S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

Just wondering, is there any other K03 software that removes the cat CEL besides the APR stage 2+??

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Old Jan 13, 2006 | 08:00 AM
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Just wondering, is there any other K03 software that removes the cat CEL besides the APR stage 2+??
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Old Jan 13, 2006 | 08:02 AM
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At present I think only APR's code does so but there are other tuners that know how to do it.
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Old Jan 13, 2006 | 09:24 AM
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Default Just use the spark plug de-foulers, you put them in before your O2s this way they are moved back

just enough so that its equivalent to them being further downstream of the exhaust path, getting rid of the code. (I think thats why anyways, but Im not sure, do a search and you should find more details on how to do this).
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