Hello all -
This is my first question so bear with me and let me explain/ask.
I have a 1995 Honda CIVIC 1.6 VTEC 2 dr coupe. It's got 199k miles on it. A week ago, emissions (in Atlanta, GA) failed. I was told that it could be oxygen sensor and/or the cat converter.

I asked around and found out that shops will charge about 90.00 to just read the code. AUTOZONE does not read the code as it is OBD1 .

I am thinking about replacing the Oxygen sensor myself (I know where it is and am not technically or mechanically challenged and think that I can handle this myself)

I am thinking I will replace the oxygen sensor and then if emissions still fail then I will know it's the cat converter.

My questions :
1- I thought there was only one Oxygen Sensor (under the hood and not under the car in the back) on 1995 CIVIC but one of the mechanic has told me that there are two and he does not know (without reading the OBD1 which one to replace)... He will charge 90.00 to read the code... How many oxygen sensors are there on this car ?

2 - If there is one, I will change it myself but want to know which brand (after market) I should go with.. I don't want the check engine light to come on (I've heard that it does with some sensors)

Thank you all in advance for reading and for helping me out with this.

. Here's how to check for codes:

https://www.askmehelpdesk.com/cars-t...tml#post832012

. Here's how to replace the oxygen sensor on your car:

https://www.askmehelpdesk.com/cars-t...tml#post223376

I think you only have one oxygen sensor. Only use a Denso sensor. Those sold under the Standard name should be Denso, but at a lower price.