131 replies to this topic

[Arfreedom]

I had 2 bad solenoids in the emission control box. Reset the ecu and still no full boost. I switch the differential pressure sensor, rest agian send still no change.
I'm about to give up. I don't know what else to do. I ask the popular Bret on you tube from Australia to help me diagnose the code P1241. I read and even download the TT operations from subyclub and trying my best to figure this out. But I believe I went through all 11 possibilities and still nothing. What I should do? Or what can I do? I learn very well with videos. HELP!!!!!!!!!!!!!!!!! And don't tell me convert to single turbo.


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[LukeFranky]

I feel your frustration! Been there.

 

Diagnosing over the internet is hard and this thread is quite long. Let's go back to basics.

 

What symptoms are you left with now? How does the car behave?

[Arfreedom]

After all the boost leaks has been fix and confirm again confirm by a boost leak tester (smoke), I drives the car and I can hear the primary turbo spooling up when it get to about 5000rpm the bongs down or maybe fuel cut and throws a code P1241.
I have research this code and ran this code and all it’s parameters on the pc using the freessm2 software and was able to read 8 readouts out of 11.
The 2 relief valves and air controlled solenoid in the BBOD. Indeed it was the solenoid cause when I pump air through both nipples the air went straight through with no resistance so I replace it.

Drove the car again again it seems to bong down or a massive jerk when I’m in 3rd gear and climbing at just 5000rpm.
I change the differential pressure sensor yesterday, reset the computer, same thing.
From researching the thread on the operation of the twin turbo, I even downloaded it and printed it out and study that page by page. And I believe I change everything......So I don’t know what I missing  IMG_8224.JPG   443.24KB   6 downloadsor why it still behaving that way.

Again was doing some more research late last night and saw in a write up on the pills location
Mines don’t have the 2 pills by the Bov area... will attempt on that today and see

Any other help will be appreciated



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[Arfreedom]

I finally check the hose by the primary turbo with the pill in it and saw a tiny crack. Clean it and fix it
Still no boost

I change my coil packs and started to feel the car little faster but
Still not 14psi

I then clean the air intake sensor
Still no boost

I’m outta option now.
Thinking back now if it’s that pcv valve that I was told he blocked up one and redirect the other in the intake manifold. Cause I can’t see anything else could be wrong.


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[Arfreedom]

So last night/mid morning like around 3am, where the weather was around 20 degrees Celsius, the car perform strangely. The boost climb from the usual psi to 10-11psi and omg that was fast. Leaves me to wonder could be P1241 could be a intake temperature sensor??

The car does perform this fuel cut like drama from in second gear at around 5000rpm. But last night, it didn’t do that.
Still haven’t seen or read of any body successfully solving this code issue.
I guess thats why they resort to single turbo....


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[Arfreedom]

So update:- saw 2 others solve their problem (code P1241) by adjusting the secondary turbo actuator.
I have done that and I’m now hearing the relief valve for the first time in long long while, the car is revving right through but no boost getting about 4psi still.

My 3rd gear gone on the box. Have source another one and will soon put that in but I’m hearing about 4.44 gearbox with 4.11 rear diff, so not sure what I have in the rear.

I think everybody else in here give up on me as well ( well at least it feels so)
But I’ll keep writing here for others that may have to same issue as me.


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[NQRSoobee]

Arfreedom we're still reading your thread and feeling your pain with the car problems.  I don't have a turbo in my Subaru so can't help with your issues.

 

Having to rebuild / replace the gearbox due to a failed third gear reads expensive.  Good luck with the gearbox swap-over.

 

You really don't want different ratios for the front and rear differentials as that will put severe strain on the centre differential.  Such strain will quickly cause a failure of the weakest component in the drive train which will quickly lead to another expensive repair.

[LukeFranky]

I have blown a couple of gearboxes. I got a 6 speed now. Mine has a few mods and gets a beating on the track.

If you want to try and rebuild your box, I have numerous parts.

Also, been reading but can't offer much advice.

[Arfreedom]

Arfreedom we're still reading your thread and feeling your pain with the car problems.  I don't have a turbo in my Subaru so can't help with your issues.
 
Having to rebuild / replace the gearbox due to a failed third gear reads expensive.  Good luck with the gearbox swap-over.
 
You really don't want different ratios for the front and rear differentials as that will put severe strain on the centre differential.  Such strain will quickly cause a failure of the weakest component in the drive train which will quickly lead to another expensive repair.

I know but they telling me that once the shaft from the gearbox fits, then it shouldn’t be a problem. So I’m waiting on the mechanic to drop off the car


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I have blown a couple of gearboxes. I got a 6 speed now. Mine has a few mods and gets a beating on the track.

If you want to try and rebuild your box, I have numerous parts.

Also, been reading but can't offer much advice.

Was your gearbox 4.11? Cause that is what I have and the 3 gear gone. Was looking to see if they have some sort of rebuild kits but can’t find any


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[LukeFranky]

Yeah, 4.11 ratio.

 

Where are you located? Let me know what parts you might need and we could arrange something.

[Arfreedom]

Yeah, 4.11 ratio.
 
Where are you located? Let me know what parts you might need and we could arrange something.

I live in a country call Barbados.
However the mechanic advise me that the 4.44 can work. So my eye brows raise but will see what happens, and I let you know. Really appreciate it Luke. Thanks


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[LukeFranky]

Oh boy, Barbados is a long way from Australia!

[Barbbachello]

I live in a country call Barbados.
However the mechanic advise me that the 4.44 can work. So my eye brows raise but will see what happens, and I let you know. Really appreciate it Luke. Thanks


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If he's saying using a 4.44 gearbox with a 4.11 diff theres going to damage to the centre diff. You CANNOT mix and match diff ratios. Double check the gearbox code (a sticker on the bellhousing) on google and look for the stamped numbers on the ring gear in the diff. 

[El_Freddo]

You could split both boxes and do a diff ratio swap.

Or grab a matching ratio rear diff and fit that.

Cheers

Bennie

[LukeFranky]

You could split both boxes and do a diff ratio swap.

 

+ 1. I've just done this. It's fairly easy.

Never mind. Just realized he meant the gearbox diff, not the rear diff. The gearbox is harder, but doable.

[Arfreedom]

Yeah so the mechanic now tells
Me I need the rear diff and shaft to match the 4.44 gearbox. Smh
I knew this was coming. Based on what you guys were saying, just wanted to hear it from my mechanic. Stupse. I suspect the rear diff and shaft going to be expensive as well. I’ll rather just rebuild the 4.11 I have.
Is there a rebuild kit I can purchase in advance before I pulled down??
It’s making a flapping noise when I put it in 3rd gear but other wise I’m driving it all now in 1st, 2nd and then 4th.

Luke Private message me if I can get parts from you. Or I can get them from Japan


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[duncanm]

I'd look around locally if I were you -- if there are any other subarus at all in Barbados, such as forester, legacy, impreza, etc.. you should be able to find a 4.44 diff to match your gearbox in a wreckers

[Arfreedom]

So I found both a 4.11 gearbox and a 4.44 rear diff. What would you do?????
change up to the 4.44 or just swap the 4.11...????


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[Barbbachello]

4.44 box and diff. Much nicer to drive with the shorter ratios

[Arfreedom]

4.44 box and diff. Much nicer to drive with the shorter ratios

Mmmmmmm interesting. Thanks


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