How to: Injector install / Replacement (With Pics!)

THIS IS FOR THE MY 05-06 Legacy GT SIDE-FEED ONLY

 

It's relatively simple, but pictures do not hurt. After searching I couldn't find any and so without further ado, I present to you a how to.

 

Set aside about two hours and you can take your time.

 

Pull your car up to a nice shaded area or into garage. Pull out your 15 amp Fuel Pump Fuse. Start the car and run it until it dies, so the fuel pressure is released.

 

Starting with the Passenger Side:

 

- Remove your air intake duct. If you want, you could also remove the entire intake air box for more elbow room. I have an aftermarket intake, so I didn't have to move it.

 

- You will need to remove the turbo coolant reservoir to access the rear pass. injector. Start with the bolt a the bottom. Then unclamp the two hoses going towards the radiator. Fit the smaller hose into the bigger hose so coolant doesn't spill while you set it aside some where. Now just lift the reservoir upward and onto its side.

 

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0072.jpg

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0074.jpg

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0075.jpg

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0076.jpg

 

The next steps will be repeated for all the injectors.

 

- Grab a T25 Torx socket and remove the screw that holds down the injector.

 

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0077.jpg

 

- Pull out the bracket that hugs down the injector and Unclip the harness. For both rear injectors, it helps if you have your thumb press and hold the clip, while using a flat head screw driver to lift it up.

 

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0080.jpg

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0089.jpg

 

- Pulling the injector out. This is the hardest part because the plastic body of the injectors are very soft and could tear easily if not carefull (You lose more money on your rebate/core if the plastic body is damaged , I.E. Deatwercks rebates). You'll want to wrap up the tips on a some pliers with electrical tape or duct tape and gently grasp the top of the injector and pull. I also used a towel rag as an extra precaution if fuel where to spit out. ( it didn't).

 

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0081.jpg

 

- Prep your new Injector. Take the grey caps off your oil injector and fit onto your new one. A flat head will work fine. Take some Synthetic grease that was provided and lather over the two O-rings or use some engine oil. Make sure your hands are clean !

 

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0082.jpg

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0094.jpg

 

- Install your new one. Make sure the area is clean and no debris is inside the fuel injector housing. Install it in the same orientation as the old one faced. (the rears, clip faced towards the firewall. the fronts, clip faced towards the radiator). Make sure the injector snaps into place and that the bracket that hugs onto it, sits flush ontop of it. I used my adapter screw driver to push it all the way in. Push on top of the grey cap.

 

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0095.jpg

 

- Reinstall your bracket with your T25 screws and plug everything back in. you're done !

 

http://i344.photobucket.com/albums/p330/ibr_adam09/Injector%20install/SAM_0096.jpg

 

 

It'll take a few seconds to get the car started again on the first try.

Injector replacement 4th Gen Legacy Walk-through.pdf

Edited July 17, 2018 by SBT
Loaded photos for posterity's sake - Added PDF

Thanks for the write up!

What are the good aftermarket fuel injectors? I do not necessarily want to go to a large flow rate injector, because of the extra fuel consumption. I just wonder if there are advantages from one fuel injector to the other based on other parameters that affect performance, such as fuel atomization, spray pattern, etc.

good write up, ill be upgrading mine soon and this will help a lot. Is there any risk of damage to your pump pulling the fuse like that and letting it cut out?

What are the good aftermarket fuel injectors? I do not necessarily want to go to a large flow rate injector, because of the extra fuel consumption. I just wonder if there are advantages from one fuel injector to the other based on other parameters that affect performance, such as fuel atomization, spray pattern, etc.

 

 

DW are the most popular and reliable aftermarket upgrade. There are others, but not sure if they do any rebate programs. DW are also recommended by tuners. (easy to tune with)

 

good write up, ill be upgrading mine soon and this will help a lot. Is there any risk of damage to your pump pulling the fuse like that and letting it cut out?

 

Not at all. Pull the fuse before starting the car. The engine will only run with whatever fuel is left in the injector housing and then dies.

Thanks for the write-up on how to do this. Have a P0302 code, before I change plugs I figured I'd swap the injectors on cylinders 2 & 4, see if the code moved.

 

Ran into trouble getting a grip on the injectors to pull them out with pliers, noticed the holes on each side. Figured those were probably used for a specialty tool made for pulling the injectors, so I made a puller out of a heavier duty coat hanger and one sturdy zip-tie, worked like a charm.

 

Having trouble attaching pics today, so here's a description of how. Use one of the hangers that has the cardboard tube, discard the tube. Cut off both bend ends so you have two equal length straight pieces connected by the curved hanger end. Using a pair of pliers, bend a 1/4 tip 90 degrees to the end of each side. Then bend an offset (two bends required each side) into each end so that the tips can fit into the injector, while the two hanger wires can snug together just above the injector. Cinch the zip tie around the two wires, trim the excess.

 

Slide the zip tie up towards the hand grip (hanger) end while inserting the bent tips into each side of the injector. Slide the zip tie down to tighten the tips in place in the injector. Hold the puller with one hand near the injector, pull on the other end, should work fine. You can also bend one of the handles on a binder clip as shown, but the hanger is the easier solution.

Edited September 10, 2012 by BoostWagon

Ah, makes sense. thanks for the added info

So its been a month, probably about 2,500 miles with no recurrence of the P0302 code sine I swapped injectors in cylinders 2 & 4. Once these codes clear, do they stay reset until a certain amount of time passes?

If you cleared the code, its only going to come back if the ECU suspects there's a problem.

 

No, codes don't just come back after a certain amount of miles.

THIS IS FOR THE MY 05-06 Legacy GT SIDE-FEED ONLY

 

 

I need to replace an OEM fuel injector on cylinder #4 with another OEM injector on my 05 LGT, no performance upgrades. Does this mean the walkthrough pics won't apply?

 

Thanks

The process will be the same. In reality the DW injectors are just modified stock injectors.

Nice write-up!

 

Coming from the world of top feed injectors on 2.0 WRXs, I can't help but feel a little relief at seeing the ease of this process; Lord, how I hated dealing with the infamous GBODs on my other cars.

 

No upgrades of this sort planned at the moment, though. Perhaps some day...

Edited January 23, 2013 by J. Steinbeck

Just a heads-up, be careful pushing down on that gray cap when reinstalling the new injectors. I cracked one of mine that was acting stubborn.

Does anyone know where to buy new screws? mine look really old. Will ask the dealer on monday...

I'm sure ace hardware will have the same length and thread type. Not sure if same torx head. Ace hardware saved my ass a few times

I had to tap my screws. They were stripped out. But in the end it was pretty simple.

im going to be doing mine in a week and a half along with a dozen other things (pump, turbo, tgv deletes, inlet, clutch, flywheel, etc.) and it makes me feel a lot better seeing this and the ease of it. Awesome write up! will prolly look at this about 20 times while doing it. lol

will prolly look at this about 20 times while doing it. lol

 

I do the same!

Is the 15amp fuel pump fuse in the engine bay or the cabin? I searched the engine bay when doing my fuel pump and I could not find it anywhere. I'm pretty sure I checked the fuses inside the car as well but I gave up and just removed the fuel pump anyways so I never figured it out. I will be doing the injectors tomorrow so I would really like to know exactly where it is.

It's in the engine bay. Mini blue fuse along the side and corner.

It's in the engine bay. Mini blue fuse along the side and corner.

 

Wow I got it and I have no idea how I missed it last time. Thanks.

Thanks for the walk-through. Added loaded photos in case the linked ones fail.

Also, you did the work in writing this up, so I took the liberty of converting this to a .pdf so it's easily downloadable, and posting it on ScoobyMods.com. Located here

nice job SBT.

Cool. Glad to be of help. Look forward to making more installs.