2004 2.5i computer
Posted: Sun Jun 23, 2013 7:44 amHi all, was enquiring as to the tuning ability of my gen4 ej25 computer! Was looking at getting it tuned to back up the gains I have had from my exhaust upgrades.
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Posted: Sun Jun 23, 2013 7:44 amRe: 2004 2.5i computer
Posted: Sun Jun 23, 2013 9:13 amYour ecu is Hitachi therefor not tune-able
2004 2.5i computer
Posted: Sun Jun 23, 2013 1:32 pmDamn that's a pain, is a later model
Like an 06 interchangeable with it?
Like an 06 interchangeable with it?
Re: 2004 2.5i computer
Posted: Sun Jun 23, 2013 2:37 pmShort answer: no
Re: 2004 2.5i computer
Posted: Tue Jun 25, 2013 12:25 amlong answer: yes with expensive difficulties
2004 2.5i computer
Posted: Tue Jun 25, 2013 7:08 amCan an aftermarket computer be piggybacked off it?
Re: 2004 2.5i computer
Posted: Wed Jun 26, 2013 8:20 amThere are optios to go to an aftermarket ECU but you are talking $thousands$...it would sadly probably be cheaper/easier to sell your car and go to a model with a Denso ECU.
Its just not worth the money for a tune...maybe is you planned on a full "blown and intercooled" system it could be justified, but even then I think Blademaster would still try to talk you out of it, as he had to spend the time and money on one.
Its just not worth the money for a tune...maybe is you planned on a full "blown and intercooled" system it could be justified, but even then I think Blademaster would still try to talk you out of it, as he had to spend the time and money on one.
2004 2.5i computer
Posted: Wed Jun 26, 2013 4:52 pmI was going to turbo actually, so no other computers from liberties will plug and play without huge work involved in harnesses etc...
Re: 2004 2.5i computer
Posted: Thu Jun 27, 2013 8:45 pmle correcto
lol, also, it says you have a Gen3 2001 RX, supercharge that! it will actually be easier and cheaper
lol, also, it says you have a Gen3 2001 RX, supercharge that! it will actually be easier and cheaper
2004 2.5i computer
Posted: Fri Jun 28, 2013 8:38 amHahaha I had on gen 3 rx but hated the look and interior so got a gen4
Re: 2004 2.5i computer
Posted: Fri Jun 28, 2013 10:42 amreally? I like the look, esp in black.
Oh well, each to their own. Good luck with car-stuff!
Oh well, each to their own. Good luck with car-stuff!
Re: 2004 2.5i computer
Posted: Sat Jun 29, 2013 5:20 amblademaster wrote:supercharge that! it will actually be easier and cheaper
+1
There's also more "do it yourself" work when supercharging. Happy power hunting!!
Re: 2004 2.5i computer
Posted: Wed Jul 03, 2013 1:26 amI'm still confused as to why the Hitachi's and Denso's have different wiring as I can't see it in the service manual. That being said I have identified a few differences in engine bay wiring. Especially a few Hitachi components that are gone with the Denso.
Re: 2004 2.5i computer
Posted: Wed Jul 03, 2013 10:41 amI wish Subaru would get rid of their Hitachi ECU's all together!!! The Denso is so flexible and easy to tune...so so SO many people that want to tune/modify get on these forums and are 
to find out their Hitachi ECU is unsupported.
to find out their Hitachi ECU is unsupported.Re: 2004 2.5i computer
Posted: Wed Jul 03, 2013 10:04 pmturner_822 wrote:I wish Subaru would get rid of their Hitachi ECU's all together!!! The Denso is so flexible and easy to tune...so so SO many people that want to tune/modify get on these forums and are
QFT!