p2A00.A/F sensor circuit range/performance (bank 1, sensor 1)
p2A03.A/F sensor circuit range/performance (bank 1, sensor 1)

I got these codes on my car. Just double checking these are the o2 sensors connected directly to the cats?...I installed Berk hi flo cats and the passenger side sensors was extremely hard to get off and I'm sure it got a lil damaged during the switch out..the threads were off on it while unscrewing it. I'm in the middle of getting car tuned with up rev osiris and needed to fix this CEL to have car running good again. Thanks for all your help forum members in advance! You guys and girls are awesome

 

Just looking for anyone that can show me what to buy which sensor

 

Bump

 

Looking for a graphic for you but the first code is one I am currently experiencing. It is a pre-cat O2 sensor on the drivers side (P2A00). I wouldn't recommend anything other then OEM as a replacement for this.

Bank one means same side as cylinder #1 aka drivers side. Sensor one means first sensor in line to end of exhaust. Many things on the car follow this nomenclature.

 

Thank you urbanengineer!! Now my next question would this be the o2 sensor that connects directly to my hi flo cat berks? Or the PITA ones that are by the engines? Thanks again man you really helped me so far

 

By the engine. Bank 1.

Bank 2 is Cat/post-cat.

Btw, Irony of your name being ACE420 (P0420 - http://www.p0420.com)

 

Lmao nice catch there! And thanks man for the help! Now it's time to do research(DIY) and look up parts now

 

no no no no no no no. Bank 1 is the passenger side, Bank 2 is the driver side.
The ones closest to the engine are called the "upstream" or "primary", the ones farther away from the engine are called the "downstream" or "secondary"

 

So seymore4 then you know which ones to replace then with the code stated before?

 

You need to replace the sensor closest to the engine, in the header, on BOTH sides. You also have the codes listed wrong, one of them is for Bank 2. The other possible explanation for them would be a large exhaust leak around the B pipes. If you had trouble getting the secondary O2's out when you installed the HFC and it damaged the threads so its not seating correctly and exhaust is escaping out the hole that could also cause it.

Send me a datalog and I will be able to tell if the sensors are shot or not

 

Ok seymore when I get off work I'll hook up the up rev cable and get the codes again and logs

 

I would ask if you are certain but the drawings...

 

http://youtu.be/9rlyl09rkEc

http://youtu.be/7nDNO8PqbHg

These video are if diagnostics pls anyone help me! This is getting frustrating...and I just replaced my o2 sensor downstream on passenger side

 

Forgot to mention that when I took out the original sensor a little while ago..it was completely black too...way different from when I changed the cats out from the first time

 

Still waiting on those datalogs...