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2000 Audi A4 Quattro 2.8L Cat Problem
Posted to European Driveability on 12/16/2004 19 Replies

2 codes present p0421 cat efficiency bank 1 and p043 cat efficiency bank 2. codes return about 3 month's after clearing codes. car runs fine. no complaints. is it possible that both cats are bad after only 68,000 miles.

19 Replies Received (View Replies)

  Related Documents & Media  2000 Audi A4 Quattro

 
Message Closed w/FIX

car Vehicle Data

2000 Audi A4 Quattro

VIN WAUDH68D1Y
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsCat Problem
OccursEvery Couple of Months

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
P0431Catalyst Efficiency Below Normal (Bank 2)
Message Closed w/FIX

car Vehicle Data

2000 Audi A4 Quattro

VIN WAUDH68D1Y
Engine2.8 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsCat Problem
OccursEvery Couple of Months

Trouble Codes

P0421Catalytic Converter Efficiency (Bank 1)
P0431Catalyst Efficiency Below Normal (Bank 2)