R

    What axle on '99 V6?

    My sis-n-law has a '99 V6 auto. What axle should it have? 7.5 or 8.8? I know that it has an open carrier and 3.27 gears. If an 8.8, what spline axles then?