O2 sensor(s)

[sherppa]

Hi you all. My '97 3.8l has the SES on. In the scanner appears a problem with the O2 sensor(s). My question is: how many O2 sensors does my camaro has? If more than 1, how can I know which is the problem one? (btw, I´m new in the forum) :cool:

[tkoforpresident]

Re: O2 sensor(s)

welcome.

your car has 2 o2 sensors, they are the 2 wire ones so they are a bit pricey (around 40$)

if you can't tell which one is bad i would just replace both of them, might as well.

[XLR8myV6]

Re: O2 sensor(s)

Scan should show you which bank the problem is coming from. My 97 3.8 has 3 or 4, can't remember. One on each side of the motor in the rear, and one or two after cat. Maybe wrong, I have 3 different camaros. 95,97,98.

[Pewter2K1]

Re: O2 sensor(s)

you will have 3 02 sensors.... one on each manifold, and one after the cat. converter... your scan will show either:

Bank 1 sensor 1: Driver side header
Bank 2 sensor 1: Passenger side
Bank 1/2 sensor 2: Post- Cat.

whether it be bank 1 or bank 2 AND Sensor 2 you know its your post cat sensor...

[1999V6]

Re: O2 sensor(s)

Does the above apply for a 1999 Firebird as well? I have P0155 02 Bank 2 sensor 1.

[RadRacer]

Re: O2 sensor(s)

Does the above apply for a 1999 Firebird as well? I have P0155 02 Bank 2 sensor 1.

passenger side O2 in the header

[1999V6]

Re: O2 sensor(s)

Thanks Rad it was that one.

[chris greene]

Re: O2 sensor(s)

my 97 has 4 O2 sensors. one on each header, one before the cat and on after the cat.

[tkoforpresident]

Re: O2 sensor(s)

my 97 has 4 O2 sensors. one on each header, one before the cat and on after the cat.

Emissions ftl :tdown:

[savagecamaro96]

Re: O2 sensor(s)

wait, then what are the 2 up near the TB?

[RadRacer]

Re: O2 sensor(s)

there aren't any O2s by the TB.....

[savagecamaro96]

Re: O2 sensor(s)

there aren't any O2s by the TB.....

i see that but thats not my question, i asked what they were.

[ssms5411]

Re: O2 sensor(s)

You have one on each manifold one before the CAT and one after the CAT. The is nothing near the TB. There is a coolant temp sensor below the TB.

[RadRacer]

Re: O2 sensor(s)

i see that but thats not my question, i asked what they were.

Well, you have to be abit more specific. 1) it will vary on your car; 99+ will have different sensors on the TB then 95.5-97 or 93-95. I'm going to take a wild guess and say you have a 96 :P 2) Have any pictures or could you be more descriptive of the sensors? There are numerous in that area.

I'm going to take a shot in the wind and say you're asking about the MAF sensor and the coolant temp sensor.

[Smoke Panther]

Re: O2 sensor(s)

i see that but thats not my question, i asked what they were.

MAF, IAT, EGR, etc..