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Ask Wolfgang Your Own Question
Wolfgang, ASE Certified Technician
Category: Audi
Satisfied Customers: 5675
Experience:  Owner at Eurocar Diagnositcs
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Have 2012 Audi A6 Had Audi do with the engine modification

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have 2012 Audi A6
Had Audi do with the engine modification for the emission saga they got into in USA
Now I have ECM fault 4892 (sporadic )
is there any relationship between Nox modification and this engine fault

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The scan test was there any 5 digit code or a Pxxxx fault stored ?

I want to verify the 4892 fault because this is a hexidecimal fault that may be translated wrong !!


In the spare tire area is a 3x5 white options sticker. Can you take a pic and post the pic here to get factory info to assist. Thanks

Customer: replied 1 year ago.
Acknowledge your response
Will in the morning try to find and get a picture of options paper you refer to and send it with P xxxxx code requestedRegards
Chria Larkin

Thank you!!

Customer: replied 1 year ago.
Good Morning BartI sent the below msg in reply to your email but I have no replyAs requested
ECM details are 4892 P040300 exhaust gas recirculation circuit (01100000 passive / sporadic)
and the white paper in the spare wheel compartment is included as an attachmentHope have covered everything adequatelyI hope the attachment is well attached !
Best regardsAttachments area

no it has no relation to the NOX sensor modification . the egr is way before the NOX sensor . most likely the egr assy needs to be replaced its electrically operated . tends to stick or the motor drawing too much amps.

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