Fuel Pump Duty High and Medium Tables

td-d · **Posted:** Sun Sep 02, 2018 6:48 am

These tables are for the 32bit roms, not the 16bit roms unfortunately.

turbonator · **Joined:** Thu Apr 23, 2015 4:20 pm **Posts:** 5

Can you find these tables in this rom A2WD012B? I have no idea how to find the tables or how to get it working in this rom.

td-d · **Posted:** Tue Sep 04, 2018 5:02 pm

turbonator wrote:

Can you find these tables in this rom A2WD012B? I have no idea how to find the tables or how to get it working in this rom.

Code:

ROM:0005FE88 word_5FE88:     .data.w 2               ; DATA XREF: sub_36984+8o
ROM:0005FE88                                         ; ROM:off_36A6Co ...
ROM:0005FE8A                 .data.w 2
ROM:0005FE8C                 .data.l flt_692B8
ROM:0005FE90                 .data.l flt_692C0
ROM:0005FE94                 .data.l word_692C8      ; = 5.13e1
ROM:0005FE98                 .data.l h'8000000
ROM:0005FE9C                 .float 0.0099999998
ROM:0005FEA0                 .float 0.0
ROM:0005FEA4 word_5FEA4:     .data.w 2               ; DATA XREF: sub_36D88+D6o
ROM:0005FEA4                                         ; ROM:off_36F38o
ROM:0005FEA6                 .data.w 2
ROM:0005FEA8                 .data.l flt_692D0
ROM:0005FEAC                 .data.l flt_692D8
ROM:0005FEB0                 .data.l word_692E0      ; = 1.71e1
ROM:0005FEB4                 .data.l h'8000000
ROM:0005FEB8                 .float 0.0099999998
ROM:0005FEBC                 .float 0.0

X-Ray · **Posted:** Thu Sep 06, 2018 12:33 pm

td-d wrote:

These tables are for the 32bit roms, not the 16bit roms unfortunately.

The 16bit roms seem to work on the same idea. In my case, the switch to 100% Fuel Pump Duty is at ~8-9ms IPW or 25% IDC. That is ill timed for my setup since the transition is too late and I often have fuel starvation during throttle changes.

Is it possible for us to find the equivalent tables for the 16bit?

Thanks td-d

X-Ray · **Posted:** Tue Oct 30, 2018 2:48 pm

Any update on this?

lvkeith · **Joined:** Sun Jan 02, 2011 6:37 pm **Posts:** 51

Could I have some help with the addresses for A2tB002C please? Thanks

Sent from my iPhone using Tapatalk

lvkeith · **Joined:** Sun Jan 02, 2011 6:37 pm **Posts:** 51

td-d wrote:

These tables are for the 32bit roms, not the 16bit roms unfortunately.

Td-d

Just wanted to chime in again and see if you could give me the addresses for a2tb002c? Pretty please.

I’ve been struggling with light load/throttle stumbles and believe it to be the related to the fuel pump speed and bypass.

Thanks again

Sent from my iPhone using Tapatalk

cortin · **Posted:** Mon Aug 19, 2019 2:51 am

lvkeith wrote:

td-d wrote:

These tables are for the 32bit roms, not the 16bit roms unfortunately.

Td-d

Just wanted to chime in again and see if you could give me the addresses for a2tb002c? Pretty please.

I’ve been struggling with light load/throttle stumbles and believe it to be the related to the fuel pump speed and bypass.

Thanks again

Sent from my iPhone using Tapatalk

a2tb002c

Code:

"Fuel Pump Duty" data offset="#45CAC"

"Fuel Pump Duty Medium Injector Duty Cycle" 
         <cols offset="#CFD78"/>
         <rows offset="#CFD80"/>
         <data offset="#CFD88"/>

"Fuel Pump Duty High Injector Duty Cycle"
         <cols offset="#CFD58"/>
         <rows offset="#CFD60"/>
         <data offset="#CFD68"/>

lvkeith · **Joined:** Sun Jan 02, 2011 6:37 pm **Posts:** 51

a2tb002c

Code:

"Fuel Pump Duty" data offset="#45CAC"

"Fuel Pump Duty Medium Injector Duty Cycle" 
         <cols offset="#CFD78"/>
         <rows offset="#CFD80"/>
         <data offset="#CFD88"/>

"Fuel Pump Duty High Injector Duty Cycle"
         <cols offset="#CFD58"/>
         <rows offset="#CFD60"/>
         <data offset="#CFD68"/>

[/quote]

Thanks!

Sent from my iPhone using Tapatalk

currancchs · **Posted:** Tue Oct 27, 2020 11:31 pm

Just FYI, the x-axis address for the "Fuel Pump Duty Cycle High Injector Duty Cycle" for the 2006 USDM WRX (A8DH202X), at least in the ecu flash, merpmod, development version of the definitions currently on merp's github page, is incorrect. The correct address is CCB98, but it is currently set to CCB90 (type is rawecuvalue). Figured posting this might help someone whose table was also showing incorrect values.

On the first page of this thread, td-d shared a screenshot of the relevant portion of the code showing this address in context (thanks!).

mech · **Joined:** Mon Jun 27, 2022 1:03 am **Posts:** 12

A8DK100I

Code:

<table name="Fuel Pump Duty High Injector Duty Cycle" address="CD048">
   <table name="Battery Voltage" address="CD038"/>
   <table name="Manifold Relative Pressure" address="CD040"/>
</table>

<table name="Fuel Pump Duty Medium Injector Duty Cycle" address="CD068">
   <table name="Battery Voltage" address="CD058"/>
   <table name="Manifold Relative Pressure" address="CD060"/>
</table>

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Fuel Pump Duty High and Medium Tables

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