Where do you guys put your wideband O2 sensors? Just on one bank, or after the y-pipe?

 

I put my O2 bung in the Y right after the header collector before the bend on the drivers side. Waiting on my LC-1 kit to come in to see how it all works.

 

right behind the driver side header collector near the turn to the passenger side

 

Cool, thanks guys!

Keep 'em coming everyone else!

 

Drivers side after the collector, before the cat. converter. #7 cylinder is notorious for going lean (Drivers side closest to firewall)
Place the sensor so it is orientated at the 3 or 9 O’clock position. This will keep it from sitting in the moisture left in the exhaust after you turn the truck off

 

i mounted mine today...i forgot to get pics but its on the driver side right after the collector at the 3 o clock spot, i had to use a 90 degree drill and broke 2 drill bits making a pilot hole before i could use the unibit. works perfect so far

 

I'm getting ready to mount my wideband sensor, and I'm reading conflicting information from forum information vs vendor instructions.

I have factory manifolds with stock cats, and most say to mount the sensor pre-cat, however reading the sensor's instruction manual it says to mount the sensor approx 40" away from the nearest exhaust valve OR weld a nut to the O2 bung to pull the sensor out of the direct exhaust stream.

What are your thoughts/experiences?

 

If this is an NA truck then do pre-cat. If it was turboed you would want it further away and after the tubine, but youll be fine with it closer.

 

I put mine in the collector before the flange. If you put it after the flange then if you have a leak your readings will be off. Putting it before the flange you really dont have to worry about leaks.

 

Pulling the drivers side manifold might actually be easier than pulling the stock Y-pipe down.

Wouldn't that be too close to the nearest exhaust port with factory manifolds? Does that really matter?

Preciate the help guys!