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2003 A4 3.0L Quattro, codes P0421 and P0431

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Old Oct 4, 2007 | 06:56 PM
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rerodriguez11's Avatar
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Default 2003 A4 3.0L Quattro, codes P0421 and P0431

Hello everyone; I have an 2003 A4 3.0L Quattro w/94,000 miles.

The check enginee light came on a few days after I have Firestone do the oil change on the car but I noticed that they didn't put any windshield fluid as the light came on after I try to use it 1 time and ran out of fluid.

I wentto Autozone and theypull up the codes P0421 and P0431.

Some thing aboutcatalyst issues.

Do anyone know about the codes and how to fix it without taking to the dealers? I'm out of warranty.

Thanks a lot in advance! [8D]

[IMG]local://upfiles/25881/8361184F5E7F48F8A2CC57567076436A.jpg[/IMG]
 
Old Oct 6, 2007 | 02:38 PM
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rerodriguez11's Avatar
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Default RE: 2003 A4 3.0L Quattro, codes P0421 and P0431

No body? Please!
 
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