AFR sensor installation
I am having trouble determining where I should be tapping in a sensor for an Air Fuel Ratio gauge.
I have read that #6 cylinder runs richest but I have also read that #6 runs leanest.
I understand that you want to get the signal from the leanest cylinder.
My questions are
1)can you remove one of the factory O2 sensors per-cat and screw in the wide band sensor or do you need to install a new bung?
2)if I need to weld in a new bung where should it go?
I have stock manifolds.