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Old May 25, 2021 | 05:05 PM
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Default Vacuum hose layout

Hello

I have a 99 turbo 2000 WRX that I have been trying to put back together now for an entire year and I am stuck on what I am hoping is the last few steps. I am trying to connect up the vacuum hose/ intake setup back together, some of which was already in place and some that wasn't
I have made a little diagram of how it is currently connected and I have an idea of what I need to change but an really not sure and don't wanna damage her after all the work so far.



I think that I need to
connect 5 to 7
3 should go to the return on the "BOV"
1 should go to the vacuum for the "BOV"
I have search the pages and put this together so far with what i have found from diagrams of not quite the same car, any help would be very much appreciated.
thank you
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Old May 25, 2021 | 06:07 PM
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This is all the same apart from this being a three port boost solenoid. You will need a T piece and a pill from the turbo to the actuator.

Last edited by 1509joe; May 25, 2021 at 06:10 PM.
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Old May 25, 2021 | 06:46 PM
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Above
Pipes 5, 10 and 2 go to turbo inlet pipe.
Pipes 9 &11 connect to the heads

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Old May 25, 2021 | 06:52 PM
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Old May 25, 2021 | 06:58 PM
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Another one. Should be the same as yours.
Now Don your at it

Last edited by 1509joe; May 25, 2021 at 06:59 PM. Reason: Don Clark
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Old May 25, 2021 | 08:37 PM
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Originally Posted by 1509joe
Another one. Should be the same as yours.
Now Don your at it
Depends if OP's is a MY99 or MY00 Turbo 2000
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Old May 30, 2021 | 01:05 PM
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Thanks for all the help and diagrams, I think I understand where everything is meant to go now.

I have connected it all up as shown last night with the pipes and clamps I already had and I can now start the car but it won't idle, it starts first time then as it drops to 1k RPM is starts to stutter and die, if I rev it or try to raise the RPM it back fires a few times and then dies anyway.

I have ordered a bunch of new clips and hoses as well as a MAF (just in case). Once they arrive and I put it all on hopefully it will be okay.

one thing I did notice last night that I didn't put in my diagram was the vacuum off the throttle body that seems to have a vacuum hose attached to nowhere sitting on it. 🤨

Thank you all again. 🙂

Last edited by ByPrOdUcT; May 30, 2021 at 01:07 PM.
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Old Jun 1, 2021 | 11:20 AM
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The only pipes attached to the throttle body, AFAIK, apart from the obvious inlet air pipe are the two cooling water connections.


Last edited by Don Clark; Jun 1, 2021 at 11:22 AM.
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Old Jun 1, 2021 | 11:32 AM
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On the earlier cars there was a small brass 4mm ish pipe for the purge system. Maybe someone has fitted an earlier throttle body. I forget when it changed but the throttle cable is on the opposite side on the earlier cars which may help. Pipe I on above diagram.

Last edited by 1509joe; Jun 1, 2021 at 11:52 AM.
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Old Jun 1, 2021 | 01:45 PM
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Originally Posted by 1509joe
On the earlier cars there was a small brass 4mm ish pipe for the purge system. Maybe someone has fitted an earlier throttle body. I forget when it changed but the throttle cable is on the opposite side on the earlier cars which may help. Pipe I on above diagram.

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Old Jun 1, 2021 | 02:00 PM
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Old Jun 1, 2021 | 02:16 PM
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Thats the wee pipe sitting right on top in the centre ot the throttle body. With a right angle bend on it.
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Old Jun 1, 2021 | 05:10 PM
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Originally Posted by 1509joe
Thats the wee pipe sitting right on top in the centre ot the throttle body. With a right angle bend on it.
MY97/98



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