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Subaru Legacy/Outback Wagons Maintenance & Repair

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Comments

  • ateixeiraateixeira Posts: 72,587
    Bill: if the spark plug wires are original, change those first. Then maybe the spark plugs themselves, and finally the ignition coil.

    All those things affect the spark.

    The other issue is fuel - so fuel filter, too. Beyond that it gets more complicated and I'd defer to a good mechanic.

    -juice
  • You might be better off at this point taking it to a dealer or somewhere that can verify that the previous mechanic didn't screw something up. Subaru will be unlikely to warranty something done by a non-Subaru mechanic, and you might need the information to hold them accountable.
  • Changed the plugs and wires last spring. Changed the fuel filter last summer. Changed the cat last summer.
  • ateixeiraateixeira Posts: 72,587
    Next thing to try is the ignition coil. Good news is it's only about $80, try 1stSubaruParts.com. They even take Subaru Bucks if you have a Chase Subaru credit card.

    -juice
  • All, thanks for the input. talked to my mechanic. apparently there was an old alarm installed, i never had an alarm key or key-less entry, so i had no idea. he had to find it and remove it, as i don't use it anyway. no it is rocking. Hope this helps someone else diagnose a problem in the future.
  • xwesxxwesx Fairbanks, AlaskaPosts: 8,273
    Glad to hear they hunted it down. It did sound like a keyless entry/alarm issue, so I was just about to ask if you have had the car since new. Glad I read all the way to the bottom of the thread! :blush:
  • fibber2fibber2 Mid Hudson Valley, NYPosts: 3,729
    Bill,

    You have a tough one there, but much of it makes sense given the order in which the events occured. It could all stem from an evap system failure, so that is what I would go after first. It is a complex system, so this is just one possible senario:

    The evap system captures excessive vapors in the tank, stores them in the charcoal canister, then routes them to the intake manifold. It can only hold so much, and is only supposed vent to the intake at certain times, otherwise it will screw up the mixture. The vent that leads into the canister is typically located up in the filler neck, which is one reason why you should not overfill your tank. Flooding the canister can cause multiple valve failures. Or maybe it has some other problems unrelated to something you did....

    So lets consider an evap system malfunction as the trigger issue. It now dumps fuel into the intake at the wrong time. The oxygen sensor sees too much fuel, and plays havoc with the mixture. The cat cannot compensate, so the system flags the cat as bad. Maybe it now is, or again it could be just an instrumentation error.

    You replace the cat, but do not address the primary cause. Fuel system pressures, particularly in the tank itself vary wildly. Sediment breaks loose from the walls, and either clogs the fuel filter, or get thru, partially clogging fuel injectors. Lean mixture gives the misfire code, due to uneven cylinder firing in two of four (uneven power output), and triggers the lean mix indication as the oxygen sensor has no clue what the heck is going on, or how to compensate.

    Solution - in this order: Get professional help for the evap system. I doubt many could tackle this one. Then change the fuel filter. Clear the codes and see what shows up now. Consider getting an injector cleaning. You might have to end up changing one or more. If you cooked them, you might end up changing the O2 sensor, and the cat again.

    Steve
  • lakepoplakepop Posts: 221
    Anyone mess with upgrading/replacing the horn on a late model Outback.

    Have a 07 that I would like to put some Hella horns on. It looks like I need to REMOVE the bumper facia to get at them.

    Anyone shed some light on this......comments are helpful....thanks.
  • paisanpaisan Posts: 21,181
    Don't replace, just add. What you can do is wire in some Hella Supertones behind the grille with a relay. Use the trigger wire for the relay tapped off the current horns or the horn relay under the hood.

    -mike
  • lakepoplakepop Posts: 221
    Mike...my plan is to disconnect the wires from the existing OEM horns. Connect those wires to extensions to a new relay and wire in the horns off that relay. Horns will be mounted behind grill in front of radiator.

    Now all that part is easy...its the getting to the OEM horns as a starting point that is currently my problem. I have pulled the grill and the front part of the air intake....NADA horns......They are apparently down under everything somewhere behind the fog lights. I really am reluctant to pull the bumper facia on this brand new 07 Outback Ltd for fear of messing something up.
  • paisanpaisan Posts: 21,181
    Why not add the Hellas in addition? I always leave the OEM horns in place and run the trigger for the Hella relay off the relay for the OEMs in the relay box under the hood.

    -mike
  • lakepoplakepop Posts: 221
    Mike...a doable plan ...BUT ..I do NOT know where the OEM horn relay is. I assumed it was located near the OEM horns...which I am having trouble getting to. I do not have access to a wiring diagram or a schematic of where stuff is located.

    By the by...I do appreciate your inputs . As a long time member I have always respected your knowledge of Subes....Thanks.
  • paisanpaisan Posts: 21,181
    The relay isn't down near the horns. There should be a black box with a cover on it. In there, will be a horn relay. What you do is strip a wire down leaving about 1" of exposed wire, and you basically jam it in with the relay on one of the 4 connections (you have to figure out which connection is hot when you hit the horn button) and this wire you then connect to the trigger on the hella relay. If I was in front of your car I could do it in about 5 minutes!

    -mike
  • lakepoplakepop Posts: 221
    OK.....I'll check under the hood tomorrow and see if I can figure it out. I'm guessing that it will be somewhere near the main fuse panel on the drivers side under the hood. Not sure about figuring out which of the 4 connections would be the right one....the wire stripping/jamming doesn't worry me ...I'll keep you posted.
  • paisanpaisan Posts: 21,181
    If you have a test light, pull the relay and test the 4 connections to see which is the +12v that comes on when you hit the horn. That's how I figured it out on mine

    -Mike
  • kenskens Posts: 5,869
    I've read about one person who was able to get to the OEM horns by going from underneath the vehicle. As you have correctly observered, the horns are located behind the passenger side fog light. You can unbutton the plastic shroud from underneath and reach up into the area. However, you will have very limited visibility and working space.

    Ken
  • lakepoplakepop Posts: 221
    Mike ...located the relay.....I'll probably wire via your suggestion......now if the weather would warm some....:)

    Thanks again !
  • fibber2fibber2 Mid Hudson Valley, NYPosts: 3,729
  • paisanpaisan Posts: 21,181
    No problem, I use the same method for hooking up driving lights to my high beams, works quite well.

    -mike
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