NOX Bank1 P2200 - Electrical Fault

Hello everyone,
I replaced the DPF (Diesel Particulate Filter) on my T6 CXHA engine at 314,000 kilometers.
After driving 140km, the MKL light illuminates. A fault code P2200, indicating an electrical issue with the NOX sensor bank 1, was found using VCDS 32137.
Is this the sensor located after the DPF, requiring a 22mm wrench?
How can I check the oxygen sensors using VCDS? Thank you for your help. Best regards, Wolfgang.

Hello,

I don't quite understand the problem.
Check the wiring harness/connector. If nothing is visible, clear the error codes, start the engine, and then gently wiggle or move each cable individually.

Then you can check the error memory to see if the problem is with the cable or the sensor itself.

Best regards, Rainer.

Hello Rainer,
Thank you for your help.

Hello everyone in the forum,
NOX sensor installed by Metzger.
T6 is running again.
Best regards, Wolfgang.

Schmierpfote wrote:

Hello to the forum, NOX sensor installed by Metzger. T6 is running again. Greetings Wolfgang

Thank you for your feedback!

Was was the outage foreshadowed? And is the NOx reduction now working at an adequate rate?

Hello Rainer,
The DPF contained 128.8 grams of oil ash. The maximum load according to VCDS is 110 grams. No error messages were received.
Therefore, the DPF was replaced and the old sensors were reinstalled.
See my question in the forum on November 25, 2024, at 20:34.
Best regards, Wolfgang.