my jdm b16 only has 1 o2 sensor and its on the down pipe right before the cat, theres no holes in the manifold for a o2 sensor.. whats up with that?

 

Great work .. really informative .. and thanks a lot for sharing ..

 

obd0 b16a have 2 o2 sensors at the exhaust manifold, other obd b16a only has 1 sensor, assuming you have an obd0 b16a, you can use one o2 sensor and tap another wire, one sensor with 2 wire output, c8 red/white & c16 white

 

lol.

 

but my manifold has no o2 bunges. NONE.why would it have none at all?? and in order to work properly the o2 needs to be in the manifold because they need to be heated by the exhaust because there only 1 wire sensors they have no internal heater

 

No bung holes, sorry I had to LOL,ifht mean you have a newer Gsr manifold. I think they only had a cat mounted o2.