can someone take an upclose picture of they're secondary o2 i would really appreciate it i just wanna see how the wires go into the socket, cause im trying to modify a primary to work as a secndary cause secondarys are freakin expensive. and just wanna see if the wirings any different.

Thanks

 

secondary? do you mean the downstreat post cat O2?

 

bump: I would like to know as well.. How much are secondary's?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Project99EK &raquo;</TD></TR><TR><TD CLASS="quote"> and just wanna see if the wirings any different.

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They're wired the same.

 

If its B16A1 OBD0 there is only one wire coming off of them. You didn't specify what it was exactly.

 

its obd2 off a 99 d16y7

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Project99EK &raquo;</TD></TR><TR><TD CLASS="quote">, cause im trying to modify a primary to work as a secndary cause secondarys are freakin expensive. and just wanna see if the wirings any different.

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Where the hell are you getting your sensor from? Up here in Canada, ALL O2 sensors are the same price from the dealer. It doesn't matter if it is a primary OR a secondary.....same price.

 

arent they the same part? and same plug go to the junk.. you can prolly get it for free if your slick enough

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Project99EK &raquo;</TD></TR><TR><TD CLASS="quote">its obd2 off a 99 d16y7</TD></TR></TABLE>

They are wired exactly the same way...I own the same car.

 

They are different part numbers, the actual sensor portion is the same, but the connector is different.

 

Yes, different part # - Agreed.

Different connector - Absolutely DISagree. Could you at least mention what model it is you know to have different connectors? Because I'm telling you, my 99 hatchs' O2 sensors share the same connector.

 

on the obd0 B16A's the connectors are different so you dont mix them up...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EE_Chris &raquo;</TD></TR><TR><TD CLASS="quote">Yes, different part # - Agreed.

Different connector - Absolutely DISagree. Could you at least mention what model it is you know to have different connectors? Because I'm telling you, my 99 hatchs' O2 sensors share the same connector.</TD></TR></TABLE>

Sorry, not very specific. They can be connected the same way, but the rear sensor has a grommet on it to seal it on the floor so you don't get water in the cabin, and the wiring is a different length.

If they are the same price, why not just order the correct sensor?

 

First of all its not the "Secondary O2" its the down stream. A downstream o2 sensor
is not used to measure the fuel/air ratio. Its only job is to mon. your cat converter.
You will only find a downstream o2 on a vehilce that is OBDII. If your car is OBDII and you want to use this o2 as your upstream there is few things about the sensor you will need to know. First is if its a 4 wire o2 you are going to have 2 wires for the heated circuit, one data wire, and one ground. Alls you will need is a wireing diagram and you can figure witch one is what, then it can be wired in. Becarefull though I have seem people fry ecu's by crossing the data wire. There is also a chance of a check engine light comeing on and the vehicle running poorly. Newer cars are very touchy with there o2s. Your best bet is not to be cheap and buy a new one. NTK makes a very good o2. As a mater of fact they manufacture for OE.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SoCalAutotech &raquo;</TD></TR><TR><TD CLASS="quote">First of all its not the "Secondary O2" its the down stream. A downstream o2 sensor
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I'm going to continue to refer to o2s as primary and secondary. I don't care what the noob says.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chiovnidca &raquo;</TD></TR><TR><TD CLASS="quote">
I'm going to continue to refer to o2s as primary and secondary. I don't care what the noob says. </TD></TR></TABLE>

I agree with you there

Try going to a parts dept. and asking for the "downstream" O2.......