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Old 03-07-2016, 09:43 PM   #1
Bestswat
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Default Oil Control Valves

Hi everyone,

I want to clean my oil control valves, can anyone shed some light on how I could do that? I have a 2011 STi. Thanks
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Old 03-08-2016, 09:41 AM   #2
spoolinsti05
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Why? And what valve are you speaking of? Avcs oil pressure bypass valve? Cylinder head oil jacket valve?
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Old 03-08-2016, 10:34 AM   #3
Nightmaresmk
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just buy new. they are only $100
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Old 03-08-2016, 01:11 PM   #4
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Quote:
Originally Posted by Nightmaresmk View Post
just buy new. they are only $100
This. The OCVs are the heart of the AVCS system, and they need to be working properly to ensure overall vehicle operation.

As was said, they're only ~$100/each, anyhow, and they are a 75k wear item, so, definitely worth replacing. Besides - They're super easy to replace!
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Old 05-16-2019, 11:04 AM   #5
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Quote:
Originally Posted by MrTris View Post
This. The OCVs are the heart of the AVCS system, and they need to be working properly to ensure overall vehicle operation.

As was said, they're only ~$100/each, anyhow, and they are a 75k wear item, so, definitely worth replacing. Besides - They're super easy to replace!
Forgive my ignorance, but why/how are they a wear item? This is the first I've heard of these valves in several years of browsing the forums almost daily.

I see they control the AVCS operation, are there ways you can tell if they're particularly gummed up and giving you trouble? Or is it just a case of it either works or doesn't?
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Old 05-16-2019, 12:39 PM   #6
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Quote:
Originally Posted by raisingAnarchy View Post
Forgive my ignorance, but why/how are they a wear item? This is the first I've heard of these valves in several years of browsing the forums almost daily.

I see they control the AVCS operation, are there ways you can tell if they're particularly gummed up and giving you trouble? Or is it just a case of it either works or doesn't?
This.

when did these become wear items?
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Old 05-17-2019, 09:02 AM   #7
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Quote:
Originally Posted by Waddlz View Post
This.

when did these become wear items?
Yes when? 156k on mine MY'08 LGT. Then again, changing my oil every 3K like clock work for the last (nearly) 12 yrs has probably helped too. I've never heard of them being a required maintenance or ware item. Believe you will see a DTC code if faulty (camshaft position). While I am a proponent of proactive maintenance, I don't go looking for problems. If you have a good reason to think they are causing issues and have the $$, you can change. If you are going to bother taking them out, might as well change.

Last edited by shadowsports; 05-18-2019 at 11:39 AM.
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Old 03-08-2016, 05:20 PM   #8
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Where do they sell them for $100? And how can I go about replacing them
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Old 03-08-2016, 06:02 PM   #9
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Quote:
Originally Posted by Bestswat View Post
Where do they sell them for $100? And how can I go about replacing them
Try here: http://parts.bestbuysubaru.com/p/Sub...wd=&origin=pla

$75/pop - Cheaper than mine for the 05-09 LGT (for whatever reason)


Sidenote/Shamless Plug: Heuberger Subaru kicks ass.
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Old 03-08-2016, 06:14 PM   #10
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Upper right, #2. You'll find them behind the TGVs. Shoudn't take but about an hour to replace both, altogether. You'll need to be prepared to tug on 'em a little bit, too, as, they like to stick in their spot. It's OK, just pull straight out!

You'll need a 10mm quarter or three-eighths drive, and maybe a 6in extension. Best use a stubby ratchet, no need for a full length - not alot of force or leverage needed.
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Old 05-14-2019, 07:30 PM   #11
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Thanks guys. I may need to do this too.
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Old 05-16-2019, 11:42 AM   #12
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One last quick question. Are they the same part number for each side? Are they both identical?
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Old 05-16-2019, 11:49 AM   #13
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Quote:
Originally Posted by cdigerlando View Post
One last quick question. Are they the same part number for each side? Are they both identical?
The intake OCV is the same for both sides, the exhaust OCV is specific to each side of the motor.
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Old 05-16-2019, 12:23 PM   #14
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Quote:
Originally Posted by Turpid Porpoise View Post
The intake OCV is the same for both sides, the exhaust OCV is specific to each side of the motor.
Perfect thanks! Are the exhaust OCVs something you have seen needing replacement with a similar 75k frequency?
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Old 05-17-2019, 09:52 AM   #15
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Quote:
Originally Posted by cdigerlando View Post
Perfect thanks! Are the exhaust OCVs something you have seen needing replacement with a similar 75k frequency?
My STI only has 73K miles lol. I've only replaced one of them and it's because I broke the electrical connector off of it while pulling the motor.

I'd assume some seals can wear down and begin to leak from heat cycling and the solenoid itself will eventually wear out but 75K miles seems early. I wouldn't worry about replacing them unless you have spun a bearing or are having issues directly related to the OCV.
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Old 05-17-2019, 10:34 AM   #16
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The codes don't seem to make a distinction between exhaust or intake sensor issues. In fact it could even be an issue with the pully or the sensor itself? So it sounds like I'll just be replacing parts till the code stays away, which I don't like doing.
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Old 05-17-2019, 10:45 AM   #17
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Quote:
Originally Posted by cdigerlando View Post
The codes don't seem to make a distinction between exhaust or intake sensor issues. In fact it could even be an issue with the pully or the sensor itself? So it sounds like I'll just be replacing parts till the code stays away, which I don't like doing.
What code are you seeing?
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Old 05-17-2019, 11:09 AM   #18
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P000d
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Old 05-18-2019, 11:44 AM   #19
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Another suggestion. You can swap them and reset the ECU. See if the codes follow. Drive the car a few hundred miles till readiness codes reset and see what happens.

Isolating the cause might be difficult depending the on the scanner you have. That DTC is generic.

In addition to dirty oil or contamination, voltage irregularities are also a common cause for these codes. You are on the right track, but are going to have to spend some $$ and time wrenching to figure it out.
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Old 05-20-2019, 12:25 PM   #20
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Thanks. I already ordered the parts. I am due for an oil change in 500 miles. The codes have cleared on their own this time. I may change the oil, hold on to the parts, and wait to see if the codes come back before installing them at this point.
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Old 07-09-2019, 04:57 PM   #21
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I am getting P000D B Camshaft Position Slow Response Bank 2

I have been chasing this but gave up since I am limited on time and money. I'm ready to open this can of worms again. I've already done oil changes, removed filters on banjo bolts and replaced sensors. I need to know now which part number/OCV i need to replace. Bank 2 B position on P000D i thought was intake but now i hear it is passenger side exhaust. I'm not 100% sure which to buy now. It is either 10917AA070 or 10917AA060 I think.

on a side note, i accidentally bought part 10921AA140.. meh..

on another side note, i hear you have to remove the timing belt cover and maybe the j pipe to gain access to the passenger side exhaust ocv?

Last edited by 4ChUnZFooL; 07-09-2019 at 05:07 PM.
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Old 07-10-2019, 02:07 PM   #22
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“A” camshaft is intake
“B” camshaft is exhaust

*edit: I’m not 100% sure that the side I have labeled the banks is correct but that shouldn’t matter until you actually have to order a new valve holder assembly, either way diagnosing is still the same as I mentioned below*

**CORRECTED** For USDM:
Bank 1 is passenger side
Bank 2 is drivers side

P000”D” refers to exhaust OCV on the drivers side.

Swap the exhaust oil control valves (not the holder assembly, just the valves) from one side to the other and see if your code changes to P000”B”.. if it changes you have a bad valve.

Last edited by MikeyThumbz; 07-10-2019 at 04:28 PM.
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Old 07-10-2019, 04:08 PM   #23
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Quote:
Originally Posted by MikeyThumbz View Post
“A” camshaft is intake
“B” camshaft is exhaust

*edit: I’m not 100% sure that the side I have labeled the banks is correct but that shouldn’t matter until you actually have to order a new valve holder assembly, either way diagnosing is still the same as I mentioned below*

Bank 1 is driver side
Bank 2 is passenger side

P000”D” refers to exhaust OCV on the drivers side.

Swap the exhaust oil control valves (not the holder assembly, just the valves) from one side to the other and see if your code changes to P000”B”.. if it changes you have a bad valve.
I am having a hard time trying to remove the ocv on the passenger exhaust side. Seems to be a few things in the way. I am a bit confused. p000D refers to ocv on drivers side, but you said bank 2 is passenger side?

Last edited by 4ChUnZFooL; 07-10-2019 at 04:24 PM.
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Old 07-10-2019, 04:26 PM   #24
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Quote:
Originally Posted by 4ChUnZFooL View Post
I am having a hard time trying to remove the ocv on the drivers side. Seems to be a few things in the way. I am a bit confused. p000D refers to ocv on drivers side, but you said bank 2 is passenger side?
Yeah I’m sorry man I wasnt 100% sure of which side was bank 2 and edited to mention that .. I think you’re correct though and bank 2 is the drivers side. Either way it shouldn’t matter if you are just swapping the valves from the assembly and not the entire assembly itself. I don’t THINK it’s necessary to replace the “holder” if just the valve is bad or if it is recommended to swap out the entire assembly, hopefully someone else here may know..
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Old 07-10-2019, 04:31 PM   #25
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Quote:
Originally Posted by MikeyThumbz View Post
Yeah I’m sorry man I wasnt 100% sure of which side was bank 2 and edited to mention that .. I think you’re correct though and bank 2 is the drivers side. Either way it shouldn’t matter if you are just swapping the valves from the assembly and not the entire assembly itself. I don’t THINK it’s necessary to replace the “holder” if just the valve is bad or if it is recommended to swap out the entire assembly, hopefully someone else here may know..
the trick is getting the valve on the passenger side out. I couldnt pull it out since i had stuff in the way that looked unmovable. Then i read on another form that you need to take out the timing belt cover, maybe remove exhaust manifold or j pipe. Unless there is something i am missing or if there is a trick to it?

Last edited by 4ChUnZFooL; 07-10-2019 at 04:36 PM.
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