Part # for 2nd Exhaust Sensor Post CAT

[ibuansary]

Hi guys,

Iv searched Google and the forum but haven't come up with anything.
This is the 2nd sensor after the catalytic converter - Pre-CAT and 1st sensor post CAT have already been changed to Bosch units but I cant seem to get a hold of what this is and what the correct part number for this would be.

My CAT MIL has lit up thanks to this unit breaking and falling off -

Iv attached pics of the connector pin type and the little piece of whats supposed to be there with this.

Would appreciate any help I get.

Thanks.

PS : Apologies if this is in the wrong section.

[ibuansary]

Re: Part # for 2nd Exhaust Sensor Post CAT

Images didn't seem to load -


[img=http://s9.postimg.org/z9udm5d63/20141206_171004.jpg]

[img=http://s28.postimg.org/3pb2oeaex/20141206_170944.jpg]

[ssms5411]

Re: Part # for 2nd Exhaust Sensor Post CAT

I would try Rockauto.com

[ibuansary]

Re: Part # for 2nd Exhaust Sensor Post CAT

@Ssms5411 - Rockauto Turned up blank - all 4 PIN O2 Sensors whereas this one is just 2 (from the image)

Jesus does anyone know what this is ?

[FirebirdGT]

Re: Part # for 2nd Exhaust Sensor Post CAT

Can not get your images to load.

What year?

There are only two, a Pre- and a Post-CAT sensor

98-02 Both sensors are p/n 25312207

96-97 Both are p/n 25312196

95 Both are p/n 25312188

Do not understand how you have THREE?
.

[bigbrian442]

Re: Part # for 2nd Exhaust Sensor Post CAT

That doesn't look like an O2.

[ibuansary]

Re: Part # for 2nd Exhaust Sensor Post CAT

@FirebirdGT & @Bigbrian442 - Thanks guys - Yes it doesnt appear to be an O2 Sensor.
The number Firebird gave for my 97 Camaro makes it seem like there was a 2nd Sensor after the CAT to measure the Temperature (Post CAT Exhaust TEMP) And set off the alarm :/ .. It was only present in export models (mine happens to be a Japan Export)

Only problem is I cant find the Part Number and nalleygmc wants 330$ for it ! :(

I really hate the CAT MIL on the Dash :(

[Hib Halverson]

Re: Part # for 2nd Exhaust Sensor Post CAT

So...you have read the codes and the ones which are set are cat efficiency codes?

Or is the code specific to the cat overtemp sensor on export cars?