Can I use a secondary o2 sensor as a primary? is it the same sensor?

 

Both have different part numbers. So, they might not work. I'm guessing 1 monitors oxygen before the cat then 1 monitors after the cat. So, the readouts might be different. Or, I might just be blabbing out of my ***.

Someone on here who has used both can chime in...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dimi &raquo;</TD></TR><TR><TD CLASS="quote">Both have different part numbers. So, they might not work. I'm guessing 1 monitors oxygen before the cat then 1 monitors after the cat. So, the readouts might be different. Or, I might just be blabbing out of my ***.

Someone on here who has used both can chime in...</TD></TR></TABLE>

I thought the only difference was the length of the wires for different positions. I may be way off here also, but that was my thoughts.

Brad

 

That could also be it. I wouldn't think they would be different. An O2 sensor, should be an O2 sensor, whether it be before or after the cat.

 

wow.. can any one confirm this... cuz there is a big difference in the price of sensors before and after the cat.. if they are the same just longer wires or different connectors or something then it would be cool to buy the cheaper on and just cut up the wiring a bit

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by georgj &raquo;</TD></TR><TR><TD CLASS="quote">I thought the only difference was the length of the wires for different positions. I may be way off here also, but that was my thoughts.

Brad</TD></TR></TABLE>

you're thinking right. the universal part # for the 2 sensors is the same. the only difference is the length of the wires.

i'm using a secondary sensor off a 99 ex as the primary (only) 02 sensor on my b18b

 

theyre the same functionally

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Trailz-EX &raquo;</TD></TR><TR><TD CLASS="quote">wow.. can any one confirm this... cuz there is a big difference in the price of sensors before and after the cat.. if they are the same just longer wires or different connectors or something then it would be cool to buy the cheaper on and just cut up the wiring a bit</TD></TR></TABLE>

if you're going to cut up wires, you might as well buy the denso universal replacement. its the same as the oem direct fit one, minus the oem style plug

 

i dont know the exact honda price difference but i know the bosch difference is like thirty dollars and they dont even have the connectors on them.. you have to wire them your self.... would any four wire sensor work? just find a really cheap one and wire it up..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dantastic &raquo;</TD></TR><TR><TD CLASS="quote">

if you're going to cut up wires, you might as well buy the denso universal replacement. its the same as the oem direct fit one, minus the oem style plug</TD></TR></TABLE>

this is how the bosch sensor comes.. about how much for the denso sensor? is one better than the other? (i have a big problem with o2 sensors lasting more than a month for some reason, very excited about find a cheap way to fix them)
obd2 sucks by the way

 

I got denso o2 sensor off of ebay by the seller name of "sparkplugssource"

It was about $45 for the universal and $50 for the direct plug on the first sensor. The second one you have to use the universal unless you want to spend about $75 for a direct plug.

I bought the direct plug on the first and universal on the second. Becareful wiring the second one. I think the wiring is different. They come with decent instructions.

Good luck!