How can I unplug the O2 sensors that go into the Cats?
 

Where in the engine bay can I do this. I want to pull mine out all together. Since I dont run cats might as well.

The rear 2 plugs should be the brown and green connectors on the firewall behind the accordian tube

hmm I disconnected those but I still got this..
 

2 Faults Found:
17530 - Oxygen (Lambda) Sensor Heating: B2 S2: Open Circuit
P1122 - 35-00 - -
17526 - Oxygen (Lambda) Sensor Heating: B1 S2: Open Circuit
P1118 - 35-00 - -


They didnt used to show up since the stge 3 software hides them or something.

Because now there is no current flowing though the system. I wonder if some kind of loopback could
 

be used to make it think the sensors are still intact.

well I never got these before, then this summer I started getting them.
 

I wonder if the connectors are bad, they plugged in just not into the cats.

The complete sensor is plugged in, tied up somewhere?
 

So the sensor element is exposed? If thats the case it's probably got fried from getting wet and so on. Or did I totally miss what you said?

ah good point.. I just figured since the software doesnt look for that code
 

it would ignore it no matter what. I guess I could get some new O2 sensors to test this theory out. Cant we use the VW ones?

Yep. but the VW ones use a different connector. You have to repin or splice the old connector.
 

VW number 06A906262Q should be around 25~35 bucks a piece.

I think I am gonn hook the new ones up and just leave the in the engine bay<m>
 

so they can stay dry. I guess as long as the ECU sees something there its happy. Thanks again. I've been pulling my hair out on this one. BTW is that the green and brown connector in the engine bay?

Yep. The green and brown ones are the secondary 02's