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codes p0420 and p0430 on my a4 2.4 v6

   
Old May 12, 2012 | 03:14 PM
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scanny1's Avatar
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Default codes p0420 and p0430 on my a4 2.4 v6
i have these codes come up p0430 and p0420 on my a4 2.4 v6 saying catalyst below effeceincy ,but cant see how both would come up at the same time whats the odds if the catayst have gone .any ideas
 
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Old May 13, 2012 | 10:46 AM
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Dan1969's Avatar
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I get them randomly, it's usually the gas, better quality gas, or it could be your O2 sensor.
 
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Old May 14, 2012 | 12:36 PM
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looks like ur cats dumped you. p0420 is your cat. U can either try to use a spacer and new 02 sensor orr get a new cat orrrr get a hfc. the v6 has two cats right dan?
 
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Old May 14, 2012 | 12:57 PM
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what do you mean hfc?
 
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Old May 15, 2012 | 01:20 PM
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high flow cat. Those sometimes stop the cell but most of the time u need a spacer to rid it of that. Unless u buy a brand new cat from audi. Which is $$$$$$$$$!!!
 
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Old Mar 25, 2014 | 09:44 PM
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What and where do you put a spacer?
 
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Old Mar 26, 2014 | 11:26 AM
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u put the spacer inbetween the 02 sensor and the cat.
 
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