Welcome to the North American Subaru Impreza Owners Club Monday September 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 > Engine Management & Tuning > Open Source Reflashes

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 01-18-2008, 03:00 PM   #1
inyoface59
Scooby Newbie
 
Member#: 95972
Join Date: Sep 2005
Chapter/Region: MWSOC
Location: omaha
Vehicle:
2012 Legacy

Default resistor on ecu board?

i pulled my ecu board on my 02 wrx because i was having some proplems and found a burnt resistor.

Problems: i went out to datalog since i just got a new map from my tuner (stock image but scaled to new sti pink injectors) and as i started the log, about 3200rpm and <10 pounds of boost the car started bucking and hesitating real bad and all of a sudden my temp gauge pegged hot, oil light came on, fuel gauge went to zero and gas light came on (but had a full tank), the car died and the caution/hazard lights didnt work.

ive checked all of the fuses and they all check out fine, the car just had an engine swap with a new 2.0L but we didnt touch the wireing at all, all the grounds were just how they were before we pulled the engine.

so if anyone knows that the resistor T849 on the stock ecu board is or what it is used for it will be greatly appricaited.




i know im probably going to have to replace the ecu but i want to prevent the new one from frying too.

* Registered users of the site do not see these ads.

Last edited by inyoface59; 02-27-2008 at 04:20 PM.
inyoface59 is offline   Reply With Quote
Old 01-18-2008, 06:05 PM   #2
Gr3en
Scooby Specialist
 
Member#: 160991
Join Date: Oct 2007
Chapter/Region: MWSOC
Location: Gorillaoffroadcompany.com
Vehicle:
05 Corn Burner
Dirt Silver?

Default

If you are going to replace it I would try replacing the part that is burnt out. It may save you a lot of money.
Gr3en is offline   Reply With Quote
Old 01-18-2008, 08:17 PM   #3
Tea cups
Scooby Specialist
 
Member#: 103136
Join Date: Dec 2005
Default

The ecu does not control the temp gauge, fuel level, fuel low light, oil pressure light, so it is likely the ECU issue is the result of an electrical issue with your car, not the cause.
Tea cups is offline   Reply With Quote
Old 01-20-2008, 12:21 AM   #4
NemesisWRX
Scooby Newbie
 
Member#: 134413
Join Date: Dec 2006
Chapter/Region: MAIC
Location: Pittsburgh, PA
Vehicle:
2015 WRX
WRB

Default

Not that it matters or anything, but that looks like a transistor, not a resistor. The "T"849 would also seem to confirm this. That might make it a little more difficult to find a replacement component if you tried to repair the ECU like someone above suggested. Although, if you could find any writing on the one to the right of the blown one, someone could maybe look it up and find a replacement for you. If that's the only problem with the ECU, I'd try to repair it myself first, you will only be out the cost of the transistor if it doesn't work, and if it does you won't have to buy a whole new ECU.
NemesisWRX is offline   Reply With Quote
Old 01-20-2008, 12:46 AM   #5
inyoface59
Scooby Newbie
 
Member#: 95972
Join Date: Sep 2005
Chapter/Region: MWSOC
Location: omaha
Vehicle:
2012 Legacy

Default

yes i think your right, i just guessed that it was a resistor since i dont know to much about electrical boards.

the numbers/letters i get off of the other transistor are "GA" then under that it is "1Y"... that transistor is number T847 "the good one to the right of the blown one in the pic"

ill look around and see what i can dig up about the board. not to many people seem to know what the exact things on the board are used for but ill keep looking.

-Phil
inyoface59 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
Using 3ohm resistors on a WRX dash swap into a GC8 skibumm3 Interior & Exterior Modification 13 05-10-2007 03:27 PM
2004 manual ecu board madmr2 Engine/Power/Exhaust 6 10-04-2006 03:06 PM
What is going on with the icons on the board!? aod Off-Topic 0 10-30-2003 08:11 PM
yellow REX on Hostetter Rd! ( i know you are on the board!) RimRockaz Bay Area Impreza Club Forum -- BAIC 5 06-21-2001 03:14 AM
('93-'01) Is there gonna be more ads on this board? TaiChih Impreza Forum 7 05-08-2001 10:33 AM


All times are GMT -4. The time now is 09:51 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.