Fuel Pump Duty High and Medium Tables

td-d · **Posted:** Wed Aug 01, 2012 4:29 pm

I found these tables some time back whilst scratching around the fuel pump duty code, but did not go back to them till recently.

These two tables are used to switch from the various fuel pump duty thresholds defined (low, medium and high) and are based on battery voltage and injector duty cycle. As would be expected, the parameters input into the table that calculate IDC are IPW and RPMs. When the IDC values exceeds the value in the high tables, the high duty is used, when exceeding the medium tables values, but less than the high table, medium duty is used. When below the medium table values, low will be used.

For AZ1G101N, the code is as follows:

Code:

   <scaling name="IDC" units="Injector Duty Cycle" toexpr="x*0.7371358727094787" frexpr="x/0.7371358727094787" format="%.2f" min="0" max="255" inc="1" storagetype="float" endian="big"/>
   <scaling name="Pressure (bar)" units="units" toexpr="x/750" frexpr="x*750" format="%.2f" min="0" max="255" inc="1" storagetype="float" endian="big"/>


   <table name="Fuel Pump Duty High Injector Duty Cycle" address="d0e5c" type="3D" level="1" scaling="IDC">
      <table name="Battery Voltage" address="d0e4c" type="X Axis" elements="2" scaling="rawecuvalue"/>
      <table name="Manifold Relative Pressure" address="d0e54" type="Y Axis" elements="2" scaling="Pressure (bar)"/>
   </table>

<table name="Fuel Pump Duty Medium Injector Duty Cycle" address="D0E7C" type="3D" level="1" scaling="IDC">
      <table name="Battery Voltage" address="D0E6C" type="X Axis" elements="2" scaling="rawecuvalue"/>
      <table name="Manifold Relative Pressure" address="D0E74" type="Y Axis" elements="2" scaling="Pressure (bar)"/>
   </table>

You could also use PSI absolute or PSI relative for the scaling - I prefer bar since I work in metric

If you're wondering where the 0.7371358727094787 in the scaling comes from, the code basically calculates it as follows:

IPW*9.4208488*RPM*0.00000011999998

So, if you consider that IDC is calculated as follows:

IDC = RPM * IPW / 1200

Then the scaling is (divided by 1000, since e.g. 1.4ms pulse width is 1400 in the ecu code):

=1/(9.4208488*0.00000011999998)/1200/1000

Anyways... that's an aside!

Relatively easy to find the tables, if you follow the X-refs back from the medium and high pump duty thresholds, you will see some tables:

Code:

00043AA4 off_43AA4:      .data.l Ram_Battery_Voltage ; DATA XREF: sub_43888+2r
ROM:00043AA4                                         ; sub_43932+38r
ROM:00043AA8 off_43AA8:      .data.l E_Manifold_Relative_Pressure_4byteExt_E113
ROM:00043AA8                                         ; DATA XREF: sub_43888+6r
ROM:00043AAC off_43AAC:      .data.l Table_Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle
ROM:00043AAC                                         ; DATA XREF: sub_43888+Ar
ROM:00043AB0 off_43AB0:      .data.l Fun_GetMapValue3D ; DATA XREF: sub_43888+Cr
ROM:00043AB4 off_43AB4:      .data.l unk_FFFF7DD4    ; DATA XREF: sub_43888+12r
ROM:00043AB8 flt_43AB8:      .float 100.0            ; DATA XREF: sub_43888+18o
ROM:00043ABC off_43ABC:      .data.l loc_825E        ; DATA XREF: sub_43888+2Cr
ROM:00043ABC                                         ; sub_438BA+70r
ROM:00043AC0 off_43AC0:      .data.l Ram_Fuel_Pump_Duty ; DATA XREF: sub_438BA+2r
ROM:00043AC0                                         ; sub_438BA:loc_4391Er
ROM:00043AC4 Fuel_Pump_Duty_Medium:.float 66.699997
ROM:00043AC8 Fuel_Pump_Duty_Low:.float 33.299999

Here you will find the high pump duty tables. If you follow the link to the table, you will find a 2 x 2 float based 3d table. The 2 x 2 below it is the medium duty :

Code:

00088024 Table_Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle:.data.w 2
ROM:00088024                                         ; DATA XREF: sub_43888+Ao
ROM:00088024                                         ; sub_43932:off_43AACo ...
ROM:00088026                 .data.w 2
ROM:00088028                 .data.l Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle_X_Axis
ROM:0008802C                 .data.l Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle_Y_Axis
ROM:00088030                 .data.l Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle ; Multiply by 0.73725 to get Cobb values.
ROM:00088034                 .data.l 0
ROM:00088038 Table_Fuel_Pump_duty_med_min_smoothed_inj_duty_cycle:.data.w 2
ROM:00088038                                         ; DATA XREF: sub_43CC2:loc_43DFEo
ROM:00088038                                         ; ROM:off_43E98o
ROM:0008803A                 .data.w 2
ROM:0008803C                 .data.l Fuel_Pump_duty_med_min_smoothed_inj_duty_cycle_X_Axis
ROM:00088040                 .data.l Fuel_Pump_duty_med_min_smoothed_inj_duty_cycle_Y_Axis
ROM:00088044                 .data.l Fuel_Pump_duty_med_min_smoothed_inj_duty_cycle
ROM:00088048                 .data.l 0

The IDC value is also put through the filtering routine:

Code:

00043DAA loc_43DAA:                              ; CODE XREF: sub_43CC2+40j
ROM:00043DAA                 mov.l   #flt_D0E2C, r2
ROM:00043DAC                 fmov.s  @r2, fr8
ROM:00043DAE                 fmul    fr8, fr15       ; IPW*9.4208488
ROM:00043DB0                 fmul    fr14, fr15      ; IPW*9.4208488*RPM
ROM:00043DB2                 mova    flt_43E7C, r0
ROM:00043DB4                 fmov.s  @r0, fr8
ROM:00043DB6                 fmul    fr8, fr15       ; IPW*9.4208488*RPM*0.00000011999998
ROM:00043DB8                 mov     #unk_FFFFFFE8, r0
ROM:00043DBA                 fmov.s  fr15, @(r0,r5)
ROM:00043DBC                 mov.l   #Func_Filter_Parameter, r2
ROM:00043DBE                 fmov.s  @(r0,r5), fr4
ROM:00043DC0                 mova    flt_43E84, r0
ROM:00043DC2                 fmov.s  @r0, fr7
ROM:00043DC4                 mov.l   #flt_D0E30, r6
ROM:00043DC6                 fmov.s  @r6, fr6
ROM:00043DC8                 mov     #unk_FFFFFFEC, r0
ROM:00043DCA                 jsr     @r2 ; Func_Filter_Parameter
ROM:00043DCC                 fmov.s  @(r0,r5), fr5
ROM:00043DCE                 mov.l   #unk_FFFF7DE4, r5
ROM:00043DD0                 mov     #unk_FFFFFFE4, r0 ; FFFF7DC8
ROM:00043DD2                 fmov.s  @(r0,r5), fr8
ROM:00043DD4                 fadd    fr8, fr0
ROM:00043DD6                 mov     #unk_FFFFFFEC, r0
ROM:00043DD8                 fmov.s  fr0, @(r0,r5)   ; FFFF7DD0
ROM:00043DDA                 fmov.s  @(r0,r5), fr14
ROM:00043DDC                 mov.l   #Table_Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle, r4
ROM:00043DDE                 mov.l   #Fun_GetMapValue3D, r2
ROM:00043DE0                 fmov    fr13, fr4
ROM:00043DE2                 jsr     @r2 ; Fun_GetMapValue3D
ROM:00043DE4                 fmov    fr12, fr5
ROM:00043DE6                 fcmp/gt fr14, fr0
ROM:00043DE8                 bt      loc_43DF0
ROM:00043DEA                 mov     #1, r0
ROM:00043DEC                 bra     loc_43DFE
ROM:00043DEE                 mov.b   r0, @(h'1C,gbr)

td-d · **Posted:** Wed Aug 01, 2012 4:46 pm

Since I already had the rom opened

Location for the two tables in A8DH201X

Code:

ROM:00095D3C word_95D3C:     .data.w 2               ; DATA XREF: sub_3D3D8+8o
ROM:00095D3C                                         ; ROM:off_3D4B8o ...
ROM:00095D3E                 .data.w 2
ROM:00095D40                 .data.l flt_CCB98 - x axis
ROM:00095D44                 .data.l flt_CCBA0 - y axis
ROM:00095D48                 .data.l flt_CCBA8 - table
ROM:00095D4C                 .align h'10
ROM:00095D50 word_95D50:     .data.w 2               ; DATA XREF: sub_3D7C4:loc_3D8C8o
ROM:00095D50                                         ; ROM:off_3D9ECo
ROM:00095D52                 .data.w 2
ROM:00095D54                 .data.l flt_CCBB8
ROM:00095D58                 .data.l flt_CCBC0
ROM:00095D5C                 .data.l flt_CCBC8
ROM:00095D60                 .data.l 0

mrf582 · **Posted:** Wed Aug 01, 2012 5:37 pm

td-d wrote:

Since I already had the rom opened

Location for the two tables in A8DH201X

I wonder why you had that ROM opened...

I'm sure it had nothing to do with my barrage of address requests that you were able to respond to in record time!

This community has basically guaranteed that I will always own a Turbo Subaru.

td-d · **Posted:** Wed Aug 01, 2012 6:31 pm

AZ1G202G

Code:

ROM:00089FA4 Table_Fuel_Pump_Duty_High_Min_smoothed_injector_Duty_cycle:.data.w 2
ROM:00089FA6                 .data.w 3
ROM:00089FA8                 .data.l h'D1340
ROM:00089FAC                 .data.l h'D1348
ROM:00089FB0                 .data.l h'D1354
ROM:00089FB4                 .float 0.0              ; Float
ROM:00089FB8 Table_Fuel_Pump_Duty_Med_Min_smoothed_injector_Duty_cycle:.data.w 2
ROM:00089FBA                 .data.w 2
ROM:00089FBC                 .data.l h'D136C
ROM:00089FC0                 .data.l h'D1374
ROM:00089FC4                 .data.l h'D137C
ROM:00089FC8                 .float 0.0              ; Float

Merp · **Joined:** Thu Jul 23, 2009 1:46 pm **Posts:** 863

All of these pushed to the Alpha repo here: https://github.com/Merp/SubaruDefs/tree/Alpha

Sanity checks were performed on the tables and a template is provided.

Current roms with this Alpha definition:

A8DH200X
AZ1G101N
AZ1G201G

td-d · **Posted:** Tue Sep 04, 2012 12:42 pm

Thanks Merp, you rock!

In return, I endeavor to dig these out for more roms

throttlehappy · **Posted:** Thu Oct 25, 2012 10:02 pm

Able to get these for this ROM? viewtopic.php?f=25&t=6356&start=95

Using ID1000's and IPW is definitely too low for Duty switch points

td-d · **Posted:** Sat Oct 27, 2012 3:37 pm

throttlehappy wrote:

Able to get these for this ROM? viewtopic.php?f=25&t=6356&start=95

Using ID1000's and IPW is definitely too low for Duty switch points

Code:

ROM:0008D7B4 Table_Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle:.data.w 2
ROM:0008D7B4                                         ; DATA XREF: sub_4138C+8o
ROM:0008D7B4                                         ; ROM:off_4144Co ...
ROM:0008D7B6                 .data.w 2
ROM:0008D7B8                 .data.l flt_CE1A0
ROM:0008D7BC                 .data.l flt_CE1A8
ROM:0008D7C0                 .data.l flt_CE1B0
ROM:0008D7C4                 .data.l 0
ROM:0008D7C8 Table_Fuel_Pump_duty_med_min_smoothed_inj_duty_cycle:.data.w 2
ROM:0008D7C8                                         ; DATA XREF: sub_41776+9Eo
ROM:0008D7C8                                         ; sub_41776:off_41904o
ROM:0008D7CA                 .data.w 2
ROM:0008D7CC                 .data.l flt_CE1C0
ROM:0008D7D0                 .data.l flt_CE1C8
ROM:0008D7D4                 .data.l flt_CE1D0
ROM:0008D7D8                 .data.l 0

dux10 · **Joined:** Tue Jun 05, 2012 3:37 pm **Posts:** 81

Another question - I have tried to find these/define them for a 2005 Legacy GT (This ROM: http://www.romraider.com/forum/viewtopic.php?f=29&t=3271 ) , but for some reason cannot find the tables. I believe I have found the X and Y axis' As of now. Here's what I have currently:

<table name="Fuel Pump Duty High Injector Duty Cycle" address="CA674">
<table name="X" address="CA668"/>
<table name="Y" address="CA670"/>
</table>
<table name="Fuel Pump Duty Medium Injector Duty Cycle" address="CA690">
<table name="X" address="CA680"/>
<table name="Y" address="CA688"/>
</table>

td-d · **Posted:** Mon Jun 17, 2013 4:40 pm

dux10 wrote:

Another question - I have tried to find these/define them for a 2005 Legacy GT (This ROM: http://www.romraider.com/forum/viewtopic.php?f=29&t=3271 ) , but for some reason cannot find the tables. I believe I have found the X and Y axis' As of now. Here's what I have currently:

Code:

ROM:00084AB0 word_84AB0:     .data.w 2               ; DATA XREF: sub_3AAEC+8o
ROM:00084AB0                                         ; ROM:off_3ABCCo ...
ROM:00084AB2                 .data.w 2
ROM:00084AB4                 .data.l flt_CA668
ROM:00084AB8                 .data.l flt_CA670
ROM:00084ABC                 .data.l word_CA678      ; = 3.9e1
ROM:00084AC0                 .data.l h'8000000
ROM:00084AC4                 .float 0.0099999998
ROM:00084AC8                 .float 0.0
ROM:00084ACC word_84ACC:     .data.w 2               ; DATA XREF: sub_3AED8+106o
ROM:00084ACC                                         ; ROM:off_3B0BCo
ROM:00084ACE                 .data.w 2
ROM:00084AD0                 .data.l flt_CA680
ROM:00084AD4                 .data.l flt_CA688
ROM:00084AD8                 .data.l word_CA690      ; = 1.3e1
ROM:00084ADC                 .data.l h'8000000
ROM:00084AE0                 .float 0.0099999998
ROM:00084AE4                 .float 0.0

dux10 · **Joined:** Tue Jun 05, 2012 3:37 pm **Posts:** 81

Excellent

I had to change my 32bitbase!

chocholl · **Joined:** Sun Oct 21, 2012 5:36 am **Posts:** 26

Looking this tables for A8DK100P.
Thank you.

td-d · **Posted:** Thu Dec 26, 2013 1:55 pm

chocholl wrote:

Looking this tables for A8DK100P.
Thank you.

Code:

ROM:0008BB50 Table_Fuel_Pump_duty_high_min_smoothed_inj_duty_cycle:.data.w 2
ROM:0008BB50                                         ; DATA XREF: sub_3DECC+8o
ROM:0008BB50                                         ; ROM:off_3DF8Co ...
ROM:0008BB52                 .data.w 2
ROM:0008BB54                 .data.l flt_CBD58
ROM:0008BB58                 .data.l flt_CBD60
ROM:0008BB5C                 .data.l flt_CBD68
ROM:0008BB60                 .data.l 0
ROM:0008BB64 Table_Fuel_Pump_duty_med_min_smoothed_inj_duty_cycle:.data.w 2
ROM:0008BB64                                         ; DATA XREF: sub_3E2B6+9Eo
ROM:0008BB64                                         ; sub_3E2B6:off_3E444o
ROM:0008BB66                 .data.w 2
ROM:0008BB68                 .data.l flt_CBD78
ROM:0008BB6C                 .data.l flt_CBD80
ROM:0008BB70                 .data.l flt_CBD88
ROM:0008BB74                 .data.l 0

sega · **Joined:** Wed Jun 18, 2008 7:46 am **Posts:** 106

Is it the A8DH200Y table as below?

<table name="Fuel Pump Duty High Injector Duty Cycle" address="7C4F0">
<table name="X" address="7C4E8"/>
<table name="Y" address="7C4EC"/>
</table>
<table name="Fuel Pump Duty Medium Injector Duty Cycle" address="7C504">
<table name="X" address="7C4FC"/>
<table name="Y" address="7C500"/>
</table>

It seems something incorrect....

smurfy · **Posted:** Tue Jan 21, 2014 4:29 pm

Can anyone find these tables for CAL id A4TE002B for me please ? My mind is going to explode looking for them . Such a big learning curve. I need low medium and high if that's applicable to my rom. Thanks a million.

RomRaider

Fuel Pump Duty High and Medium Tables

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