Welcome to the North American Subaru Impreza Owners Club Friday August 1, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Subaru Conversions

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 08-02-2007, 05:39 PM   #1
Liam
Scooby Newbie
 
Member#: 140093
Join Date: Feb 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Default Quick question: 05 STI ECU > 05 STI ECU (replacment)

Hey guys, need to ask a quick question

I fired my 05 STI ECU
And I am looking for a new replacment

Will an used ECU off another 05 STI do the job or do I have to swap all the key, rings, wires because of the immobilizer?

My car won't start now because of the bad ECU... what should I do?

Thanks a lot!
* Registered users of the site do not see these ads.
Liam is offline   Reply With Quote
Old 08-02-2007, 05:44 PM   #2
sidewayz
Scooby Specialist
 
Member#: 5810
Join Date: Apr 2001
Chapter/Region: Tri-State
Location: Easton PA
Vehicle:
2001 S366 2.5RS

Default

need to swap everything. what ya do? screw up a flash?
sidewayz is offline   Reply With Quote
Old 08-02-2007, 06:09 PM   #3
Slack
Scooby Specialist
 
Member#: 17548
Join Date: Apr 2002
Location: Atlanta, Ga
Default

You could just replace the ECU, but it would need to be connected to a SSM (Subaru Select Monitor). You have to reinitialize the immobilizer system with the new ECU.

Mick
Slack is offline   Reply With Quote
Old 08-02-2007, 11:59 PM   #4
Liam
Scooby Newbie
 
Member#: 140093
Join Date: Feb 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Default

Any idea how much will the reinitialize cost?
Hope that not going to cost arm and leg
Liam is offline   Reply With Quote
Old 08-03-2007, 12:48 AM   #5
Liam
Scooby Newbie
 
Member#: 140093
Join Date: Feb 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Default

Quote:
Originally Posted by sidewayz View Post
need to swap everything. what ya do? screw up a flash?
yup, lol...

screw up bbbbbbbbbaaaaaaaaaddddddddddd
Liam is offline   Reply With Quote
Old 08-03-2007, 02:39 AM   #6
Altaic
Scooby Newbie
 
Member#: 31098
Join Date: Dec 2002
Chapter/Region: Tri-State
Default

Quote:
Originally Posted by Slack View Post
You could just replace the ECU, but it would need to be connected to a SSM (Subaru Select Monitor). You have to reinitialize the immobilizer system with the new ECU.

Mick
Could you elaborate? I may need to buy an immobilizer for a swap... I'm not sure yet if the immobilizer will come with the ECU and everything else or not, and I'd rather not have to purchase another ECU with the immobilizer.
Altaic is offline   Reply With Quote
Old 08-03-2007, 06:29 AM   #7
Slack
Scooby Specialist
 
Member#: 17548
Join Date: Apr 2002
Location: Atlanta, Ga
Default

For a swap, I wouldn't even consider the immobilizer system. Unless your car is an 2005-up that was equipped from the factory with the system, no dealership will touch your car (officially). If you happen to know a local suby tech and they can do it off the books, then you could try that.

What kind of swap are you considering?

Mick
Slack is offline   Reply With Quote
Old 08-03-2007, 06:32 AM   #8
Slack
Scooby Specialist
 
Member#: 17548
Join Date: Apr 2002
Location: Atlanta, Ga
Default

Quote:
Originally Posted by Liam View Post
Any idea how much will the reinitialize cost?
Hope that not going to cost arm and leg
I would talk to whatever local dealership you have had good experience with. Are there any BAIC members who work at a dealership that could possibly help get you into the shop for help?

Did you completely fry your ECU? Or is there a local tuner who could undo the bad reflash?

Mick
Slack is offline   Reply With Quote
Old 08-03-2007, 07:21 AM   #9
Chav
Scooby Specialist
 
Member#: 3269
Join Date: Dec 2000
Chapter/Region: SCIC
Location: San Diego
Vehicle:
2001 2.5RS Sedan STM
RSTi

Default

Couldn't you get an 04 sti ecu and repin your connector?
Chav is offline   Reply With Quote
Old 08-03-2007, 03:32 PM   #10
Treefolk
*** Banned ***
 
Member#: 153308
Join Date: Jul 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Vehicle:
2005 Aspen White STI
18x9.5 +22 White CE28N

Default

I am not doing a swap though...

My car is a 05 STI and I fry my ecu during my reflash

So I am stuck in between because my car can't move now

I have to get a ECU and return my car to stock map
Treefolk is offline   Reply With Quote
Old 08-03-2007, 06:15 PM   #11
Slack
Scooby Specialist
 
Member#: 17548
Join Date: Apr 2002
Location: Atlanta, Ga
Default

Quote:
Originally Posted by Treefolk View Post
I am not doing a swap though...

My car is a 05 STI and I fry my ecu during my reflash

So I am stuck in between because my car can't move now

I have to get a ECU and return my car to stock map
I wasn't talking to you when I mentioned the swap issue.

Were you trying to use OpenECU? Self-tuning isn't for the inexperienced. Find another ECU and get it to the dealership to have them fix your problem. There is no easy way around it.

Mick
Slack is offline   Reply With Quote
Old 08-03-2007, 09:49 PM   #12
Liam
Scooby Newbie
 
Member#: 140093
Join Date: Feb 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Default

Quote:
Originally Posted by Slack View Post
I wasn't talking to you when I mentioned the swap issue.

Were you trying to use OpenECU? Self-tuning isn't for the inexperienced. Find another ECU and get it to the dealership to have them fix your problem. There is no easy way around it.

Mick

oops... sorry... lol, hehe, I thought you were talking to me

Ya.. that's actually what my mechanic told me messed up bad and learn my lesson...

I should have just bought a AP instead

I used to play with openECU with my 03 bugeye a lot

but screw up bad for the frist time with my STI


so do I need to tow my car to the dealer or just get a new ECU to them with my key and they can do the job?

And will an used ECU from another 05 STI do the job?
or I have to get a new one from dealer?

Thank you very much guys
you guys save my life
Liam is offline   Reply With Quote
Old 08-04-2007, 09:55 PM   #13
Liam
Scooby Newbie
 
Member#: 140093
Join Date: Feb 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Default

bump for my last question

Thanks!
Liam is offline   Reply With Quote
Old 08-05-2007, 08:55 AM   #14
Liam
Scooby Newbie
 
Member#: 140093
Join Date: Feb 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Default

oh, and any idea will a 04 sti ecu works well in a 05 sti??
Liam is offline   Reply With Quote
Old 08-05-2007, 12:40 PM   #15
Slack
Scooby Specialist
 
Member#: 17548
Join Date: Apr 2002
Location: Atlanta, Ga
Default

Quote:
Originally Posted by Liam View Post
oops... sorry... lol, hehe, I thought you were talking to me

Ya.. that's actually what my mechanic told me messed up bad and learn my lesson...

I should have just bought a AP instead

I used to play with openECU with my 03 bugeye a lot

but screw up bad for the frist time with my STI


so do I need to tow my car to the dealer or just get a new ECU to them with my key and they can do the job?

And will an used ECU from another 05 STI do the job?
or I have to get a new one from dealer?

Thank you very much guys
you guys save my life
I don't know about using an 04 ecu due to how often Subaru makes changes in the wiring from year to year.

As far as a used 05 ecu, I guess it would depend on the dealership. They might not want to touch a car in that condition. You could call around and see what your best option would be.

Mick
Slack is offline   Reply With Quote
Old 08-05-2007, 08:31 PM   #16
crazyGC8
Scooby Specialist
 
Member#: 107421
Join Date: Feb 2006
Chapter/Region: South East
Location: TN
Vehicle:
MY00 RSTi-SOLD BUILT
MY04 STi-SOLD AG2 S13-DD

Default

YES, a 04 STi ecu will work but the connector has to have a few wires repinned. Subaru did that for theft reasons(so you cant steal a 05 with 04 ecu). However, you'll be losing your immobilizer system which will suck!! I would get a 05 ecu and have the dealer reflash it for you immobilizer system.
crazyGC8 is offline   Reply With Quote
Old 08-05-2007, 08:39 PM   #17
Liam
Scooby Newbie
 
Member#: 140093
Join Date: Feb 2007
Chapter/Region: BAIC
Location: San Francisco, CA
Default

that's right

Thank you so much guys

Guess I have to call my local dealer ship and see what can I do now...

Thanks a lot
Liam is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Quick Question: Is the 04 and 05 WRX ecu's swappable? Dave6265 Newbies & FAQs 3 04-05-2007 06:57 PM
WTT: 2005 STI trunk -> 05 WRX Trunk Foo_Blyat MWSOC Private Classifieds 14 05-02-2006 09:19 AM
? about 04 WRX <-> 06 WRX and 04 STI <-> 06 STI scoops. Aleksey Subaru Conversions 3 03-26-2006 11:52 AM
canadian STI seats > USDM STI seats? vapore0n Interior & Exterior Modification 15 02-03-2005 11:13 AM
US STi HID ---> Canadian STi / US WRX Extraze STi Forum Archive 6 06-25-2003 06:22 PM


All times are GMT -4. The time now is 02:45 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.