i Have an issue with my 2004 Audi a6 2.7t. its an automatic with a BEL engine. i have recently changed the b1 s2 sensor due to code p1118 and p1114 but they still appear. I also was i tried swiping the sensors but it still shows b1 s2 with both codes. i Cleared the codes and they constantly come back. I really need help i havent been able to drive my car for 3 months due to this becuase it wont pass inspection due to the cel for these codes.

 

If you have already replaced the O2 sensor with an OE or aftermarket direct replacement and continue to get the same error code time and time again, it may be that the sensor itself is not bad. Have you checked the connector ends? Be sure that they are free of corrosion and/or rust and check to make sure that the wiring is not frayed or cut and that the terminals withing the connectors are still tight. If you do this and then reconnect the wiring connector I would suggest using some dielectric grease on the connection.

 

I didnt check if the connector are fried and also i tried to see if any voltage comes out the wires and they do so i dont think the wires are cut. And i read that dielectric grease isnt good to put on connecters becuase it can short the wires and could corrode the connector wire ends themself.

 

I am gonna get the ecu chipped so it wont show the rear 02 sensors. That was suggested from the guys at euro performance in clifton, nj. I am just wondering if it will pass inspection like that. Any ideas on that???