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Car Forum / Nissan / Nissan Cars / July 2005

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Any easy way to figure out which Oxy Sensor is bad ?

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Gary Hayek - 21 Jun 2005 22:44 GMT
I've got a '96 Pathfinder, and getting a trouble code that one of the Oxygen
Sensors to the rear of the Catalytic Converters is bad.  Does anyone know
any easy way to tell which one is bad ?  Its cheaper to buy both of them,
than to have the dealership figure it out (getting quoted around $200 to
diagnose which one it is - crazy when 1 cost $75 and the other costs $85).
Sly - 21 Jun 2005 23:55 GMT
id replace em both at the same time

> I've got a '96 Pathfinder, and getting a trouble code that one of the Oxygen
> Sensors to the rear of the Catalytic Converters is bad.  Does anyone know
> any easy way to tell which one is bad ?  Its cheaper to buy both of them,
> than to have the dealership figure it out (getting quoted around $200 to
> diagnose which one it is - crazy when 1 cost $75 and the other costs $85).
Gary Hayek - 22 Jun 2005 01:52 GMT
Yea, that's what it looks like I'll be doing

On 6/21/05 6:55 PM, in article TV0ue.90563$xm3.90009@attbi_s21, "Sly"
<askme@myserver.com> wrote:

> id replace em both at the same time
>
[quoted text clipped - 4 lines]
>> than to have the dealership figure it out (getting quoted around $200 to
>> diagnose which one it is - crazy when 1 cost $75 and the other costs $85).
NissTech - 22 Jun 2005 00:36 GMT
The code number will tell you

it will either be a bank 1 sensor 2 code,
or a bank 2 sensor 2 code.

Each sensor is assigned it's own failure code. Instead of guessing and
spending more money than you need to , why not take it to someone that knows
what they are doing and get it diagnosed correctly.

> I've got a '96 Pathfinder, and getting a trouble code that one of the Oxygen
> Sensors to the rear of the Catalytic Converters is bad.  Does anyone know
> any easy way to tell which one is bad ?  Its cheaper to buy both of them,
> than to have the dealership figure it out (getting quoted around $200 to
> diagnose which one it is - crazy when 1 cost $75 and the other costs $85).
Gary Hayek - 22 Jun 2005 01:55 GMT
Well, already paid $95 to get told that its just one of the sensors -
nothing in the readout about any bank - just that it was behind a cat
converter.  Being told that anything in more detail requires them to remove
and test each sensor out of the vehicle.

On 6/21/05 7:36 PM, in article
Rv1ue.168345$w15.74382@tornado.tampabay.rr.com, "NissTech"
<Haywood_Jablowme@msn.com> wrote:

> The code number will tell you
>
[quoted text clipped - 11 lines]
>> than to have the dealership figure it out (getting quoted around $200 to
>> diagnose which one it is - crazy when 1 cost $75 and the other costs $85).
NissTech - 23 Jun 2005 03:13 GMT
let me guess,

You are taking it to an independent , not the dealership

If the independent can't tell you which sensor it is by the data from their
scan tool , you need to get your pathpuppie out of there and get it to
someone who knows what they are doing

> Well, already paid $95 to get told that its just one of the sensors -
> nothing in the readout about any bank - just that it was behind a cat
[quoted text clipped - 20 lines]
> >> than to have the dealership figure it out (getting quoted around $200 to
> >> diagnose which one it is - crazy when 1 cost $75 and the other costs $85).
Gary Hayek - 23 Jun 2005 22:39 GMT
No,

This was at the dealership !

On 6/22/05 10:13 PM, in article
iVoue.108372$VH2.27921@tornado.tampabay.rr.com, "NissTech"
<Haywood_Jablowme@msn.com> wrote:

> let me guess,
>
[quoted text clipped - 34 lines]
>>>> diagnose which one it is - crazy when 1 cost $75 and the other costs
> $85).
njmodi - 23 Jun 2005 22:53 GMT
Go to your local autozone (assuming that the CEL is still lit) and have
them pull the codes for you (they do it for free around here).  The
code they pull should help you exactly identify which O2 sensor has
failed.  In the case of multiple codes being pulled - you may have more
than one failed sensor/part.

Cheers,
Nirav
96 Max GLE, 118k
NissTech - 24 Jun 2005 01:34 GMT
ok dude , here is the bottom line.

It's obvious the dealership wants more money from you than the problem
requires.

I suggest you take your truck somewhere else.

> No,
>
[quoted text clipped - 42 lines]
> >>>> diagnose which one it is - crazy when 1 cost $75 and the other costs
> > $85).
James Deakins - 24 Jul 2005 07:33 GMT
Alternately,  disconnect one and see if you get another trouble code.  Then
disconnect the other.

> I've got a '96 Pathfinder, and getting a trouble code that one of the
> Oxygen
> Sensors to the rear of the Catalytic Converters is bad.  Does anyone know
> any easy way to tell which one is bad ?  Its cheaper to buy both of them,
> than to have the dealership figure it out (getting quoted around $200 to
> diagnose which one it is - crazy when 1 cost $75 and the other costs $85).
 
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