AF#3 (Rear O2 sensor) correction limits

Ders · **Posted:** Wed Dec 14, 2016 4:35 am

Hi guys

Could someone please identify these tables in A2ZJ500H?

Thanks

td-d · **Posted:** Wed Dec 14, 2016 3:36 pm

Ders wrote:

Hi guys

Could someone please identify these tables in A2ZJ500H?

Thanks

Code:

OM:0005DFBC AF3_Adder_Remove:.float 0.00049999997  
ROM:0005DFC0 AF3_Adder_Add:  .float 0.00034999999    

ROM:00027334 Closed_loop_fueling_target_comp_RearO2:.float 0.5 
ROM:00027338 flt_27338:      .float -0.5   

Ders · **Posted:** Wed Dec 14, 2016 6:05 pm

Awesome, cheers. Donated

redwagon · **Posted:** Mon Dec 26, 2016 11:10 pm

Can I get the addresses for A4SD900B please?

h82lose91 · **Joined:** Thu Feb 23, 2012 5:16 pm **Posts:** 36

Can someone give me the proper addresses for AE5T110V, 2016 USDM STi

Bamofo · **Joined:** Mon Jul 02, 2007 7:46 am **Posts:** 430

h82lose91 wrote:

Can someone give me the proper addresses for AE5T110V, 2016 USDM STi

AF 3 Correction Limits - 3c9a4
AF 3 CL Target Comp Limits - 3ae24

TD to confirm but im pretty sure. Give it a shot and monitor AF3.

td-d · **Posted:** Tue Jan 31, 2017 8:04 am

Correct.

Bamofo · **Joined:** Mon Jul 02, 2007 7:46 am **Posts:** 430

Since your online TD, I pinged you the 04-06 Rear O2 settings and adders. If you confirm these ill push them to my github.

04 STI
AF 3 Correction Adder (Increase) - 5bb48
AF 3 Correction Adder (decrease) - 5bb44

05STi - a2zjb11j

AF 3 Correction Adder (Increase) - c5e3c
AF 3 Correction Adder (decrease) - c5e38
AF 3 Correction Limits -27f2c
AF 3 CL Target Compensation Limits - 2a3e8

06 STI -

AF 3 Correction Adder (Increase) - c5e28
AF 3 Correction Adder (decrease) - c5e24
AF 3 Correction Limits - 28c98
AF 3 CL Target Compensation Limits - 2b154

h82lose91 · **Joined:** Thu Feb 23, 2012 5:16 pm **Posts:** 36

Thanks, you guys are awesome!

td-d · **Posted:** Wed Feb 01, 2017 11:14 am

So - turns out in the older roms where the adders are used, there's a second set of adders based on TPS % in a 2D, 9 cell table. Didn't see it, since I rarely come across these older roms.

Add this to the 32bit base (I'll also upload to github)

Code:

   <scaling name="AF3_Adder2" units="units" toexpr="x*0.000015258789" frexpr="x/0.000015258789" format="%.6f" min="0" max="255" inc="1e-05" storagetype="uint16" endian="big"/>

   
   <table name="AF 3 Correction Adder (Increase) B" category="ALPHA AF 3 (Rear O2 Sensor)" type="2D" level="1" scaling="AF3_Adder2">
      <table name="TPS Opening %" type="Y Axis" elements="9" scaling="TargetThrottlePlateOpeningAngle(%)1"/>
   </table>

   <table name="AF 3 Correction Adder (Decrease)" category="ALPHA AF 3 (Rear O2 Sensor)" type="2D" level="1" scaling="AF3_Adder2">
      <table name="TPS Opening %" type="Y Axis" elements="9" scaling="TargetThrottlePlateOpeningAngle(%)1"/>
   </table>

and for AZ2J500F.xml

Code:

   <table name="AF 3 Correction Adder (Increase) B" address="53d9c">
      <table name="TPS Opening %" address="53d78"/>
   </table>

   <table name="AF 3 Correction Adder (Decrease) B" address="53dd4">
      <table name="TPS Opening %" address="53db0"/>
   </table>

Bamofo · **Joined:** Mon Jul 02, 2007 7:46 am **Posts:** 430

td-d wrote:

So - turns out in the older roms where the adders are used, there's a second set of adders based on TPS % in a 2D, 9 cell table. Didn't see it, since I rarely come across these older roms.

Add this to the 32bit base (I'll also upload to github)

Code:

   <scaling name="AF3_Adder2" units="units" toexpr="x*0.000015258789" frexpr="x/0.000015258789" format="%.6f" min="0" max="255" inc="1e-05" storagetype="uint16" endian="big"/>

   
   <table name="AF 3 Correction Adder (Increase) B" category="ALPHA AF 3 (Rear O2 Sensor)" type="2D" level="1" scaling="AF3_Adder2">
      <table name="TPS Opening %" type="Y Axis" elements="9" scaling="TargetThrottlePlateOpeningAngle(%)1"/>
   </table>

   <table name="AF 3 Correction Adder (Decrease)" category="ALPHA AF 3 (Rear O2 Sensor)" type="2D" level="1" scaling="AF3_Adder2">
      <table name="TPS Opening %" type="Y Axis" elements="9" scaling="TargetThrottlePlateOpeningAngle(%)1"/>
   </table>

and for AZ2J500F.xml

Code:

   <table name="AF 3 Correction Adder (Increase) B" address="53d9c">
      <table name="TPS Opening %" address="53d78"/>
   </table>

   <table name="AF 3 Correction Adder (Decrease) B" address="53dd4">
      <table name="TPS Opening %" address="53db0"/>
   </table>

Will do that today. Can you confirm i matched up the stuff in my previous post correctly for the 04-06?

I am starting to see a new group of kids buying these as their first/second car... so it keeps coming up unfortunatly... 150k-200k miles and they want it wide open...

roziV · **Joined:** Sat Oct 29, 2016 5:40 pm **Posts:** 83

I just tested it on my forester xt 04 A2ZJ500F.

Thanks to Oren for finding this stuff for me and waste a lot of time to find them!!! It worked great when I zeroed the tables.

h82lose91 · **Joined:** Thu Feb 23, 2012 5:16 pm **Posts:** 36

So i zerod out the two tables listed for the 2016 STi and i still have some sort of learning going on. AF Learning 3 Stays at 0, but overt time my afr richens up a full point at WOT. Off a fresh reset car runs great and afr is perfect. Is this something else i need to adjust or table that needs to be tracked down?

td-d · **Posted:** Sat Feb 04, 2017 5:45 pm

That rom also has AF3 learning thresholds - zero those.

3D4BC AF3_Learning_Thresholds

h82lose91 · **Joined:** Thu Feb 23, 2012 5:16 pm **Posts:** 36

I added that address, thats the min address correct? I have a value of .50 Is there also a max address like the other roms?

RomRaider

AF#3 (Rear O2 sensor) correction limits

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