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Old 05-26-2011, 09:49 PM   #1
txl146
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Default DIY: how to replace Fuel Pressure Regulator (FPR)

Anyone wants to see a DIY write up on how to replace FPR? I know it a simple install for most of you, but figured I would ask in case anyone wants to see.

I will post pictures along with instruction if anyone wants to see when I work on my car tomorrow. I've searched, but surprisingly haven't found a write up on FPR install.

Parts I bought:
99074AA010 HOSE FUEL $6.85
16699AA000 O-RING $5.96 (most overpriced O-RING ever)
Used FPR with 10k miles $25 shipped


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Last edited by txl146; 05-28-2011 at 12:50 AM.
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Old 05-27-2011, 08:30 PM   #2
txl146
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Default

Here are some pictures from today's install.

Before you begin, make sure to wear safety goggle as you will be working with fuel line. I pulled E/G fuse from fuse box and cranked the engine few times in order to depressurize the fuel lines.



FPR is located right next to air intake box on passenger side:


Remove 2x 10mm bolts / loosen up clamp on the fuel line and slowly wiggle it out to remove FPR. Careful not to damage vacuum line which is connected to intake manifold.


Most important step during the install: use zip ties to secure vacuum line otherwise the line will pop off eventually (well known problem). Do this if you don't want your engine to blow up!


Replace O-ring if necessary:


Installed:


Write up on how to remove GBOD can be found on post 7 and 8 (don't think it's necessary to remove GBOD).

http://forums.nasioc.com/forums/showthread.php?t=964852

Last edited by txl146; 05-28-2011 at 12:52 AM.
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Old 05-27-2011, 08:51 PM   #3
wrxdrvr
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Note, be careful not to over tighten bolts. If it leaks you probably F'd up the O ring do again don't just tighten bolts...
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Old 05-27-2011, 09:08 PM   #4
Concillian
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Note that this is 10x more complicated if you still have green brackets. See the injector DIY for passenger side green bracket removal.
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Old 05-27-2011, 10:09 PM   #5
txl146
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Default

Just added a link to my write up on injector replacement, which has DIY for GBOD.

Here is a picture of GBOD - I had mine removed a while ago, but is it really necessary to remove GBOD?

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Old 05-27-2011, 10:19 PM   #6
Concillian
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Looks like it might not be, I thought they covered more. Mine haven't been on there for many years, sorry.
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Old 05-27-2011, 10:32 PM   #7
wrxdrvr
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No, you don't need to remove the GBOD...
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Old 05-27-2011, 10:34 PM   #8
txl146
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Concillian,

No problem. I can't even remember what I did with my driver side GBOD. I remember I put driver side GBOD back on.
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Old 08-13-2012, 12:54 AM   #9
johndabrit
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Bump for clear and concise write up. What was the symptom which made you replace the fpr?
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Old 08-13-2012, 02:01 PM   #10
Jirv311
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I would also add that you should maybe put a small dab of lube or dish soap on the o-ring before putting it in. Just like injectors.
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Old 09-27-2012, 01:52 PM   #11
txl146
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Quote:
Originally Posted by johndabrit View Post
Bump for clear and concise write up. What was the symptom which made you replace the fpr?
P0171 CEL.... see my post here:

http://forums.nasioc.com/forums/show...475620&page=19
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Old 10-31-2013, 05:39 PM   #12
ekaplin
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Can I use a generic O-ring? or does this has a very specific gauge/size?
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Old 10-31-2013, 08:11 PM   #13
Concillian
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I don't know the size, but fuel o-rings are VITON. Regular rubber o-rings will eventually fail when used to seal fuel. So you can't just use a generic material o-ring.
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Old 07-15-2014, 11:24 PM   #14
snow_bound26
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Got to bring this thread back up.
I have an 05 9-2x Aero. I am getting a P0420 and have replaced the following all within the last 600 miles:
Front cat
Rear O2
A/F ratio sensor

Have also had the exhaust and turbo leak tested. The cat has had an efficiency test as well.

During all of my research I found an article that mentions a faulty FPR can cause a P0420, however I am not able to find out any further info as to whether this is true or if the FPR itself causes it, or if a bad vacuum line might.

Has anyone had any experience with this? If this can happen, is there a test I can do that will prove it's either the FPR or a vacuum line?
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Old 09-23-2014, 02:55 AM   #15
pyrowipe
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would love to see the images that have all broken, anyway to link them back in?
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Old 09-23-2014, 03:25 AM   #16
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Quote:
Originally Posted by pyrowipe View Post
would love to see the images that have all broken, anyway to link them back in?
try pm the op??
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Old 09-30-2014, 01:30 AM   #17
txl146
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It's up now.
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Old 10-01-2014, 03:28 AM   #18
ranger23
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nice.
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Old 11-29-2015, 09:27 PM   #19
Titter
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thanks for the write up

does anyone have the part number for the oem fpr?
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Old 11-29-2015, 10:00 PM   #20
ImprezaLover94
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Quote:
Originally Posted by Titter View Post
thanks for the write up

does anyone have the part number for the oem fpr?
Try using Subaru's parts website.
http://parts.subaru.com/a/Subaru_200...11-050-04.html
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Old 11-30-2015, 11:58 AM   #21
Titter
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thanks man!
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Old 12-11-2017, 05:39 PM   #22
hypnonotic
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Sorry to necro, but can you reup the pictures to a better host?
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