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Author Topic: Complete aftercat o2 sensor removal!  (Read 19622 times)
TTQS
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« Reply #15 on: December 24, 2011, 02:28:50 PM »

No. Coding it out is far, far easier and cheaper.

Did I read somewhere that you've got a B8 S4 and you're telling me you can't afford to replace a post-cat oxygen sensor?  Grin

Happy Christmas.

TTQS
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nyet
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« Reply #16 on: December 24, 2011, 06:05:52 PM »

I've long replaced them with wideband sensors for logging Smiley
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masterj
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« Reply #17 on: December 27, 2011, 08:51:08 AM »

Could anyone with dissasembly skills tell me if bits CLRHK is @ 121AC, CWDLSAHK @ 18613? Also where is CLRHKA?? Can't find it Sad Thanks
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« Reply #18 on: December 27, 2011, 01:41:11 PM »

Are the ones in the S4wiki wrong?
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rob.mwpropane
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« Reply #19 on: December 27, 2011, 01:55:19 PM »

Are the ones in the S4wiki wrong?

No, I don't think he/we have the correct addresses for them yet. Angry
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nyet
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« Reply #20 on: December 27, 2011, 02:50:45 PM »

So, yes, the ones in the S4 wiki are wrong? I'm very confused Sad
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Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
rob.mwpropane
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« Reply #21 on: December 27, 2011, 02:58:29 PM »

This is for VW 1.8t Me7.5, not 7.1....unless I'm missing something?
« Last Edit: December 27, 2011, 03:00:09 PM by rob.mwpropane » Logged

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masterj
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« Reply #22 on: December 27, 2011, 03:26:31 PM »

So, yes, the ones in the S4 wiki are wrong? I'm very confused Sad

Only bits in 18xxx area are similar in every ME 7th class ECU, every other map can be scattered everywhere and to find it (especially 1bit maps) are freakin' hard... Smiley

So, in the end I found two possible maps, but am not sure if they're right and only people with dissasembler skills can help me here...
« Last Edit: December 27, 2011, 03:28:37 PM by masterj » Logged

nyet
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« Reply #23 on: December 27, 2011, 05:13:05 PM »

This is for VW 1.8t Me7.5, not 7.1....unless I'm missing something?

Ah. Ok. No its my bad. I had no idea he wasn't talking about ME7.1
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Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
rob.mwpropane
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« Reply #24 on: December 27, 2011, 06:07:51 PM »

This is for VW 1.8t Me7.5, not 7.1....unless I'm missing something?

Ah. Ok. No its my bad. I had no idea he wasn't talking about ME7.1

I kinda wish we were Roll Eyes Everything is so much more open with ME7.1!!! We'll get there, it's just with these bins, everything is switched from one to another. Not to bad for most maps, but it makes the constants/bits a pita Grin
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RaraK
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« Reply #25 on: December 28, 2011, 06:33:17 AM »

The b5 1.8t ecu's are a little different too, not as much info and damos out there, you really just gotta try and test things like i did Sad

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« Reply #26 on: December 28, 2011, 07:44:11 AM »

The b5 1.8t ecu's are a little different too, not as much info and damos out there, you really just gotta try and test things like i did Sad



Do you find that most of the early b5 line up when it comes to these bits? Example; I know the bin he is working on is almost identical to mine ,(2001 a4 b5 1.Cool just different offsets. In reality, if he gets this right, then so do I.

Rarak, any hints/clues/help you could give on the prokonal bits would be greatly appreciated. I don't usually have my hand out, but these function drive me nuts! Thanks. - if not, no worries, trial and error...
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masterj
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« Reply #27 on: December 28, 2011, 01:00:31 PM »

Finally managed to get readliness set... Had to zero out following bits:
CDHSH
CDHSHE
CDHSV
CDHSVE
CDKAT
CDLASH
CDLAPT
CDLATV
CDLSA
CDLSH
CDLSHV
CDLSV
CDSLS
CWKONLS
CWSLS
CWDLSAHK


Problem is: I'm still getting soft limp (as if my secondary o2 sensor errors were still there).
P1114 and P1118 - those two are making my ECU go into soft limp even when there's no DTCs stored (I have zeroed out CLAHSH and CLAHSHE!). Now I'm completely lost... Please check my bin file. Thanks
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« Reply #28 on: December 28, 2011, 05:53:57 PM »

Finally managed to get readliness set... Had to zero out following bits:
CDHSH
CDHSHE
CDHSV
CDHSVE
CDKAT
CDLASH
CDLAPT
CDLATV
CDLSA
CDLSH
CDLSHV
CDLSV
CDSLS
CWKONLS
CWSLS
CWDLSAHK


Problem is: I'm still getting soft limp (as if my secondary o2 sensor errors were still there).
P1114 and P1118 - those two are making my ECU go into soft limp even when there's no DTCs stored (I have zeroed out CLAHSH and CLAHSHE!). Now I'm completely lost... Please check my bin file. Thanks

Did you research all of those before you changed them? Some of them are not even O2 sensor related.

Have you considered that your "soft limp mode" might not be related to your rear O2's.
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masterj
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« Reply #29 on: December 29, 2011, 04:30:09 AM »

Finally managed to get readliness set... Had to zero out following bits:
CDHSH
CDHSHE
CDHSV
CDHSVE
CDKAT
CDLASH
CDLAPT
CDLATV
CDLSA
CDLSH
CDLSHV
CDLSV
CDSLS
CWKONLS
CWSLS
CWDLSAHK


Problem is: I'm still getting soft limp (as if my secondary o2 sensor errors were still there).
P1114 and P1118 - those two are making my ECU go into soft limp even when there's no DTCs stored (I have zeroed out CLAHSH and CLAHSHE!). Now I'm completely lost... Please check my bin file. Thanks

Did you research all of those before you changed them? Some of them are not even O2 sensor related.

Have you considered that your "soft limp mode" might not be related to your rear O2's.

then there should be some dtcs stored or something... ECU can't just go into soft limp without any additional information. I zeroed out only P1114 and P1118 error classes. That means, that every other error should be shown... By the way, when I disconnected my secondary o2 sensor (before editing bin) car went to soft limp too. So I'm thinking that disabling errors in 106** zone is only a way not to show them on vcds. They still affect performance as if they were there. And then another question rises: Where in bin file it is defined which DTC is responsible for soft limp (0.5 bar) and hard limp (0.3 bar)?
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