Error EJ204 DV ECU

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Error EJ204 DV ECU

Postby leowaack » Fri Sep 03, 2010 1:57 pm

I'm recently purchased the tactrix cable do use ROMRAIDER, but can't get ECUFLUSH to read my ECU!
I can Log the ECU via RomRaider Log, but it won't work with learning view or EcuFlush!

The engine is a: EJ204
The Car is a: SADM Impreza 2.0R MT
The Ecu code is: DV
22611 AM800
A18-000 R8C 8Y18

cheers
sincerely

leo
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Re: Error EJ204 DV ECU

Postby leowaack » Sun Sep 19, 2010 11:18 pm

After a while trying still can't get it to work!
Can Someone help me?
Can someone get the definition for my ECU?

cheers

leo
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Re: Error EJ204 DV ECU

Postby radsdau » Mon Sep 20, 2010 4:46 pm

Impreza (non Turbo) probably has a JECS ECU, not Denso. Check that (should be written on the top). If it is not Denso, then sorry, it is not supported by ECUFlash.
If you can read the ROM but there are no definitions for it, post the ROM so the openecu community can work on generating a definition for it.
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Re: Error EJ204 DV ECU

Postby leowaack » Tue Sep 21, 2010 10:44 pm

It sais HITACHI on top of it! So its not a DENSO, so it won't work! What can I do?
Can I use a WRX 07 DENSO ECU in my car???
Is there another solution to do e REMAP on my engine?

cheers

leo
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Re: Error EJ204 DV ECU

Postby leowaack » Wed Sep 22, 2010 11:14 am

I'm a beginer at this so can you help me out how I can get the ROM!
And I will post the ROM as soon as possible!

cheers

leo
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Re: Error EJ204 DV ECU

Postby radsdau » Wed Sep 22, 2010 3:27 pm

Honestly Leo, it's not sounding good. There may be a way but I don't know it.
Any chance of some photos of the outside and insides of the ECU, particularly the large chip?
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Re: Error EJ204 DV ECU

Postby leowaack » Wed Sep 22, 2010 3:41 pm

05022010633.jpg
OutsideECU
05022010633.jpg (915.26 KiB) Viewed 12453 times
Here is a foto of the outside!!! the inside I will post as soon as possible!!!
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Re: Error EJ204 DV ECU

Postby leowaack » Wed Sep 22, 2010 10:45 pm

Inside of the ECU!
IMG00061-20100923-0331.jpg
IMG00061-20100923-0331.jpg (1.19 MiB) Viewed 12451 times
IMG00066-20100923-0334.jpg
IMG00066-20100923-0334.jpg (89.65 KiB) Viewed 12451 times
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Re: Error EJ204 DV ECU

Postby radsdau » Thu Sep 23, 2010 3:48 pm

Thanks- good pics.
Definitely not a Denso ECU though (as you already knew); the 'UJ' on the chip probably stands for UNISIA JECS at a guess. They merged with Hitachi in 2004.
Sorry- I can't help you with reflashing. It'd be nice if we knew how though.
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Re: Error EJ204 DV ECU

Postby ferraz » Thu Sep 23, 2010 6:45 pm

Now we need to find a way to get the ROM out... Any especific board we should post this??
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Re: Error EJ204 DV ECU

Postby sfaragdas » Sun Mar 27, 2011 8:36 am

viewtopic.php?p=24818#p24818

there are some files if is some one who can do something with it??
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Re: Error EJ204 DV ECU

Postby sfaragdas » Sat Oct 22, 2011 1:32 am

so when EcuFlash dont support Hitachi ECU, is another software witch work with Hitachi ECU?? and work on Tactrix 2.0??
i read that the EcuExplorer can work with Hitachi ECU on Tactrix 1.3... but i don't have this one only OP2.0...
Or is some version of EcuExplorer witch work with Tactrix 2.0 ??
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Re: Error EJ204 DV ECU

Postby radsdau » Sun Oct 23, 2011 3:29 pm

As far as I'm aware Ecutek are the only company that offer a reflashing solution for these, and even then I'm not sure how reliable they are. I've heard several stories of bricked/unrecoverable ECUs as a result of attempting to reflash them.
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Re: Error EJ204 DV ECU

Postby Sasha_A80 » Sun Oct 23, 2011 10:44 pm

Subaru MY 99/00 JECS ecu based on UJ WA12212920WWW UJ WA12212930WWW ( Mitstubishi m32150 processor )could not be flashed in a safe manner thru SSM. This is due to improper flash partition.
SSM bootloader code is erased before flash and if something goes wrong during flashing the ecu dyes.
More recent Hitachi ecus may not erase bootloader but have logical errors that may kill the ecu as well.
From probably MY06/MY07 safe reflash maybe done.
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Re: Error EJ204 DV ECU

Postby radsdau » Mon Oct 24, 2011 4:16 pm

So there's no background reflashing process to recover these with if the SSM reflash fails?
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