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2000 Audi A4 Quattro 2.8L MIL Lamp on
Hello Group!!! This Audi has recurring codes P0421 and P0431. These are low cat eff. both sides. The system will go into readiness but the codes will return eventually. Before I go and replace cats and/or monitoring O2s I was wondering if anyone has seen this ...
FIX posted 4/1/2004
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Message Closed w/FIX
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12 Replies Received
12 Replies Received
Related Documents & Media | VIN | WAUDH28D5Y |
| Engine | 2.8 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Message Closed w/FIX
Vehicle Data
2000 Audi A4 Quattro
| VIN | WAUDH28D5Y |
| Engine | 2.8 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
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