× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2001 Audi A6 Quattro 2.7L MIL Lamp on
Posted to European Driveability on 4/16/2008 6 Replies

The cats on this car are not damaged and appear to be working ok...Is there an Audi tech who has heard of a Service Bulletin that corrects this problen with a software upgrade to the ECM? We understand that that Basically this means that the oxygen sensor down...

6 Replies Received (View Replies)

  Related Documents & Media  2001 Audi A6 Quattro

 
Message Closed w/Summary

car Vehicle Data

2001 Audi A6 Quattro

VIN WAUED64B01
Engine2.7 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / motronic
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
Message Closed w/Summary

car Vehicle Data

2001 Audi A6 Quattro

VIN WAUED64B01
Engine2.7 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / motronic
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)