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2010 Audi A5 Quattro 2.0L MIL Lamp on
The car came in with a P0420 and P0456 catalyst and very small evap leak. We did all the normal testing to make sure the cat was bad and then replaced the cat with a DEC part. The light came back on 2 days later. Has anyone had a bad DEC cat? What else could b...
FIX posted 3/6/2017
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Message Closed w/FIX
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20 Replies Received
20 Replies Received
Related Documents & Media | VIN | WAULFAFR7A |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | After 1 Day |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2010 Audi A5 Quattro
| VIN | WAULFAFR7A |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | After 1 Day |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video