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It is currently Fri Jan 09, 2009 12:21 am
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[ 10 posts ] |
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impreza.srx
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Post subject: Hitachi ECU? Subaru??  Posted: Thu Sep 18, 2008 6:58 am |
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| Newbie |
Joined: Mon Oct 15, 2007 3:58 am
Posts: 14
Location: Sydney - Australia
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Hi guys,
I have a small question about the process involved in decoding the ECU software..
From what I can gather, the Subaru ECU's that are supported are all Denso by manufacture.. Does anybody know if any other type of ECU is, or can be supported?
The reason I ask, The New shape Impreza MY08 2.0R NA engine uses the same harness plugs and sensors on the engine (even to the point of the same part number Airflow meter), but is controlled by a Hitachi type ECU.
Today I started downloading ROM's from cars that I can access with my new Openport 2.0 cable, and tried to download of the 2.0R, but It would not access the ECU.. Everything else with Denso ECU no problem..
Does anyone have any ideas, I am willing to be the guinea pig... It is for a race car that I want to get good power out of using the Openport 2.0 cable...
I am based in Sydney, Australia..
Cheers
Sam
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merchgod
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Thu Sep 18, 2008 7:49 am |
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| Administrator |
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Joined: Wed Mar 29, 2006 10:38 pm
Posts: 4225
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You say this is for a race car - did you already do the swap? If so, are you sure everything is wired up to the OBDII port correctly?
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impreza.srx
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Fri Sep 19, 2008 12:06 am |
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| Newbie |
Joined: Mon Oct 15, 2007 3:58 am
Posts: 14
Location: Sydney - Australia
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Yes. Thanks for the reply.
It is a race car, but the car is essentially standard. Standard wiring harness and standard ECU.
The OBD II plug is the same as original.
I even tried a standard road car today with the same result..??
cheers
Sam
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merchgod
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Fri Sep 19, 2008 7:00 am |
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| Administrator |
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Joined: Wed Mar 29, 2006 10:38 pm
Posts: 4225
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All the modern ECUs are Hitachi (Renesas) microcontrollers, so I'm not sure about the distinction between Denso and Hitachi (Denso definitely has a hand in the software). If you could take a picture of the inside and outside of the ECU and post them perhaps some of the hardware guys can make a determination.
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impreza.srx
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Fri Sep 19, 2008 9:02 am |
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| Newbie |
Joined: Mon Oct 15, 2007 3:58 am
Posts: 14
Location: Sydney - Australia
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Ok no worries. I will get some pics as soon as possible..
Sam
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impreza.srx
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Wed Sep 24, 2008 9:32 pm |
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| Newbie |
Joined: Mon Oct 15, 2007 3:58 am
Posts: 14
Location: Sydney - Australia
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Hi, finally got the ECU and camera in the same place for more than 2 minutes.. Please find the pics of the Impreza 2.0R MY08 ECU board and processor.
Looking forward to any help possible..
Cheers
Sam
You do not have the required permissions to view the files attached to this post.
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Jon [in CT]
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Thu Sep 25, 2008 6:53 pm |
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| Experienced |
Joined: Wed Jul 26, 2006 3:19 pm
Posts: 644
Location: Connecticut, USA
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Looks like you're out of luck. The microprocessor appears to be from Unisia JECS (UJ), which isn't supported by EcuFlash.
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impreza.srx
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Thu Sep 25, 2008 9:24 pm |
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| Newbie |
Joined: Mon Oct 15, 2007 3:58 am
Posts: 14
Location: Sydney - Australia
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Damn it... Stoopid Unicia Jecs...
OK Thanks for the guidance.. I have been thinking of another option.. It is going to be big.. I will let you all know how I go..
Sam
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wrxsti-l
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Sun Sep 28, 2008 8:23 pm |
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| Experienced |
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Joined: Wed Feb 06, 2008 3:49 am
Posts: 287
Location: Australia
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If it uses the same harness/plugs - maybe try swap your ecu for one of the support ecus?
_________________
Current Mods: X-Force 3" "Twin-Dump" TBE Exhaust, GCG "bolt-on" GT3076R, APS 3" Hard Turbo Inlet, Short Ram Intake & Pod, RomRaider "Mickeyd2005" Tune.
Current Power: 224kw@wheels (300whp)
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impreza.srx
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Post subject: Re: Hitachi ECU? Subaru?? Posted: Tue Sep 30, 2008 6:43 am |
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| Newbie |
Joined: Mon Oct 15, 2007 3:58 am
Posts: 14
Location: Sydney - Australia
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Yep, thats the plan.. Just cross referencing the Pin outs.. of course, they are not the same..
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