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
 

Photo
- - - - -

1999 Subaru Legacy Outback problems...help!


  • Please log in to reply
3 replies to this topic

#1 philsxj

philsxj

    New User

  • Members
  • Pip
  • 2 posts
  • cary nc

Posted 10 February 2006 - 08:07 PM

Hey Guys I'm new to this forum and I'm in desparate need for some technical advice. I'VE BEEN working on this 1999 Legacy Outback 2.5l DOHC manual trans. It has three problems (1) Check engine light on...P1507 (2) stalls
(3) misfires bad

These three problems all seem to happen within the first 1/4 mile when car is cold. It doesn't need to be cold outside just a cold engine. If I clear the code the light goes out and stays out.

The strangest thing is when it misfires,the front two cylinders are both missing. Cyls #1 #2. No ijnector pulse. Injectors do have 12v supply, but no ground toggle. If I turn off the engine, wait 60 seconds.. start it back up....Problem is gone until it get cold and driven for about 1/4 mile. I thought it was the computer..replaced it and still happens.

Any thoughts/ ideas would be great

Thanks

Phil

#2 lmdew

lmdew

    _______

  • Members
  • 2,825 posts
  • Colorado Springs

Posted 10 February 2006 - 09:25 PM

P1507 is the Idle control solenoid on top of the throttle body. Google that code to confirm. The assy comes off with a couple of screws. The misfire could be caused by several items, Injectors, plugs, plug wires. Take the easy stuff first. I'd correct the P1507 first and then see what comes up.

#3 sea#3

sea#3

    Subaru Fanatic!

  • Members
  • 354 posts
  • Vancouver Canada

Posted 10 February 2006 - 11:08 PM

Electrically the IAC (P1507) and the injectors have a common connector , I would check the connector that goes from the firewall to the engine , there are three connectors on the right side of the motor . Pop them aprt and see if there is any corrosion . Should be a 16 pin connector , concentrate on the two centre rows
Hope this helps
SEA#3

#4 philsxj

philsxj

    New User

  • Members
  • Pip
  • 2 posts
  • cary nc

Posted 11 February 2006 - 04:10 PM

Well I just got back from the shop and I'm pretty sure I fixthis one. I found some info on the web and on IATN that there is a connection between the ecm needing to see wether the trans in gear on neutral and the ability to control the idle. The code for P1507 was set bec ause the gear select/ neutral was bad. No continuity while in gear.
The stall was from the ecm not being in control of the idle
The missing cyl #1 #2 was a fail safe condition set by the computer.

In short..replaced the switch and all is good

Thanks for your help

Phil




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users