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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 7:15 am 
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dj-phoenixx wrote:
Hi,
anyone know the adresses in my A2WC522 Rom? I've removed my downpipe cat. So I must make some small changes.


2DF2C

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 2:45 pm 
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Joined: Sat Feb 13, 2010 3:33 pm
Posts: 31
Location: Germany
Hi,
thx for your answear. In my 1. flash I've changed the setting to 10. I've seen values up to 70 in my logging.
Ok after 1. flash I set it to 5 and the same shi*. What is wrong?
I'vent the IDA Program, so I can't look for myself.

Greets
Marcel

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:00 pm 
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Location: Johannesburg, South Africa
dj-phoenixx wrote:
Hi,
thx for your answear. In my 1. flash I've changed the setting to 10. I've seen values up to 70 in my logging.
Ok after 1. flash I set it to 5 and the same shi*. What is wrong?
I'vent the IDA Program, so I can't look for myself.

Greets
Marcel


Values up to 70? I'm not sure you're logging AF3 correction then... the most that you generally see on AF3 correction is 3% to -3%. a -70% correction would take an AFR of 14.7 into the 4's - that doesn't make sense at all.

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:03 pm 
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Joined: Tue Feb 19, 2008 11:02 pm
Posts: 244
Location: Broomfield, Colorado
Probably logging 16 bit instead of 32 bit????

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:09 pm 
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Joined: Sat Feb 13, 2010 3:33 pm
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Location: Germany
AFR is 14,5. And he would go up and down. I've had an closed cat last week and I don't know why. The AF#1 correction is at idle +3,12. See attach for details. It is an log from last week.

I've logged with ecuEdit and Romraider. It is every time an -50 up to -70.


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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:20 pm 
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Location: Broomfield, Colorado
dj-phoenixx wrote:
AFR is 14,5. And he would go up and down. I've had an closed cat last week and I don't know why. The AF#1 correction is at idle +3,12. See attach for details. It is an log from last week.

I've logged with ecuEdit and Romraider. It is every time an -50 up to -70.

Can you post a log with AF correction #3. I know if you log the 16 bit AFC #3 it will show numbers like 50-70 etc... you need to choose the 32 bit version of the parameter to read it properly.

Older logger definitions didnt have the 16 bit / 32 bit distinction.

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:25 pm 
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Location: Germany
Wait a moment. I'ld make it with romraider.

Attach is my car mod list.


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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:26 pm 
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Thanks eminehart, didn't think of that.

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:33 pm 
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Joined: Tue Feb 19, 2008 11:02 pm
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Location: Broomfield, Colorado
You don't know how many people send me logs with every AFC and AFL parameter logged :D
I see the weird numbers like that in AFC 3 all the time.

Basically if it just says AFC 3 then its the 16 bit version. He will need the latest logger defs to see the 16bit or 32bit option.

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 3:53 pm 
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Location: Germany
Holy shi*, sorry.

I've make 2 logs one with ecuedit (mostly work with it) and the other is with romraider. eminehart is in right I've logged the 16 bit. I dont know why. Because I've flashed my car every time with 32 bit. And logging... Oh no what a mistake.
It is 2 miles after reflash with AF#3 set to -5% up to +5%. But it is not my effect. I woul'd remove the huge AF Correction and the AF Ratio swinging.

Greets Marcel


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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Tue Jul 03, 2012 4:33 pm 
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Location: Johannesburg, South Africa
-5% and 5% won't do it - in all my logging, I never saw the AF3 correction go above 3%. Zero the tables, and you'll likely see the swinging stop (it's part of the cat efficiency requirements, lean/rich - there's a thread on it somewhere here).

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Wed Jul 04, 2012 12:52 am 
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Joined: Sat Feb 12, 2011 7:27 pm
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Location: Northern NSW
td-d wrote:
-5% and 5% won't do it - in all my logging, I never saw the AF3 correction go above 3%. Zero the tables, and you'll likely see the swinging stop (it's part of the cat efficiency requirements, lean/rich - there's a thread on it somewhere here).


As above. Keeping in mind that at 11:1 AFR, 3% drift is 0.5 AFR


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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Wed Jul 04, 2012 2:34 pm 
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Joined: Sat Feb 13, 2010 3:33 pm
Posts: 31
Location: Germany
Hi,
I've zero the table totay and flashed. There is no swinging AFR now at idle. Tomorrow I'll make an testdrive to my work. It is 32 miles. After the I would check the log. And I can make an Roughnes test. Because I don't know why my cat come closed. Maybe it is an consequence of my faulty injector in cyl 4.

Can anyone say me the adress of an A4SE800D Map?

Greets and many thanks
Marcel

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2005 USDM Legacy GT TwinScroll 6MT DCCD
1999 BMW 323ti


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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Wed Jul 04, 2012 2:52 pm 
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Joined: Thu May 20, 2010 4:01 am
Posts: 3117
Location: Johannesburg, South Africa
dj-phoenixx wrote:
Hi,
Can anyone say me the adress of an A4SE800D Map?

Greets and many thanks
Marcel


If you can provide a rom, I'll look for it.

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 Post subject: Re: AF#3 (Rear O2 sensor) correction limits
PostPosted: Wed Jul 04, 2012 2:59 pm 
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Joined: Sat Feb 13, 2010 3:33 pm
Posts: 31
Location: Germany
td-d wrote:
If you can provide a rom, I'll look for it.


PM is send. Many thanks to you.

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1999 BMW 323ti


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