Differences between front and rear O2's?

[Nagash01WS6]

Are there any?????
Is it just the harness length?????

Is the rear sensor a bit longer or shorter????

Rears are about $30 cheaper....

 

[yellow1995Cobra]

We only have 2 o2's in our cars. All parts stores list 4 for some reason. You want the ones before the cats, since thats what we have. They didnt start putting 4 02's in until 96.

 

[swingline]

www.oxygensensors.com They are the cheapest.

 

[VIPERn94Five-0]

yup we only have front 02's....the 96+ cars have 4....2 before the cats, and 2 after....damn the government and OBD II!


Anthony

 

[Nagash01WS6]

well... thats pretty cool.

Guess I'll go lie and say that one wasnt long enough and look at the rear one and see if they are the same.

 

[mo_dingo]

The rear O2 Sensors only monitor the efficiency of the catalytic converts (96-up mustangs). I imagine they are very different than the front O2's. I guess you could try them, and see what happens?

I would bet you get a CEL though. www.oxygensensors.com is about the cheapest place I can think of. Unless then sell them brand new on ebay
Scott

 

[Nagash01WS6]

Hell they look the same to me.

Just like on the Trans Am... it appears the post and pre cat sensors are the same. I had them out at the same time... one was just $27 less.

So I exchanged them.

We'll see tomorrow after I swap them in the morning if I get any codes. I dont imagine I will.

 

[kozo_1]

The back two are MIL sensors on the 96 and up cars OBD 2 system