12 Wrx Stage 2 lost power
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This is a discussion on 12 Wrx Stage 2 lost power within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I have a 12 WRX with Invidia catted downpipe, cat back, aem cai, GFB blow off valve and Cobb Accessport ...

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    12 Wrx Stage 2 lost power

    I have a 12 WRX with Invidia catted downpipe, cat back, aem cai, GFB blow off valve and Cobb Accessport Stage 2 lwg map. It's been almost a week since installing the DP and catback and I'm noticing a notable loss of power. When I get on the gas around 3k RPM, the boost just sounds loud and like its spooling a lot louder than normal. During that time I feel like a have no power. It doesn't put you back in the seat like it used to. On the Accessport I've been watching the boost and it still boosts around target boost and eventually see it go to 24, 23 psi. I've also gotten wastegate solenoid CEL once before the exhaust install and once since the install. Car seems fine around normal driving below 3k rpm but anything higher and it definatly doesnt feel right. Anyone have any ideas? I've been looking and seeing info about IC to throttle body clamps could be loose or blown and other things about waste gate up pipe might could be bad. Another noticeable issue is the car seems to backfire a whole lot more when shifting or getting of the gas. If anyone has any good info please your advice is needed. Don't really feel like putting everything back to stock and taking to dealer but I'll do so if that's what it takes.

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    Registered User Convictus's Avatar
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    I have the same exact problem with a comparable setup. Remove the hose from the tmic to the tb and remove both the gaskets on the hose and reinstall the same hose. Should take 30 minutes.

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    You just took out he gaskets and replaced with new ones or completely took them out?

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    Registered User Convictus's Avatar
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    I just took them off the hose and reused the hose without them. They use a glue that seems to lose adhesion with heat for some reason. It was an instant fix on my car 2012 stage 2 wrx.

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    That's good to hear. Hopefully it's a nice easy fix like that

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    Registered User maus's Avatar
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    You blew off the hose going from the IC to the throttlebody
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    Registered User Convictus's Avatar
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    Mine was still connected snugly on both of the end fittings but the hose inside the fittings was just sitting in the there and not sealed at all. I could build some boost but nothing really usable.

    I have a replacement hose on order from AVO because i don't like the stock one; it sits without the fittings but it does function fine.
    Last edited by Convictus; 05-20-2013 at 10:11 AM.

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    Pro Manscaper Mikie13's Avatar
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    Quote Originally Posted by maus View Post
    You blew off the hose going from the IC to the throttlebody
    Quite a frequent occurrence actually.
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    How would I be able to tell this? I hole or so? By looking at the hose thoroughly, it looks fine

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    Registered User maus's Avatar
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    Quote Originally Posted by rxz88m View Post
    How would I be able to tell this? I hole or so? By looking at the hose thoroughly, it looks fine
    It popped off the lip of the TB. you cant' tell because the TB sits underneath the IM. Just take the IC off, reseat the hose on, tighten the clamp, put ic back on. done.
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    Thanks for the help

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    All the shop had told me was to get a tune specific for my car. He didn't find anything wrong with the hoses. Said there were no leaks just that I needed to get a better tune than the stage 2 from Cobb. Does this sound right to anyone?

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    Registered User maus's Avatar
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    Wait your car is boosting to 24 PSI?
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    Sammich Makin' Pwincess wrxtreme06's Avatar
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    Stage stage II map isn't made to be used with an aftermarket BOV.

    Maybe try putting the OEM valve back

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