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  #1  
Old 02-07-2008, 11:20 PM
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Default 03,04 & 05 AUS WRX STi Ecu code help

I know that the 2004 ecu could be swapped over with no problems, but the 05 couldn't due to different pin outs i think.

The issue I have is, I'm replacing my old 2004 ecu (ECUTEK'd) with a standard ECU of the same year - BUT i think i read somewhere that the 04 STi ecu had two revisions, the earlier rev. compatible with a 03 and the latter with a 05 (but not a 03).

Since iv sold the tek'd ecu. Iv acquired another standard one to run in the meantime of my buildup.

I have the ecu chassis and board codes & i need someones help to double check for me:

HC445 10E17, or 112031-7070

if anyone knows...
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Old 03-07-2008, 09:07 AM
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Don't mix WRX and STI ecu's... as there are different components on the mainboards.

WRX <-> STI not same same
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Old 03-07-2008, 09:25 AM
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they are both STi ecu's, just not sure which revision the 04 STI ecu is
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Old 11-07-2008, 05:47 PM
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OK - so I found the right ecu - and put it in.

Now my car wont start coz of the key coding.
Is there anyway I can recode the keys at home - without having to tow my car to subaru ??

pm me if needed
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Old 15-07-2008, 06:03 PM
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note - there is no way around it. Subaru are the only ones with the computer to code the ecu to key.
all good.
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Old 15-07-2008, 06:07 PM
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thats what they would like you to believe
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03, 04, 05, aus, code, ecu, sti, wrx

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