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 Post subject: Re: Legacy 2008 2.5i edm def needed
PostPosted: Thu Jan 26, 2023 7:12 pm 
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Senior Member

Joined: Sat Feb 12, 2011 7:27 pm
Posts: 2031
Location: Northern NSW
glzg947 wrote:
I want to disable the ecology: catalyst control, EGR. I want the engine to run normally, not rich. The rear oxygen sensor remains in the car. Someday it will fail and the ECU will try to adjust the mixture according to its indications.
If I turn off only the error code (CEL), then I will not see only the indication.
But the ECU will correct the mixture, but it must assume that nothing happened

In the end, it turns out that yes - I'm kind of trying to start the engine without rear O2
At the same time, the ECU should consider that it never had rear O2 and should not correct anything.
it turns out such a situation


Then you need the Rear O2 Correction Limits and Learning Limits disabled


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 Post subject: Re: Legacy 2008 2.5i edm def needed
PostPosted: Sun Jan 29, 2023 1:54 am 
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Newbie

Joined: Mon Jan 09, 2023 6:24 am
Posts: 3
I still have a few questions (sorry, I'm still learning ;) )

1) Do I understand correctly, that the parameters "AF 3 CL Target Compensation Limits" and "AF 3 Learning Limits" from the 32BITBASE.xml file (standard) from the SubaruDefs-Alpha branch are not the same?
In addition to setting zero in the "AF 3 Correction Limits" and "AF 3 Learning Limits" parameters, do you need to do something with the parameters:
"AF 3 Correction Adder (Increase)"
"AF 3 Correction Adder (Decrease)"
"AF 3 CL Target Compensation Limits"
?
It will be enough to set the Correction and Learning limits to zero
+ disable CEL
"(P0037) REAR O2 SENSOR LOW INPUT"
"(P0038) REAR O2 SENSOR HIGH INPUT"
"(P0137) REAR O2 SENSOR LOW VOLTAGE"
"(P0138) REAR O2 SENSOR HIGH VOLTAGE"
"(P0139) REAR O2 SENSOR SLOW RESPONSE"
"(P0140) REAR O2 SENSOR NO ACTIVITY"
"(P0141) REAR O2 SENSOR MALFUNCTION"
for disable rear O2?

2) Do you know the addresses of the parameters Correction and Learning limits for ROM E2TB101L?
Where, how, from whom and how can they be found out? What software? I have ScoobyRom, but I don't know how to use it yet... :(
Does this post AF#3 (Rear O2 sensor) correction limits contain all the known information on finding addresses, or is there something else to look for?

3) To disable the EGR valve, will it be enough to set the Steps in the EGR Valve A / B parameters to zero + disable the EGR related CELs (P0400 and P1492-P1499)?
I know the EGR Valve addresses in the ROM E2TB101L and have added its processing to the 32BITBASE.xml file
Code:
<scaling name="Steps" units="Steps" toexpr="x" frexpr="x" format="%.2f" min="0" max="35" inc="1" storagetype="uint16" endian="big"/>

<table name="EGR Valve A" category="EGR Valve" type="3D" level="1" scaling="Steps">
    <table name="Engine Load" type="X Axis" elements="10" scaling="g/rev"/>
    <table name="Engine Speed" type="Y Axis" elements="21" scaling="RPM"/>
</table>


Or is this not enough and something else is needed?


Attachments:
EGR Table.JPG
EGR Table.JPG [ 175.67 KiB | Viewed 238 times ]
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 Post subject: Re: Legacy 2008 2.5i edm def needed
PostPosted: Sat Jul 15, 2023 4:57 am 
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Senior Member

Joined: Sat Feb 12, 2011 7:27 pm
Posts: 2031
Location: Northern NSW
<table name="AF 3 Correction Limits" address="36070" type="2D" level="1" scaling="A/FLearning#1Limits(%)">
<table name="X" type="Static X Axis" elements="2"/>
</table>

<table name="AF 3 Learning Limits" address="34794" type="2D" level="1" scaling="A/FLearning#1Limits(%)">
<table name="X" type="Static X Axis" elements="2"/>


Then disable the CEL's for the Rear O2


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 Post subject: Re: Legacy 2008 2.5i edm def needed
PostPosted: Wed Nov 05, 2025 7:39 am 
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Newbie

Joined: Wed Nov 05, 2025 2:51 am
Posts: 1
throttlehappy wrote:
<table name="AF 3 Correction Limits" address="36070" type="2D" level="1" scaling="A/FLearning#1Limits(%)">
<table name="X" type="Static X Axis" elements="2"/>
</table>

<table name="AF 3 Learning Limits" address="34794" type="2D" level="1" scaling="A/FLearning#1Limits(%)">
<table name="X" type="Static X Axis" elements="2"/>


Then disable the CEL's for the Rear O2



Hello. Could you please tell me which addresses are correct? and do you have the address value "Rear O2 Compensation"? In another post, you indicated these for the E2TB101L:
Quote:
E2TB101L

<table name="AF 3 Correction Limits" address="2B74C" type="2D" level="1" scaling="A/FLearning#1Limits(%)">
<table name="X" type="Static X Axis" elements="2"/>
</table>

<table name="AF 3 Learning Limits" address="29010" type="2D" level="1" scaling="A/FLearning#1Limits(%)">
<table name="X" type="Static X Axis" elements="2"/>


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