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Thread: Boost controller help. Stuck on freeway.

  1. #21
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    Had to work since Wed night so got a work van to run around in.
    So , I Still haven't had a chance to go get the car and sort it out.
    2005 TD42TI

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  3. #22
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    So I found the culprit. Well, I think I did as im in no position to fix / test now.
    Small boost hose that tees off between the intercooler and boost gauge, goes along the top of the motor and to the pump. On top of the motor it goes into a bit of small metal piping before it exists as rubber hose again before going to the pump.
    Where it meets this bit of piping the hose was dry, crumbled and completely blocked inside.
    It looks and feels burnt but it isnt and it doesnt smell burnt. There is nothing in that vicinity that would get hot enough to do this to a hose. Very strange.
    Mat @nissannewby thought this from the start. Pump was not getting boost therefore , it was not compensating the fuel, hence no power...

    The other was the boost controller, which was my initial prediction. I split it open and the spring was in 2 or 3 pieces, one small bit of wire was somewhat edged at the bottom where the ball is. I got another one, but need to source some hose now and will entirely bypass that tiny pipe at the top will go straight from tee to the pump.

    Attached Images Attached Images

  4. The Following 6 Users Say Thank You to Hodge For This Useful Post:

    Bidja (27th September 2019), Cuppa (27th September 2019), MB (27th September 2019), MudRunnerTD (27th September 2019), Rossco (27th September 2019), Touses (27th September 2019)

  5. #23
    Patrol Guru Bidja's Avatar
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    Maybe metal pipe acting as heat sink and heat transferred into rubber hose @ connection.

    Interested in learning here _ the boost controller (vented) in your set up @Hodge , does it provide a boost bleed to atmosphere so that actuator sees a lesser pressure and wastegate remains closed longer so the turbine spools up low down to for improved boost early?
    Last edited by Bidja; 27th September 2019 at 02:55 PM.
    2008 GU WAG ST Manual CRD - To do the job

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    Hodge (27th September 2019)

  7. #24
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    [QUOTE=Bidja;791595]Maybe metal pipe acting as heat sink and heat transferred into rubber hose @ connection.

    Interested in learning here _ the boost controller (vented) in your set up @Hodge , does it provide a boost bleed to atmosphere so that actuator sees a lesser pressure and wastegate remains closed longer so the turbine spools up low down to for improved boost early?[/QUOTE @Bidja
    I think it's a simple boost limiter. Spring inside compresses at set point and lets excess boost out , so as to not push the actuator any further.

    The earlier linked versions , are a inline setup I believe . No tee piece. Hose put of pressure side of turbo, through the controller and out onto the actuator.


    As for the hose. I really don't know. More so how the hose and the controller gave up in one go.
    Prick of a place too. Had to remove the intercooler to get to it. Now to find some quality hose.

    2005 TD42TI

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    Bidja (27th September 2019), Cuppa (27th September 2019), MB (27th September 2019)

  9. #25
    Moderator MudRunnerTD's Avatar
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    Any auto shop will sell silicon hose mate.
    Its a Nissan! =====> Its a Keeper!! ....... Got a TD42 in it BONUS!! ....... I'm a lucky bugger! I've got 2 of em!
    Check out my Toy --> MudRunnerTD's GQ From the Ground Up

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    Wish it was Nissan though, Toyotas just can't keep up with the Pootrol pace.
    The only good thing about an 80 series is..... the front end?? Wrong!!, the Engine?? Wrong!! the Full Time 4WD system?? Wrong!! Its the NissanPatrol.com.au stubby holder fitted over the transfer lever.
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    Hodge (27th September 2019)

  11. #26
    Patrol Guru Bidja's Avatar
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    @Hodge good pic thanks.

    Yeah the inline controller used primarily to remove initial boost spike have read and to provide more linear boost/spool(low down).

    Would replace all boost line hose while at it (pretty cheap).
    2008 GU WAG ST Manual CRD - To do the job

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    Hodge (27th September 2019)

  13. #27
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    Awesome explanatory picture thanks Hodgey mate, learning every nuffy day me here thanks to your unfortunate expense :-(
    As the top blokes above and out there no doubt mentioned too, a positive time to strip ripper TD42 hoses off for another faithful 500,000km we all hope and have seen done too





    Sent from my iPhone using Tapatalk

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    Hodge (28th September 2019)

  15. #28
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    Quote Originally Posted by MB View Post
    Awesome explanatory picture thanks Hodgey mate, learning every nuffy day me here thanks to your unfortunate expense :-(
    As the top blokes above and out there no doubt mentioned too, a positive time to strip ripper TD42 hoses off for another faithful 500,000km we all hope and have seen done too





    Sent from my iPhone using Tapatalk
    Already onto it good Marko! Will re-hose the lot after this stint.

    Many thanks again to fine gentlemen's helping us out.
    Fair dinkum legends as one would say!
    2005 TD42TI

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    MB (28th September 2019)

  17. #29
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    Temporary fix, to get the car home. Ran cheapo bit of hose from Supercheap. All good.
    Ran the car without the boost controller as per @MudRunnerTD & @nissannewby s suggestion and car ran fine with 11-12PSI (factory specs).

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    Bidja (29th September 2019), MB (28th September 2019), MudRunnerTD (28th September 2019), Rossco (28th September 2019)

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