Ok I have very little clearence...I was wonderin if i can put the o2 sensors in front of another on my downpipe.....
It's on a b16a in a Rex......i really dont see how im gunna do this....
anybody got an idea?

 

is there already one in the stock location ?

 

on the downpipe? no.....
i have the rywire kit...that comes with the connector for the 2nd o2 .....just need to know how i can put them

 

Are you running a wideband and a narrowband? Or are you just wanting to run 2 for an OBDII set-up?

If you are OBDII then the second one needs to read a lower level than the first, like it would be if there was a cat.

If you are doing the first thing I mentioned then you can just run them close to each other. It will not harm anything.

 

iunno if it narrow or not....im just bolting stock 02 sensors up...back to back....
its a 91 CRX HF
b16a Obd0....
im using a Pw0

 

i dont understand what your question is

 

I think he is trying to fit two O2 sensors in the same whole.

 

IIRC the 2nd O2 is for checking the cat converter...or something. Just put the main O2 sensor in the 1st hole, the secondary in the 2nd. If an O2 sensor is less than 12" or so behind another (or some type of obstruction), it may not read very accurately. If you can, 'splay' them in the pipe, do not put them in the same line, like one at 2 o'clock possition, the other at 10 o'clock possition behind it.

 

thanks man....i really appreciate that.....

 

The second O2 is for 1 pair of cylinders, the PR3 and PW0 use 2 O2 sensors. Look it up on hondata. I put my friends 2 o2 sensors right inline. No problems on 9.5lbs with a b16 on an fmu. Runs low 12's all day.