New k04 problems

Discussion in 'Mazdaspeed 3 Troubleshooting' started by DustinDriver, Apr 10, 2024.

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  1. DustinDriver

    DustinDriver Greenie Member

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    Ok I've been chasing this for 2 weeks. I installed a new k04, and had to adjust tye wastegate because I was only getting g 12psi of boost. I've adjusted it to 20.65 psi and now I'm getting alot of compressor surge. I can't find a leak of any sort. I'm going to pressure test it this weekend . Any1 with suggestions or similar situation?

    2008 msp3 stock turbo. With turbo inlet pipe. Front mount, hpfp internals tuned by freektune on e85
     
    Last edited by a moderator: Apr 10, 2024
    DustinDriver, via a mobile device, Apr 10, 2024
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  2. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    Sounds like the wastegate is too tight now
     
    Easter Bunny, via a mobile device, Apr 10, 2024
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  3. DustinDriver

    DustinDriver Greenie Member

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    So how could I get the 20 psi then?
     
    DustinDriver, via a mobile device, Apr 10, 2024
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  4. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    I don't understand what you mean by 20 psi. Are you trying to I crease max boost pressure? You need a tune for that
     
    Easter Bunny, via a mobile device, Apr 10, 2024
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  5. DustinDriver

    DustinDriver Greenie Member

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    So I replaced a k04 with a k04 and I'm going to have to get it tuned again

    Yes. When I out this new turbo/ wastegate on my car it only made 12psi on my e85 tune. So I adjusted the wasegate to achieve my previous 21ish psi at wot. Now the wastegate is so tight I get compressor surge. So I need to back the wastegate rod back out until my bov is working and have my car retuned?
     
    Last edited by a moderator: Apr 11, 2024
    DustinDriver, via a mobile device, Apr 11, 2024
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  6. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    It wasn't clear if you were trying to match the old or increase if you are trying to match you "shouldn't" need a new tune. Is it a new orm ko4 or is it Chinese rebuilt?

    You might be able to get there by playing with the adjustments on the wastegate but if the turbos are too different you won't be able to perfectly match
     
    Easter Bunny, via a mobile device, Apr 11, 2024
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  7. Awafrican

    Awafrican Moderator Gold Member

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    Did you break the ebcs nipple? A common occurrence when dealing with the OEM boost controller.

    12 psi sounds like spring pressure which is why I ask, would leave me to believe something's up with the ebcs. Or it's piping

    You absolutely need to back off the waste gate tension
     
    Awafrican, via a mobile device, Apr 11, 2024
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  8. DustinDriver

    DustinDriver Greenie Member

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    I did break the old ecbs. I bought a new 1 from oreillys and installed it. I bought the turbo from factory turbocharger.

    If I have the 2 lines on the ecbs backwards would that cause issue?
     
    Last edited by a moderator: Apr 11, 2024
    DustinDriver, via a mobile device, Apr 11, 2024
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  9. Awafrican

    Awafrican Moderator Gold Member

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    It would yes
     
    Awafrican, via a mobile device, Apr 11, 2024
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  10. DustinDriver

    DustinDriver Greenie Member

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    Wastegate closest to the plug?
     
    DustinDriver, via a mobile device, Apr 11, 2024
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  11. DustinDriver

    DustinDriver Greenie Member

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    I adjusted it way back out and swapped those 2 lines on the ebcs. It made 8lbs and sounded very very quiet. My line going to the wastegate is farthest from the connector on the ecbs.
     
    DustinDriver, via a mobile device, Apr 11, 2024
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  12. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    I can't find a correct picture at the moment but you need to make sure the ebcs is hooked up correctly before you go driving around
     
    Easter Bunny, via a mobile device, Apr 11, 2024
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  13. DustinDriver

    DustinDriver Greenie Member

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    I've looked and looked and can't find anything. Everything is about aftermarket 3 port stuff. Lol
     
    DustinDriver, via a mobile device, Apr 11, 2024
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  14. DustinDriver

    DustinDriver Greenie Member

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    I found a couple pictures where someone else was asking for assistance and posted pictures of his set up. Looks like the wastegste us on the nipple closest to the front of the car or plug. That's how mine is now and was before. Now only 15psi amd compressor surge
     
    DustinDriver, via a mobile device, Apr 11, 2024
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  15. DustinDriver

    DustinDriver Greenie Member

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    Maybe I also should note that this is all happening during the shift. Not during the pull. Only when I let off the accelerator to shift.
     
    DustinDriver, via a mobile device, Apr 11, 2024
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  16. Awafrican

    Awafrican Moderator Gold Member

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    You've done a boost leak test right? Have you made sure the bpv/bov you have isn't stuck?
     
    Awafrican, via a mobile device, Apr 11, 2024
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  17. DustinDriver

    DustinDriver Greenie Member

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    I'm gonna make a piece to do leak test this weekend. I've gone over the whole system and can't find a leak by examining couplings or anything . The bov was fine when I removed the old turbo. I can depress it with my finger and it returns back.
     
    DustinDriver, via a mobile device, Apr 11, 2024
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  18. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    It happening during the shift points bpv
     
    Easter Bunny, via a mobile device, Apr 11, 2024
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  19. DustinDriver

    DustinDriver Greenie Member

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    So you think my problem is my hks bov isn't working ?
     
    DustinDriver, via a mobile device, Apr 11, 2024
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  20. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    It would be the next thing I checked
     
    Easter Bunny, via a mobile device, Apr 12, 2024
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