2002 WRX offsets

Postby Navybluesubaru » Wed Jan 11, 2006 10:47 am

Well I spend my days combing through the rom looking for what looks like useful information. Here is a definition of a map that I found. I dont know what it goes to but if somebody can identify it then please do. I dont yet know where the data is for its columns and rows so I stole them off of the low-det fuel map until I find them. The thing to ananlyze here is the actual data and way it maps out.

This is on a ="A4SGA00C" ECU.

Code: Select all
<map name="Test 3d" type="3">
<rows count="14" func_2val="[value]*50" func_val2="[value]/50" offset="#2DB16" power="2" format="%.0f" mul="#FFFF" caption="" desc="RPM"/>
<cols count="10" func_2val="[value]/8192" func_val2="[value]*8192" offset="#2DA5E" power="2" format="%.4f" mul="#FFFF" caption="" desc="Load (Air/Cylinder charge)"/>
<data func_2val="[value]" func_val2="[value]" offset="#2DA8A" power="1" format="%.2f" mul="#FFFF" caption="" desc="DATA" color_dir="1" inc="1" incb="5" inc_dir="0"/>
</map>


Any Ideas?

Jeff
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Postby Navybluesubaru » Thu Jan 12, 2006 3:59 am

[EDIT]!! I tried this myself just a few minutes ago and none of the CEL's went away. I will investigate further but i'll be sure to post my findings !![/EDIT]

For the DTC's (Error codes), they can be found from "2E200 to 2E70F" on a "A4SGA00C" ECU.

View in 1-Power Hex. Each DTC consists of 3 bytes; Here is an example of a P420 dtc:

0x03 0x04 0x20 located at #2E48D.

The 1st byte designates whether the DTC is an OBD or OEM specific code.
The 2nd and 3rd byte resemble the error code, obviously.

replace this with:

0x05 0x00 0x00 And the DTC is disabled.

Props to Cboles for brining this to light in a different post, I just wanted to point out where they were in my ecu revision and help those who dont know how to work with them.

Jeff
Last edited by Navybluesubaru on Thu Jan 12, 2006 3:52 pm, edited 1 time in total.
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Postby Navybluesubaru » Thu Jan 12, 2006 11:32 am

I just verified the Injector scaling value for the "A4SGA00C" Ecu version. It is at #28AE2. 0x19 0x2A is standard. This is power=1. In power=2, it flips it to 0x2A19, which is 10777decimal.

_Size_____1st Byte____2nd Byte_____Equation____
830cc = #28AE2:0x10 #28AE3:0x5B ; 6442 * 0.65
850cc = #28AE2:0x0F #28AE3:0xBA ; 6442 * 0.63
870cc = #28AE2:0x0F #28AE3:0x19 ; 6442 * 0.60

I am using the 850cc numbers for my modded stock injectors. The fuel trim hovers around 0.
I cannot guarantee the 830 and 870 but based on how it ran on my 850's, I guessed those "cc" values but they should be close.

ENJOY!!!

Jeff
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Postby Navybluesubaru » Sat Jan 14, 2006 6:21 am

Spiider - can you give some of the formulas for how to convert the values in your first post into something we can understand? I get values that dont make any sense for a lot of the items and need to know the formulas. If you can upload your xml definition that would be awesome.

Jeff
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Postby Spiider » Sun Jan 15, 2006 1:50 pm

Sorry, I don't have an XML template for anything I've done.

Some of the formula's are already posted in those offset postings. I'm also not prepared to release any more info from my ecu rom debugging work right now. :(
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Postby ev8siv3 » Tue Mar 28, 2006 2:30 pm

This is all I could get to show up using the Offsets listed here for 2002. The A4SGD10C doesn't seem to work with most of the offsets listed on the 1st post of this thread. This is in my ECU_DEFS.XML for enginuity. If anyone else has more tables I can access please let me know the addresses.

Code: Select all
   <rom base="WRXBASE">
      <romid>
         <xmlid>A4SGD10C</xmlid>
         <internalidaddress>200</internalidaddress>
         <internalidstring>A4SGD10C</internalidstring>
         <caseid>?</caseid>
         <ecuid>1</ecuid>
         <market>USDM</market>
         <transmission>?</transmission>
         <year>2002</year>
         <flashmethod>wrx02</flashmethod>
         <memmodel>unknown</memmodel>
      </romid>   
      <table name="Fuel (Low Det)" storageaddress="0x293A4" sizex="15">
         <table type="X Axis" storageaddress="0x29384" />
         <table type="Y Axis" storageaddress="0x29363" />
      </table>
      <table name="Fuel (High Det)" storageaddress="0x294E6">
         <table type="X Axis" storageaddress="0x294C8" />
         <table type="Y Axis" storageaddress="0x294A3" />
      </table>
      <table name="Main Ignition" storageaddress="0x29BB3">
         <table type="X Axis" storageaddress="0x29B91" />
         <table type="Y Axis" storageaddress="0x29B70" />
      </table>
      <table name="Ignition Correction" storageaddress="0x2A11E">
         <table type="X Axis" storageaddress="0x2A102" />
         <table type="Y Axis" storageaddress="0x2A0E1" />
      </table>
      <table name="Wastegate Duty Cycle" storageaddress="0x2B308">
         <table type="X Axis" storageaddress="0x2B2F6" />
         <table type="Y Axis" storageaddress="0x2B2E5" />
      </table>
      <table name="Boost Target" storageaddress="0x2B470">
         <table type="X Axis" storageaddress="0x2B45E" />
         <table type="Y Axis" storageaddress="0x2B44B" />
      </table>
      <table name="EGT Limit" storageaddress="0x2BC9A">
         <table type="X Axis" storageaddress="0x2BC94" />
         <table type="Y Axis" storageaddress="0x2BC8F" />
      </table>
      <table name="Boost Limit (Fuel Cut) ?" storageaddress="0x291FE" />
      <table name="Rev Limit" storageaddress="0x298B4" />
      <table name="Boost Speed Limiting" storageaddress="0x2B522" />
   </rom>
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Postby qoncept » Tue Mar 28, 2006 3:28 pm

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Postby ev8siv3 » Tue Mar 28, 2006 3:48 pm

qoncept wrote:http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1143012452

This should help.. ;)


Awesome that works for now, I'll try to update my XML file.
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