AF#3 (Rear O2 sensor) correction limits

endrswrd · **Joined:** Thu Oct 25, 2012 2:09 pm **Posts:** 49

Thank you very much. Will be doing this!

Also,

Can I get the memory locations of the rear o2 modifiers and A/f 3 correction for AE5IB00V 2011 Sti MT.

I shouldnt need to touch AF/3 learning correct? as it doesnt seem to populate from what I have read.....

td-d · **Posted:** Mon Mar 18, 2013 4:17 pm

endrswrd wrote:

Thank you very much. Will be doing this!

Also,

Can I get the memory locations of the rear o2 modifiers and A/f 3 correction for AE5IB00V 2011 Sti MT.

I shouldnt need to touch AF/3 learning correct? as it doesnt seem to populate from what I have read.....

Sure:

Code:

ROM:00032F78 Rear_O2_comps:  .float 0.5
ROM:00034B50 AF3_Limits:     .float 0.5

Many of the roms don't have af3 learning - in any case, AF3 correction deals it.

endrswrd · **Joined:** Thu Oct 25, 2012 2:09 pm **Posts:** 49

The rear o2 lambda modifiers worked with the template but the AF/3 correction didnt.

Edit: I got it working. Apparently what I thought was just a table label was some sort of referenced variable.

MFB · **Posted:** Tue Mar 26, 2013 8:55 pm

May I have rear 02 and af3 learning address for the ff:

32 bit
EP5D202X
EP5D202N
EP5D700X
EP5F300T

thanks!

crippsdr · **Posted:** Fri Mar 29, 2013 12:21 am

Can someone confirm this is correct?

E2VG212E

Address: 2f78c

throttlehappy · **Posted:** Sun Mar 31, 2013 6:23 am

AZ1G900O - MY11/12 Forester 5MT XT - <table name="AF 3 Correction Limits" address="2FE4C"/>
AZ1G900C - MY11/12 WRX MT - <table name="AF 3 Correction Limits" address="2FE4C"/>

spectre9 · **Posted:** Tue Apr 02, 2013 7:49 pm

I just got my OP 2.0 for my 08 spec.b. I definitely need to examine my o2 sensor addresses as the front was just replaced and it doesnt' seem to be learning from the rear o2 so the front AFM is going way off.

Anyone have these rear o2 and af/3 values for the A2TB001L 08 USDM spec.b?

(I once had IDA, when hacking the iphone, but haven't had a copy in years. I must think about getting back into that part!)

txv611 · **Joined:** Mon Dec 17, 2012 2:54 am **Posts:** 28

Hi Guys,

I feel like an idiot. I read thru the entire thread and i cant figure out how to enable AF#3 (Rear 02 Sensor) in my map in ECUFLASH.

I read ppl talking about "IDA" and "Address" but I cant figure how to do it.

Can someone help me with this?

I am getting really very very poor mileage and and I wan to try to disable Rear 02 sensor influence. Thanks

ROM attached

Subeboost · **Joined:** Tue Apr 24, 2007 2:33 am **Posts:** 182

How about JDM STi MY03?

A4TE002B

http://forums.openecu.org/download/file.php?id=486

80884 · **Joined:** Fri Jul 27, 2007 2:27 pm **Posts:** 8

From my understanding this will help steady the closed loop afr and also possibly help fuel consumption in closed loop?
If that's not right then can someone explain to me in simple terms why I would want to do this on an 04 sti with a catless exhaust?

If this is something I should do can I have the code and some instructions for - A2ZJ500J ?

2.5iguy · **Joined:** Wed May 08, 2013 10:05 pm **Posts:** 3

Greetings

I lost my other password/username for this forum and had to create a new one.

Can someone help me out with the locations for these tables in the two 07 2.5i Impreza MT roms attached? I am running catless and swapping a 07 2.5i motor into a 1975 914 also. I have two of these.

The car is catless. I'm currently running the E2UE102EL rom, but eventually am going to migrate my changes to the later rom, on a hunch some things were fixed.

Attachment:

2007_USDM_Impreza_2.5i_MT_E2UG002L.hex

Attachment:

latestbutengineload0doutAFRlearnrangchange.bin

Many thanks, and I will be donating some cash to this effort!

2.5iguy · **Joined:** Wed May 08, 2013 10:05 pm **Posts:** 3

Also, locations of 3F 00 00 00 bF 00 00 00

E2EU102L:

31310H
317DCH
32FD0h

E2UG002L:

314C8H
31994H
33188H

I don't want to mess something up :X I lack IDA .

BrandonspecB · **Posted:** Mon Jul 29, 2013 12:26 am

Could I get the rear o2 comp and AF3 addresses for A2UG000L?

Thanks!

td-d · **Posted:** Tue Jul 30, 2013 5:23 am

bkatter wrote:

AF3 addresses for A2UG000L?

Thanks!

Code:

ROM:00033CA4 AF3_Correction_Limits:.float 0.5

MFB · **Posted:** Wed Jul 31, 2013 8:51 am

Requesting for A8DK100Z address for af3

RomRaider

AF#3 (Rear O2 sensor) correction limits

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