Hi All,
I want to ask for your help. Unfortunately, our ’99 montero sport doesn’t have the original exhaust system, now I’m trying to reconstruct the original, but one of the oxygen sensors doesn’t have a location. does anyone have a 3.0 V6 24V with 2 oxygen sensor? because I only found information about the 4-piece version. Thanks!

 

The 99 sport w/federal emissions should have 2 oxygen sensors, one before the catalytic converter and one after.

 

Thank you!