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2000 Audi A4 Quattro 2.8L Cat Problem
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.
FIX posted 12/31/2004
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Message Closed w/FIX
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Related Documents & Media | VIN | WAUDH68D1Y |
| Engine | 2.8 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Cat Problem |
| Occurs | Every Couple of Months |
Trouble Codes
| P0421 | Catalytic Converter Efficiency (Bank 1) |
| P0431 | Catalyst Efficiency Below Normal (Bank 2) |
Message Closed w/FIX
Vehicle Data
2000 Audi A4 Quattro
| VIN | WAUDH68D1Y |
| Engine | 2.8 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Cat Problem |
| Occurs | Every Couple of Months |
Trouble Codes
| P0421 | Catalytic Converter Efficiency (Bank 1) |
| P0431 | Catalyst Efficiency Below Normal (Bank 2) |
Video