REV/BOOST Running rough
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This is a discussion on REV/BOOST Running rough within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; 2013 hatch WRX. Mods: Accessport stage 1, Cobb sf intake, SPT catback exhaust and I have always ran 93. Problem: ...

  1. #1
    Registered User hatchaintwack's Avatar
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    REV/BOOST Running rough

    2013 hatch WRX.

    Mods: Accessport stage 1, Cobb sf intake, SPT catback exhaust and I have always ran 93.

    Problem: It does not happen all the time, but for the past few days whenever i reach 3.5 rpm instead of gathering boost, all i get is a rev. i still gain speed and minimal boost but it is definitely not normal. Help Please!

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  3. #2
    and the Funky Bunch Calvinball's Avatar
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    What do you mean "all I get is a rev?" When I read that, I think that your engine is revving and you aren't moving the way you should be, a la a clutch slipping.
    - Will
    First Mods: What to do and what not to do
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  4. #3
    Registered User hatchaintwack's Avatar
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    Still gains speed, just revs louder than usual. In a sense it feels halted. As if my engine isnt getting enough air. It will happen when I'm shifting yes but when I'm in gear as well. Basically whenever I'm over 3.5 rpm.

  5. #4
    Registered User thegamer1587's Avatar
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    Boost leak?

  6. #5
    Registered User hatchaintwack's Avatar
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    Boost leak is a possibility, although ill drive it and my boost will be perfectly fine, hop in and drive three hours later and the same problem arises. Could this be a tune problem/MAF issue.

  7. #6
    Registered User anpato's Avatar
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    I would look for any boost leaks, T/b to intercooler especially, if that doesnt fix it try some maf cleaner.
    2013 SWP WRX Sedan
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  8. #7
    Registered User maus's Avatar
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    Do you hear a lot of gushing air? Sounds like you blew off the hose going from the IC to the throttlebody. Very common.
    2012 DGM 5 DOOR WRX
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  9. #8
    Luke Skywalker Mikie13's Avatar
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    Quote Originally Posted by maus View Post
    Do you hear a lot of gushing air? Sounds like you blew off the hose going from the IC to the throttlebody. Very common.
    ^this

    Or it's the clutch.
    The Hawk-Eye Alliance #90|The Blobeye Syndicate #0|The Stink-Eye Mob #0|N.E.R.D. Founding Member & #3
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  10. #9
    Registered User hatchaintwack's Avatar
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    thank you everyone for the feedback. i cleaned my MAF, checked for loose connections. No luck yet, i will be taking my car to my local tuner on saturday. hopefully they can figure it out :/

  11. #10
    Registered User maus's Avatar
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    The loose connection is under the Intake manifold, you cant see it. You need to take your intercooler off. And put the hose back on the TB and then tighten the hoseclamp.
    2012 DGM 5 DOOR WRX
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  12. #11
    Registered User hatchaintwack's Avatar
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    Quote Originally Posted by maus View Post
    The loose connection is under the Intake manifold, you cant see it. You need to take your intercooler off. And put the hose back on the TB and then tighten the hoseclamp.
    Off goes the intercooler tomorrow, will see how this goes

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