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Title: CDKAT 018CH software number 360854 Post by: ddillenger on May 23, 2013, 02:26:50 PM 00'd CDKAT, still getting catalyst efficiency codes. I can only assume CDKAT is incorrect, although everything I've checked indicates it is correct. Any experience? 181A1, original attached.
P0420 Title: Re: CDKAT 018CH software number 360854 Post by: ddillenger on May 23, 2013, 02:54:25 PM CDKAT
CDKATSP CDKATSPF and catalyst shows as VCDS passed, but p0420 persists. Anyone run into this? Title: Re: CDKAT 018CH software number 360854 Post by: prj on May 23, 2013, 03:23:27 PM I don't have issues on this sw with rear O2 deleted.
Title: Re: CDKAT 018CH software number 360854 Post by: ddillenger on May 23, 2013, 03:25:35 PM Well normally zero'ing cdkat is enough to kill cat diagnosis, but the p0420 persists. Any hints? I'm sure I'll get it on my own, but assuming we're not talking state secrets, LMK if I'm missing something.
Thanks guys. Title: Re: CDKAT 018CH software number 360854 Post by: prj on May 23, 2013, 03:27:00 PM IIRC just killed CDKAT, the Rear O2 related codewords as well as adjusted ESKONF, and I don't remember getting any codes.
I also set CWKONABG to 0 though... Title: Re: CDKAT 018CH software number 360854 Post by: amd is the best on May 24, 2013, 07:21:16 AM I removed the rear O2 and SAI on my mothers A4 by zeroing out the following:
CDKAT = 0 (O2) Location = 0x181A1 CWDLSAHK = 0 (O2) Location = 0x18613 CDSLS = 0 (SAI) Location = 0x181B0 Passed OBD inspection. Title: Re: CDKAT 018CH software number 360854 Post by: amd is the best on May 24, 2013, 07:31:39 AM Cat deleted and checksummed.
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