Fixed small coolant leak now can't hit load or boost targets

Discussion in 'Mazdaspeed 3 Troubleshooting' started by OverBoosted, Apr 15, 2017.

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  1. OverBoosted

    OverBoosted Greenie Member

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    the plugs might have 10k miles on them. I will pull them and take a look at them.
    --- Double Post Merged, Jun 26, 2017 ---
    I Installed them in August 2016. I don't put a lot of miles on my car though.
     
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  2. ConeKiller

    ConeKiller Motorhead Greenie Member

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    another thought- is there a rag or something stuck in the intercooler from when you fixed the coolant leak? (not sure if you're TMIC).
     
  3. OverBoosted

    OverBoosted Greenie Member

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    I have the Cobb FMIC and no rags etc in the piping. I am going to test the EBCS once again and do another boost leak test tonight. I have already done these but I am at a complete loss for what could be causing this.
     
  4. btstarcher

    btstarcher Greenie Member

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    I'd have your tuner take a look at your logs. He might have some insight.

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    btstarcher, via a mobile device, Jun 27, 2017
    #24
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  5. OverBoosted

    OverBoosted Greenie Member

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    Tested ebcs and when pressure to the ebcs the wg opened. Powered the solinoid and it shut quickly.

    Sent from my Pixel XL using Tapatalk
    --- Double Post Merged, Jun 27, 2017 ---
    Here are a couple videos of the WG and EBCS testing.

    <iframe width="560" height="315" src="https://www.youtube.com/embed/l6KmnsLvDTA" frameborder="0" allowfullscreen></iframe>

    <iframe width="560" height="315" src="https://www.youtube.com/embed/LMZamRSo5MQ" frameborder="0" allowfullscreen></iframe>
     
    OverBoosted, via a mobile device, Jun 27, 2017
    #25
  6. djohns

    djohns Silver Member

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    Strange. Do have an EGR delete? Maybe check the port that gets blocked off on manifold? Also have you visually inspected the couplings to ensure there isn't a very small hole? I've heard stories about bad couplers but they were okay with boost leak tests.
     
    djohns, via an iPhone, Jun 27, 2017
    #26
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  7. OverBoosted

    OverBoosted Greenie Member

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    I do have the EGR delete and the plug is secure. I boost leak tested tonight and found no issues.
    --- Double Post Merged, Jun 27, 2017 ---
    In another troubleshooting idea. I unplugged the WG lines all together and did a log (I of course started out slow before actually doing a log) here are the results.

    19 max pressure and 1.7 load etc. Same as before I replaced my CHRA
     

    Attached Files:

  8. djohns

    djohns Silver Member

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    Can you post pictures of where the coolant leak was? Also I would recommend visually inspecting the couplings instead of just trusting a boost leak test. @monkey.bones.007; had a rather large cut in a boost tube but every thing appeared fine during a boost leak test.
     
    djohns, via an iPhone, Jun 27, 2017
    #28
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  9. OverBoosted

    OverBoosted Greenie Member

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    Coolant leak was right above the tip to turbo coupler. I have a T in the coolant line coming from the egr. The lines were just old and had gotten brittle. I replaced the one that feeds the turbo to the T.

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    OverBoosted, via a mobile device, Jun 27, 2017
    #29
  10. djohns

    djohns Silver Member

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    Also have you tried swapping the map sensor with a known working one? When my corksport failed boost was bouncing all over the place but the car felt normal.
     
    djohns, via an iPhone, Jun 27, 2017
    #30
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  11. OverBoosted

    OverBoosted Greenie Member

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    Here is a picture of the lines I replaced when I originally worked on the car. [​IMG]

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    OverBoosted, via a mobile device, Jun 27, 2017
    #31
  12. ConeKiller

    ConeKiller Motorhead Greenie Member

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    How do those plugs look?
     
    ConeKiller, via a Nexus device, Jun 27, 2017
    #32
  13. OverBoosted

    OverBoosted Greenie Member

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    I have not swapped map sensors

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    OverBoosted, via a mobile device, Jun 27, 2017
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  14. OverBoosted

    OverBoosted Greenie Member

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    Ran out of light tonight. I'll pull the plugs tomorrow and have a look

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    OverBoosted, via a mobile device, Jun 27, 2017
    #34
  15. OverBoosted

    OverBoosted Greenie Member

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    Plugs looked fine and boost leak tested to 30psi. Nothing found.

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    OverBoosted, via a mobile device, Jul 1, 2017
    #35
  16. OverBoosted

    OverBoosted Greenie Member

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    Inspected couplers as well and they showed no damage.

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    OverBoosted, via a mobile device, Jul 1, 2017
    #36
  17. btstarcher

    btstarcher Greenie Member

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    What did your tuner say?

    Sent from my SM-G955U using Tapatalk
     
    btstarcher, via a mobile device, Jul 1, 2017
    #37
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  18. OverBoosted

    OverBoosted Greenie Member

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    He is at a loss as well.

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    OverBoosted, via a mobile device, Jul 1, 2017
    #38
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  19. djohns

    djohns Silver Member

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    Swap map sensor yet?
     
    djohns, via an iPhone, Jul 2, 2017
    #39
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  20. OverBoosted

    OverBoosted Greenie Member

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    Have not swapped yet. Might be able to do that next weekend.

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    OverBoosted, via a mobile device, Jul 2, 2017
    #40
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