is there any difference between them, besides what it does, is there any difference with fitment, size, volts, ....ANYTHING at all?

 

come on...no one answered me? someones gotta know this

 

Functionally, they're the same. The only real difference is in the length of the wires and the fact that the secondary O2 has a rubber grommet since the connector plugs in inside the passenger compartment.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">Functionally, they're the same. The only real difference is in the length of the wires and the fact that the secondary O2 has a rubber grommet since the connector plugs in inside the passenger compartment. </TD></TR></TABLE>
x2

they are the same. the only thing that O2s do is read exhaust content before and after the cat. if the readings differ between the two, your cat is good and no check engine light. if the readings are the same, obviously your cat is not doing its job. so to answer your question, YES, they are the same.

 

ok then why is there a DRAMATIC difference between both of them price wise. so youre saying i could just get a pre cat direct fit o2 and stick it in the cat o2 bung and it would work fine?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sickofitall1113 &raquo;</TD></TR><TR><TD CLASS="quote">ok then why is there a DRAMATIC difference between both of them price wise.</TD></TR></TABLE>

There isn't:

36531-P73-G01 SENSOR, OXYGEN 1 1998 INTEGRA 264.94 211.95

36532-P73-A01 SENSOR, RR. OXYGEN 1 1998 INTEGRA 264.94 211.95

http://acuraautomotiveparts.or...ormal

 

no, there is. im not paying 200 bucks for an o2 sensor thats insane. call up any autozone and ask for prices on both. primary is 90 something dollars, secondary is like 235 or something. why is this?

take a look at this list from advance auto parts. look at the diff between the upstream, as they call it, and the down stream sensors.

http://www.partsamerica.com/Pr...ensor

 

I originally thought we were discussing the factory sensors, which are identical other than the differences I mentioned. It seems that, with the difference in price, there is also likely a difference in functionality among the aftermarket models. My assumption would be that it has to do with the sensor's accuracy, response time, or some other aspect of its performance. Somehow, perhaps this lesser performance was deemed sufficient for primary O2 sensor usage, but not for secondary sensor usage (which seems counter-intuitive, but I suppose it's possible considering the sensitivity of the OBD2 diagnostics). To be honest, I'm not certain what the difference between those two is, but I think your best bet would be to try locating a lower-mileage OEM sensor if you don't want to pay for a new one. I rarely read positive comments regarding the universal replacements, especially the inexpensive ones.

 

no padawan you are definately right. the universal kind do not work very well at all. i have tried to locate one and i actually bought one from a member on HT but it didnt work after i put it in. i might have to bite the bullet and pay 200 bucks for something that a 97' integra owner doesnt have to worry about. uhg.

 

I had no problem moving the primary O2 sensory to the secondary after purchasing a new NGK primary O2. Passed smog too.