Air fuel ration sensor failures

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Old 10 Jan 2005, 09:50 pm   #1 (permalink)
Spectri
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Default Air fuel ration sensor failures

02 Camry SE V6 - Check engine light came on.
Dealer diagnosis - two failed air fuel ratio sensors.

Anyone know if it unusual for two to fail simultaneously ?

Vehicle is off warranty but dealer has offered to pay 60%
of the estimated $1,000 replacement cost.


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Old 11 Jan 2005, 08:08 pm   #2 (permalink)
qslim
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Default Re: Air fuel ration sensor failures

That is pretty interesting... how did they come to that conclusion?

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Old 12 Jan 2005, 02:51 am   #3 (permalink)
Rog
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Default Re: Air fuel ration sensor failures

those sensors cost $150 each max

"Spectri" <dave1xyz@yahoo.ca> wrote in message
news:v2IEd.47125$8l.1700@pd7tw1no...
> 02 Camry SE V6 - Check engine light came on.
> Dealer diagnosis - two failed air fuel ratio sensors.
>
> Anyone know if it unusual for two to fail simultaneously ?
>
> Vehicle is off warranty but dealer has offered to pay 60%
> of the estimated $1,000 replacement cost.
>
>



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Old 12 Jan 2005, 04:58 am   #4 (permalink)
Spectri
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Default Re: Air fuel ration sensor failures

I suppose I should take them to task on that. I assumed
they plugged
in and read the codes which brought the Check Engine light
on.
==================================

"qslim" <Suckers@suckersdotcom> wrote in message
news:a504f2f9cda895dba164fdee171d9d2e@localhost.ta lkaboutaut
os.com...
> That is pretty interesting... how did they come to that

conclusion?
>



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Old 12 Jan 2005, 06:10 am   #5 (permalink)
qslim
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Default Re: Air fuel ration sensor failures

Actually, Rog, air fuel ratio sensors (as opposed to oxygen sensors) from
the dealer can cost well into the mid $200 range.
But a grand still sounds steep.









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Old 12 Jan 2005, 06:12 am   #6 (permalink)
qslim
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Default Re: Air fuel ration sensor failures

Hmmm. May be the case I suppose, though I've never seen it. And by the way,
how in the world did they come up with a grand to replace the AF sensors?

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Old 12 Jan 2005, 09:08 am   #7 (permalink)
ROBMURR
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Default Re: Air fuel ration sensor failures

Run away! Get the codes checked at
an autoparts store, bet its nothing as
serious as 2 failed sensors! Wow, they
got them priced way too high!
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Old 12 Jan 2005, 12:01 pm   #8 (permalink)
Rog
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Default Re: Air fuel ration sensor failures

Qslim, how are they different? I haven't had a chance to see one yet. Do
they replace O2 sensors or complement them?

"qslim" <Suckers@suckersdotcom> wrote in message
news:61801e71615912b1f5f55c99a0e001a4@localhost.ta lkaboutautos.com...
> Actually, Rog, air fuel ratio sensors (as opposed to oxygen sensors) from
> the dealer can cost well into the mid $200 range.
> But a grand still sounds steep.
>
>
>
>
>
>
>
>
>



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Old 12 Jan 2005, 12:19 pm   #9 (permalink)
Philip
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Default Re: Air fuel ration sensor failures

Google is your friend: http://www.gmtcny.com/WBO2S.htm

Rog wrote:
> Qslim, how are they different? I haven't had a chance to see one
> yet. Do they replace O2 sensors or complement them?
>
> "qslim" <Suckers@suckersdotcom> wrote in message
> news:61801e71615912b1f5f55c99a0e001a4@localhost.ta lkaboutautos.com...
>> Actually, Rog, air fuel ratio sensors (as opposed to oxygen sensors)
>> from the dealer can cost well into the mid $200 range.
>> But a grand still sounds steep.



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Old 12 Jan 2005, 06:46 pm   #10 (permalink)
qslim
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Default Re: Air fuel ration sensor failures

Rog, AF sensors replace o2 sensors. The benefit is that they can give a
more specific feedback on the degree of the current rich/lean condition of
the engine. In other words, an o2 sensor will tell the system if the engine
is rich or lean, but not by how much. With an AF, the system can now tell
just how rich or lean the system is operating, so it can better compensate
(i.e. be more efficient). The other wacky thing is that they can only be
read via a scantool with the appropriate software, you can't measure their
output directly like an O2 sensor. And, guess what; Toyota gets to charge
you a whole lot more for 'em!

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