Cel Code After Installing AEM UEGO Wideband
 

I installed the AEM UEGO and everything seemed pretty straightforward but when i turned the car on i got a cel with this code * DTC P0031 HO2S Heater Circuit Low Voltage Bank 1 Sensor 1
i searched the forums to see what i did wrong, the sensor is in the downpipe after the turbo and before the cat in the exhaust, anyone know what i did wrong or is this normal?

Did you unplug anything?

Yeah...I got that code when i forgot to plug the primary 02 sensor back in on top!

I unplugged the oem sensor that was in the stock manifold/downpipe

Ok plug it back in. Thats the 02 sensor you absolutely must have.

Where did you put the sensor for the gauge?

You have to get a bung welded in on the s-pipe some where. Usually before the second 02 I think. Dont quote me on the location though please. But definetly not where you had it.

Would an O2 emulator work?

:doh:

I'm guessing you didn't read the AEM instructions???

No not for what he's trying to do. He needs a third physical location for this 02 sensor to sit.

I did read the instructions and was told that it was fine to swap out instead of welding another spot, but i guess that was poor information. Thanks for your help kikcaffine, I will get that welded tonight.

Why are you installing a Uego anyway...?

x2

Turbo

Oh snap, which one?

You're boosted and you can't figure out how to install a plug? I'm sorry but I can't wait to see what your reaction is going to be when your chargepiping comes loose or you blow the seal, lol.

Thats not nice to say. I boosted my car, fixed a ____ ton of problems, and I dont know where or how to weld that little bung in.

I know it's not nice to say, but I just know it will happen.

Say what you will, and I had my chargepiping come lose and fixed it fine along with some other bumps in the road, I had a question so i asked and got an answer you are in no way helpful in this thread

He usually isnt. Its just who he is. He just likes to feel like a big man on the internet by telling other people how stupid they are and saying that they will fail at what they are doing. Let him do his thing.