Welcome to the North American Subaru Impreza Owners Club Thursday December 18, 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 08-24-2004, 04:07 PM   #1
maestro
Scooby Specialist
 
Member#: 53021
Join Date: Jan 2004
Chapter/Region: SCIC
Location: West Hollywood
Vehicle:
'04 Forester - sold
'72 Datsun 240Z

Default Early '04 USDM STi ecu.... any issues or concerns?

I have an '04 USDM STi ecu that is an 'early' version with the serial number ending in AJ240... Should I be concerned at all with it's performance? I searched and can't find much info other than an old Accessport loading problem that has since been remedied. Have early STi owners been trading in or warranty'ing their ecu's for the later versions? I saw something mentioned about a 'ping fix' on later versions of the ecu, and I'm concerned that I seem to have the most primitive version of the STi brain...
STi owners, please post any experiences.
Thanks much,
Marco
* Registered users of the site do not see these ads.
maestro is offline   Reply With Quote
Old 08-24-2004, 04:23 PM   #2
dsmperformance
Scooby Specialist
 
Member#: 15059
Join Date: Feb 2002
Chapter/Region: MAIC
Location: Latrobe, PA
Vehicle:
2004 WRX STi
1991 TSi

Default

No problems with my early version ECU. AP Stage 2 and running awesome...
dsmperformance is offline   Reply With Quote
Old 08-24-2004, 04:53 PM   #3
maestro
Scooby Specialist
 
Member#: 53021
Join Date: Jan 2004
Chapter/Region: SCIC
Location: West Hollywood
Vehicle:
'04 Forester - sold
'72 Datsun 240Z

Default

Sweet. I noticed that you had trouble with that AP loading error; glad to see it worked out. I'm looking to run the same setup but with a VF34...
maestro is offline   Reply With Quote
Old 08-24-2004, 05:04 PM   #4
dsmperformance
Scooby Specialist
 
Member#: 15059
Join Date: Feb 2002
Chapter/Region: MAIC
Location: Latrobe, PA
Vehicle:
2004 WRX STi
1991 TSi

Default

Yeah, a simple download from the Cobb website fixed the issue in about 5 minutes. If you upgrade to a VF34, i'd use caution or monitor with a WB if using the Cobb pre-made maps. They are only designed for the VF39 w/stock airbox.
dsmperformance is offline   Reply With Quote
Old 08-24-2004, 05:11 PM   #5
maestro
Scooby Specialist
 
Member#: 53021
Join Date: Jan 2004
Chapter/Region: SCIC
Location: West Hollywood
Vehicle:
'04 Forester - sold
'72 Datsun 240Z

Default

Point taken, and not to take this off-topic, but I'm waiting to see what Invisiguard and others discover when/if they test that setup. I may just pick up a ported 39 if the 34 doesn't interact well with the AP. This is still theoretical since the whole setup will be fitted to an FXT motor
Anyway, much thanks for the quick replies and the input.

Back on topic: Any other experiences with the early ecu's?
maestro is offline   Reply With Quote
Old 08-27-2004, 09:29 AM   #6
maestro
Scooby Specialist
 
Member#: 53021
Join Date: Jan 2004
Chapter/Region: SCIC
Location: West Hollywood
Vehicle:
'04 Forester - sold
'72 Datsun 240Z

Default

^ Anyone else? Are the early ecu's not EcuTek supported?? I didn't see AJ240 listed on their site...
maestro is offline   Reply With Quote
Old 08-31-2004, 06:13 PM   #7
maestro
Scooby Specialist
 
Member#: 53021
Join Date: Jan 2004
Chapter/Region: SCIC
Location: West Hollywood
Vehicle:
'04 Forester - sold
'72 Datsun 240Z

Default

^ dsmperformance: Have you dyno'd? You sound like you're satisfied with the performance; could I trouble you for some details on your experience with the AP?
maestro 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
USDM STI ecu vs JDM STI ecu Gadiel Engine Management & Tuning 4 11-15-2011 10:41 AM
USDM sti ECU in an 03 USDM wrx prometheum Engine Management & Tuning 0 02-23-2010 01:58 AM
Installing '04 USDM STI Steering Rack in non-'04 STI UTCiv Subaru Conversions 4 01-07-2006 03:31 AM
WTB: '04 USDM STi horshack Private 'Wanted' Classifieds 3 07-25-2003 10:52 AM
'04 USDM STi HID OEM headlamps! Part #'s and $'s! Brahmzy Interior & Exterior Modification 19 05-23-2003 02:30 PM


All times are GMT -4. The time now is 08:53 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.