Welcome to the North American Subaru Impreza Owners Club Saturday August 30, 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 > Engine Management & Tuning

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 08-15-2013, 10:13 AM   #1
bako
Scooby Specialist
 
Member#: 226211
Join Date: Oct 2009
Location: Europe
Vehicle:
2002 impreza WRX JDM
blue

Default 02-03 wrx ECU AVCS?

I'm looking for an ECU for JDM 02 wrx 5MT with AVCS.
does USDM 02-03 wrx ecu have avcs availability inside? will it work if I will flash my JDM avcs rom?
I was told even 02-03 USDM AT ecu can be used if reflashed... but not sure about AVCS proper work....

I also was adviced to use SG5 forester 2.0 turbo 5MT with reflash, and 02-03 legacy twinturbo at/mt with reflash (both of them have 16bit same specific ecu)...

can you advice something?
* Registered users of the site do not see these ads.
bako is offline   Reply With Quote
Old 08-15-2013, 10:15 AM   #2
codesoccer
Scooby Specialist
 
Member#: 179573
Join Date: May 2008
Chapter/Region: South East
Location: South Florida
Vehicle:
2002 MBP Bugeye
Flip Flop Tuned on corn

Default

The usdm 02 wrx ecu can be reflashed but it DOES NOT have the capability to control avcs.
codesoccer is offline   Reply With Quote
Old 08-16-2013, 03:22 AM   #3
bako
Scooby Specialist
 
Member#: 226211
Join Date: Oct 2009
Location: Europe
Vehicle:
2002 impreza WRX JDM
blue

Default

so 22611AJ030 this is ecu for 02-03 USDM wrx 5MT can not be made to work with AVCS even with reflash?

so which year USD impreza ecu can I use to work avcs?
bako is offline   Reply With Quote
Old 08-16-2013, 04:29 AM   #4
blubug_768
Scooby Newbie
 
Member#: 324962
Join Date: Jul 2012
Chapter/Region: BAIC
Location: Morgan Hill CA.
Vehicle:
02 WRX

Default

Well my 02 usdm ecu can be reflashed to control avcs, a4sg900c or whatever, but you need to wire in the ocv to the ecu.
blubug_768 is offline   Reply With Quote
Old 08-16-2013, 08:06 AM   #5
bako
Scooby Specialist
 
Member#: 226211
Join Date: Oct 2009
Location: Europe
Vehicle:
2002 impreza WRX JDM
blue

Default

well, can you give me part number of that ECU? I mean 226aa XX XXX
I do not have issue with wiring, because my car initially does have avcs and no extra wiring is needed from ecu to avcs valves.

I have a chance to get 22611AJ030, so wondering can I use it or not I should ship it from USA to europe, that's why I want to be sure about what I'm doing.
bako is offline   Reply With Quote
Old 08-16-2013, 08:19 AM   #6
Vlad
Scooby Guru
 
Member#: 46135
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX
Sti V9 Spec C

Default

Quote:
Originally Posted by blubug_768 View Post
Well my 02 usdm ecu can be reflashed to control avcs, a4sg900c or whatever, but you need to wire in the ocv to the ecu.
So you reflashed your USDM ECU with JDM ROM, connected the AVCS to.... the ports where it would be connected in a JDM ECU?
And you have logs that show that AVCS is working?

If you do, this would be big news, I'm sure many in the EJ207 community would be interested in this and the price of JDM ECU's would finally take a nosedive.
Vlad is offline   Reply With Quote
Old 08-16-2013, 08:41 AM   #7
bako
Scooby Specialist
 
Member#: 226211
Join Date: Oct 2009
Location: Europe
Vehicle:
2002 impreza WRX JDM
blue

Default

today I'm going to try one USDM ecu. if it does not have avcs function and I'll try to drive on it, won't this damage something? :P sorry for stupid question, but I know improper tune of avcs can cause damage to the engine
bako is offline   Reply With Quote
Old 08-16-2013, 08:46 AM   #8
Vlad
Scooby Guru
 
Member#: 46135
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX
Sti V9 Spec C

Default

You will have to research your neutral safety switch situation, to eliminate the AVCS not activating due to improper neutral switch polarity.
The cutoff is in 2004, both the engine, transmission and actually the ROM have to me on the same side of 2004.

Once this is done, the JDM Factory ROM has normal levels of AVCS and you don't have to drive full blast to see signs of AVCS life in a logger.

Once you've confirmed that you have AVCS, you need to bring this to a tuner and be carefull with not running WOT untill everything is sorted out.

If this works, it will be something new.

You need to reflash your USDM ECU with the same year JDM WRX or Sti ROM, to be safer, but I can't tell you for sure if this is going to work or not.
Vlad is offline   Reply With Quote
Old 08-16-2013, 09:01 AM   #9
bako
Scooby Specialist
 
Member#: 226211
Join Date: Oct 2009
Location: Europe
Vehicle:
2002 impreza WRX JDM
blue

Default

which year USDM wrx ecu should I get to have avcs availability? it also should not have electric throtile body, nor imobiliser.

and also, can I use ecu from 4AT wrx?
bako is offline   Reply With Quote
Old 08-16-2013, 09:43 AM   #10
Vlad
Scooby Guru
 
Member#: 46135
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX
Sti V9 Spec C

Default

There is no precedent to this.
What I am thinking is, if you have an ECU with your car, and it's a 16bit throttle by cable USDM WRX ECU, such as a 2002-2005 WRX, go with that.

Now the ROM that you will try to put on it, is best the same year JDM ROM.
Meaning if you have a 2002 USDM WRX ECU, make an attempt with a 2002 JDM ROM, as opposed to a 2004 JDM ROM. The JDM Rom will have the AVCS drivers AND IF it's true that the USDM ECU may... possibly.. have the controller for AVCS in-active, dorment, but the transistors are there, this may then wake it up.

Understand that I am not saying I know this, I have never heard or read that this may be possible, except for the guy that posted here.
But there is a possibillity that this may work.

This is an experiment, to see if this may work, anything is possible, as outcome.
A bad outcome is possible too, I'll be honest, but I am making a guess that if you're using the same year ROM, the chances of bad outcome are reduced.
The bad outcome could mean a bricked ECU.

I am running my JDM Sti 2005 engine with a USDM WRX 2002 ECU sometimes and the logging does not show anything bad happening to the engine.
However, the USDM ECU is running the 2002 ROM, which i tuned for this JDM engine and I am staying out of boost or in low boost.
Also, I have the AVCS not working, while the USDM ECU is running the engine.
Vlad is offline   Reply With Quote
Old 08-31-2013, 10:45 PM   #11
Samiam1017
Scooby Specialist
 
Member#: 334068
Join Date: Oct 2012
Location: North eastern pa.
Default

Any updates on this.
Samiam1017 is offline   Reply With Quote
Old 09-01-2013, 10:36 AM   #12
bako
Scooby Specialist
 
Member#: 226211
Join Date: Oct 2009
Location: Europe
Vehicle:
2002 impreza WRX JDM
blue

Default

after tomorrow I will get ECU, so let you know...
bako is offline   Reply With Quote
Old 09-03-2013, 05:35 PM   #13
Concillian
Scooby Guru
 
Member#: 4414
Join Date: Feb 2001
Location: Dublin, CA
Vehicle:
2002 WRX Sedan
Midnight Black

Default

You can load an AVCS map into the USDM ECU, but the ECU lacks the AVCS controllers.

For example, the Carberry ROM has AVCS tables, and will work on my 02 WRX ECU, but will not control AVCS, but if I load the same map into my version 8 ECU, it controls AVCS (once it's wired properly.)

None of the USDM 16 bit ECUs (that I'm aware of) have the capability of controlling AVCS.

I haven't tried flashing the JDM v8 ROM into the 02 ECU, but there's not really a reason to do that when you can use the Carberry ROM. The Carberry ROM also has neutral position logic switch in the ROM so you can easily deal with NPS differences.
Concillian is offline   Reply With Quote
Old 09-03-2013, 11:43 PM   #14
Vlad
Scooby Guru
 
Member#: 46135
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX
Sti V9 Spec C

Default

so you have a V8 JDM EJ207, with AVCS wired and working, you load the carberry, it's still working, then you swap in the 2002 USDM ECU, you obviously don't disconnect the AVCS at the solenoids, load the carberry software, change the NPS logic and the AVCS is not working?
Vlad is offline   Reply With Quote
Old 09-05-2013, 05:05 PM   #15
Concillian
Scooby Guru
 
Member#: 4414
Join Date: Feb 2001
Location: Dublin, CA
Vehicle:
2002 WRX Sedan
Midnight Black

Default

Correct. 02-05 USDM ECU cannot control AVCS because there's no logic in the ECU to do it, no matter what ROM you use.
Concillian is offline   Reply With Quote
Old 09-09-2013, 07:25 PM   #16
WRick
Scooby Newbie
 
Member#: 86107
Join Date: Apr 2005
Chapter/Region: E. Canada
Location: 10% REAL FRUIT JUICE
Default

tried a wrx ecu in my car so I could flash it for a friend, wired for avcs ( works with my usualy V7 ecu ).

No avcs whatsoever. Not going to happen either.
WRick is offline   Reply With Quote
Old 09-10-2013, 12:07 AM   #17
Vlad
Scooby Guru
 
Member#: 46135
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX
Sti V9 Spec C

Default

Ok, so this is settled then, USDM WRX 16bit ECU won't do AVCS, thanks for trying guys.
Vlad is offline   Reply With Quote
Old 09-11-2013, 04:33 PM   #18
illmatic
Scooby Specialist
 
Member#: 3536
Join Date: Jan 2001
Chapter/Region: SCIC
Location: SD, OC
Vehicle:
2013 SWP BRZ Limited
2002/2003 AW/PSM WRX

Default

I almost acquired a 2001 22611AF460 ("New Age WRX") JDM ECU for about $30 from a yahoo auction. Since they have the electronics to control AVCS, what's the probability of it being re-flashed to a Version 7/8 STi map?

Last edited by illmatic; 09-11-2013 at 04:48 PM.
illmatic is offline   Reply With Quote
Old 09-12-2013, 02:51 PM   #19
WRick
Scooby Newbie
 
Member#: 86107
Join Date: Apr 2005
Chapter/Region: E. Canada
Location: 10% REAL FRUIT JUICE
Default

Quote:
Originally Posted by illmatic View Post
I almost acquired a 2001 22611AF460 ("New Age WRX") JDM ECU for about $30 from a yahoo auction. Since they have the electronics to control AVCS, what's the probability of it being re-flashed to a Version 7/8 STi map?
This WORKS!

Actually, I landed on an automatic WRX ECU, JDM, with avcs.

Loaded carberry with my map and it's like nothing had changed. Full avcs, launch control, yadda yadda.

Bid away sir, bid away.

I also tried the MAF map from my car, it flashed, but then I realized my maf was in a drawer somewhere. Can't validate full functionality.

Edit : the ecu I found was a 22611AH000

GDA WRX B type(01.10-02.10) AT 3W SS.205 22611AH000 20220FH03W1
WRick is offline   Reply With Quote
Old 09-12-2013, 04:40 PM   #20
illmatic
Scooby Specialist
 
Member#: 3536
Join Date: Jan 2001
Chapter/Region: SCIC
Location: SD, OC
Vehicle:
2013 SWP BRZ Limited
2002/2003 AW/PSM WRX

Default

^Sounds good! This may be a good alternate solution to Ver7-9 swaps that are ECUTek locked or have immobilizers. I ended up purchasing the ECU below for $100. It will be a spare as I'm still deciding on full STi Version 8/9 or a JDM EJ205 w/AVCS.
illmatic is offline   Reply With Quote
Old 09-15-2013, 03:31 AM   #21
bako
Scooby Specialist
 
Member#: 226211
Join Date: Oct 2009
Location: Europe
Vehicle:
2002 impreza WRX JDM
blue

Default

I got ecu ah581 from 03jdm and it was reflashed with my old map (02 jdmwrx with avcs) withoutany issue
bako is offline   Reply With Quote
Old 10-08-2013, 09:09 PM   #22
ineedars
Scooby Newbie
 
Member#: 277854
Join Date: Mar 2011
Default

Hey guys,
if anyone is still on this thread; I'm buying a version 6 JDM 2.0 turbo and im skeptical as to what ECU i need to run. the guy whose selling the motor says its runs fine but around 4,000 RPMs it staggers.
as far as i know the wiring harness and bulkhead harness are both US.
do you think they didnt splice it correctly? would changing the ECU work without wiring? would i need to try and get a JDM wiring harness?
ineedars is offline   Reply With Quote
Old 10-12-2013, 01:43 PM   #23
Mario_pic
Scooby Newbie
 
Member#: 346512
Join Date: Feb 2013
Default

wondering will some one be willing open there v7 jdm sti ecu and take high res pics of the board both sides and an 02 usdm wrx ecu it may be possible to add the parts to the ecu to make it work with avcs use to do this way back when I had a civic all the ecu boards where same but parts where missing all u did was add the parts to it and u where good to go after a flash wondering if its possible to convert the usdm to jdm id start tracing from the and comparing from the cps back to ecu and see the changes or make transparent image of both and over lay them and see if u can spot the different in them
Mario_pic 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


All times are GMT -4. The time now is 01:54 PM.


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.