Welcome to the North American Subaru Impreza Owners Club Monday September 15, 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 > Electrical & Lighting

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 08-10-2012, 07:59 PM   #1
Blubullt02
Scooby Newbie
 
Member#: 221344
Join Date: Aug 2009
Chapter/Region: MAIC
Location: tucson az
Vehicle:
2002 impreza wrx
wrx rally blue

Default sbd5 fuse. help

Ok so I have a 02 wrx with built motor and just about every bolt on. I had a wideband sensor welded in yesterday and drove home. This morning I started it up and got halfway down the driveway and it stopped. It turned over but I couldn't hear the fuel pump priming. Found that the sbf5 fuse is blown. Researched on here and started unplugging thing such as the fuel pump, relay fuel pressure controller, 02 sensors, all engine sensors, and the Ecu. Tested the relays and pump, all ok. Found that the voltage/amps drop where the fuse plugs in when I unplug the bottom plug if the ecu plugs are facing the 3oclock position. I am now stuck. I plugged in another Ecu and it doesn't fix the problem. I have all of the carpet and seats ripped out and.I traced all the wires inside and none have damage. What would the next step be? Thanks.
* Registered users of the site do not see these ads.
Blubullt02 is online now   Reply With Quote
Old 08-10-2012, 11:40 PM   #2
Cougar4
Scooby Specialist
 
Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:
2001 LL Bean Outback
Winestone

Default

That fuse also supplies power to a lot of engine sensors including the O2 sensors. Chances are that one of those sensor wires has made contact with the exhaust system and burned through the insulation causing a short. Check over the wires on the engine carefully and you will most likely find the trouble spot.

Last edited by Cougar4; 08-12-2012 at 11:29 AM.
Cougar4 is offline   Reply With Quote
Old 08-11-2012, 09:24 PM   #3
Blubullt02
Scooby Newbie
 
Member#: 221344
Join Date: Aug 2009
Chapter/Region: MAIC
Location: tucson az
Vehicle:
2002 impreza wrx
wrx rally blue

Default

Ok so it turns out that there was a rat living under my back seat and it chewed the wires going from the fuel pump pressure controller to the fuel pump under the car above the gas tank. It was shorting. Thanks for the help!
Blubullt02 is online now   Reply With Quote
Old 08-12-2012, 11:31 AM   #4
Cougar4
Scooby Specialist
 
Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:
2001 LL Bean Outback
Winestone

Default

Well that wasn't what I was expecting to be causing the trouble but stuff happens. Thanks for the update and glad you found the trouble.
Cougar4 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 10:24 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.