I had the codes p1113 p1127 p1129 and p1131 so I replaced my bank 1 sensor 1 and now I only have the codes p1129, p1127, and p1131. Which o2 sensors are these codes? The other three sensors?

 

Look it up here.

Audi Trouble Codes

P1127 is Bank 1 (passenger side) too rich.
P1129 is Bank 2 (driver side) tow rich.
P1131 is Bank 2 O2 sensor resistance too high.

A question... Where did you get the new sensor?

 

Ok thanks. I bought the new o2 sensor from ecstuning.com

 

The reason that I was asking where you got the sensor was that mine from some cheap website turned out to be a bunk. It was a Bosch sensor, but it was doa. You can test the O2 sensor if you have a good enough multi-meter. To a search on the forum. There are a few discussions about that.

 

I had a similar issue with ordering an o2 sensor. I originally ordered one from carpartswherehouse.com and I ordered the right one but it looked different from the original so I changed it and the code didn't go away so I ordered it from ecstuning and it fixed the code. I now make sure I order from websites that I know about. I have heard about testing the o2 with a multi meter. You are looking for the correct voltage right?

 

You actually measure the resistance of the heater circuit to see if it is within the spec. Here is the link.

O2 Sensor heater circuit test

If you have VAGcom you can actually test the aging of the O2 sensor using measuring blocks. That probably is more accurate way of assessing the function of the o2 sensor.

FYI, our o2 sensors have both heating and measuring circuits. Your codes are probably due to the measuring data issue...