Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

what's up with my fuel pump relay?

  • Please log in to reply
1 reply to this topic

#1 teasdam


    USMB is life!

  • Members
  • 126 posts
  • Eaton, CO

Posted 12 February 2004 - 01:56 PM

I've just rebuilt the ea82 in my 1990 loyale and I've got the engine back in the car, but I wasn't able to start it up because the fuel pump wouldn't run. I checked the relay for power, and the two leads do have power. However, when I touched the test light to the ground (which goes to the ECU), the pump immediately began to run. So I temporarily setup to where I have an extra wire jabbed into the ground connector, and then grounded to the body. This way, the pump runs, but it runs all the time (when the the ignition is ON). I don't see this as a problem unless I constantly have the ignition on without the engine running, so I was thinking of setting the relay ground up like this pernamently. Am I asking for trouble by doing this? Or maybe is there some other fix that would work better? I zapped some electronics earlier and was thinking maybe it affected the ECU in some way to cause this? No other electrical problems apparent at this time though.

#2 MilesFox


    Catch this Fox!

  • Members
  • 10,686 posts
  • Madison/Milwaukee, WI

Posted 12 February 2004 - 06:25 PM

you can go with that, but put a switch in-line so you can turn off the pump if the key is on for whatever reason, not running

i myself would just run a hot wore, with a switch to the STRIPED WIRE on the pump, and the other one ground to body

you can run your wire along or under the center console, from the back of the console under the carpet, and under th4e seat thru the brake or fuel lines grommets

the dist triggers the pump when its turning, but it comes on for 2 seconds as soon as you turn the key to RUN(to pressurize

try connecting the GREEN TEST CLIPS together, then turn the key on, the pump should cycle on and off. if it DOES cycle, your problem lies elsewhere than the relay

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users