I have a 2000 Audi A6 2.7T. I've had diagnostics done on it after the engine light came on. Initially I got Error P1113 and P1131 which means that both O2 Sensors after the catalytic converter were shot. I purchased 2 new original sensors on amazon.com (half the price from retail) and had them installed. I drove about 60 miles and the check engine light came back on and the diagnostics tell me that the P1113 still exists. It's been a recurring problem and I can't seem to get rid of it - any ideas?

 

Bad Cats????

 

not that i know of - there are no pending errors besides the P1113 and P1131 coming back every 50-60 miles after i reset the computer... i really have no idea what it could be... anybody?

 

17521
P1113
Bank1-Sensor1 Internal Resistance too High
Replace the before cat O2 sensor on the passenger's side
17539
P1131
Bank2-Sensor1 Internal Rsistance too High
Replace the before cat O2 sensor on the driver's side.
So go do it.

 

hey auditech - i already replaced the sensors with brand new genuine ones and the errors keep coming up. i also replaced the gas cap as i thought it might be bad and that oxygen was entering the gas chamber. now i get a new error in addition to the other two - p1177 - i have no idea what it means and why it's coming up - so as of now my recurring errors are:
p1113
p1131
p1177

please advise....

 

P1113 is Bank1-Sensor1 Internal Resistance too High which means the O2 sensor BEFORE the cat is bad on bank 1 not after the cats as you stated. Change the one before the cat on bank 1.

 

Does anyone know if this error will cause the vehicle to not start? I am getting an error that Bank2-Sensor1 Internal Resistance too High.