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Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****
Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****
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Old 08-22-18, 06:28 AM   #961
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

One of you who has this issue is going to need to take the lead and figure it out. There has to be something causing it. I can play on all traction modes without any issues as many others. There’s a huge majority with no issues at all.

I still strongly believe as I’ve mentioned many times before that it’s a bad sensor. SAS, ABS, etc. Something has to be bad some where.

I’ve had a bad MAF that was reading all values within spec when evaluating it individually, but as a whole, it screwed my AF Learning significantly to cause a lot of issues. If I had tempted faith and replaced it 2 years sooner, I would have saved a lot of troubleshooting time and tuning expenses. I’ve had an O2 sensor read correctly when tested, but it still ended up being bad. Anyways, there are more examples I can explain with this car, but you get the picture.
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Old 08-22-18, 06:53 AM   #962
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

I literally never have the traction control on
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Old 08-23-18, 06:21 PM   #963
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

Thanks guys, going to make the big leap in getting that leaking rack replaced along with the poly bushings.

That passenger side bushing, I read that it's a direct fit although it doesn't seem so at first. Any update to this?

I also should replace the PS pump, but I heard that Subaru did some silent revisions for improvement. Is 34430FG040 the latest one?

Thanks
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Old 08-23-18, 06:33 PM   #964
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

Quote:
Originally Posted by inpuressa View Post
Thanks guys, going to make the big leap in getting that leaking rack replaced along with the poly bushings.

That passenger side bushing, I read that it's a direct fit although it doesn't seem so at first. Any update to this?

I also should replace the PS pump, but I heard that Subaru did some silent revisions for improvement. Is 34430FG040 the latest one?

Thanks
The passenger bushing is a direct fit. It was my misunderstanding. The stock bushing is very soft and flexible, it didn't seem it would fit at first glance when comparing the stock rubber to the poly version, but it fit perfectly.

2019 Subaru STI TYPE RA 2.5L TURBO 6MT Pump-power steering. Oil - 34430FG040 | Subaru Parts Warehouse, Branford CT

34430FG040 is the one used on the 2019 Type RA
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Old 08-28-18, 05:20 PM   #965
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

There is a fix involving an arduino with canbus io’s and programming to increase the steering angle sense back to stock...

https://forums.nasioc.com/forums/showpost.php?p=44302713&postcount=512

https://www.google.com.au/search?q=subaru+arduino+can+steering+wheel+angle&i e=UTF-8&oe=UTF-8&hl=en-gb&client=safari

Last edited by bigBADbenny; 08-28-18 at 09:38 PM.
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Old 08-29-18, 12:03 PM   #966
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

makes you wonder why everyone isn't having issues then...
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Old 08-29-18, 12:19 PM   #967
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

I am also wondering how many are driving with the traction control off all the time...
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Old 08-30-18, 07:39 AM   #968
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

good point
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Old 09-20-18, 01:21 PM   #969
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

I was finally able to work on my car this week.
Few things I found out:

1. Those fittings for the hard line connection was a pain. Get yourself a set of crowfoot tool and some creativity

2. I bought the superpro bushings, but the passenger side was a bit too big as indicated on the pic you see on this thread. I was told that this was ok, and the part fits, but the steering rack had play when I torqued down the bolts. I measured the rack body and found that the new one was about 0.75mm smaller in diameter than the old one. This could be the reason for the play. I just used the OEM one(the new and old OE bushing is the same part#), and the play went away. This will have to do for now. Is this the reason why whiteline has two different bushings in their kit?

3. Moving the passenger side bolt that holds the control arm to the cross member will make things easier to get the rack out/in. I also swapped my control arms to the 2011 one, so it was part of the process anyway.

Took the car out for a test drive, and I need to center the steering wheel one notch. But the car felt really responsive, almost like a new car The steering felt heavier, due to the increased ratio, but I like the feeling.

PS. I hate those hard line connectors

Last edited by inpuressa; 09-20-18 at 01:25 PM.
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Old 12-30-18, 01:48 PM   #970
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Default Re: Swap a 2015+ Rack into an earlier STI?**** Parts Update Post 1 ****

Does this solve the potential from future leaking? Meaning is the next gen rack batter built/engineered?
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