Reving engine

Discussion in 'Modifications And Maintenance' started by blake, Jan 21, 2008.

  1. blake
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    blake Well-Known Member

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    I have been having an issue with my 02 WRX this last weekend. Whenever I am accelerating, every time I push in the clutch to change gears, the engine revs up to a 1000 RPMs, holds it for a split second and either goes to idle (with the clutch still pushed in) or holds the higher rev for a split second more if I disengage the clutch after shifting into the next gear.

    I have no idea what is causing the issue, but it is extremely infuriating and I am hoping it is not causing undo damage to the vehicle. Any info would be greatly helpful. Thanks.
     
    blake, Jan 21, 2008
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  2. hella_sti
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    hella_sti Well-Known Member

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    idle air control valve gasket
     
    hella_sti, Jan 21, 2008
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  3. AWDimprezaL
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    AWDimprezaL has more posts than you

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    you mean idle air controll gasket needs to be changed, when you clean your idle air controll valve because its dirty :) :wavey:
     
    AWDimprezaL, Jan 21, 2008
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  4. hella_sti
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    hella_sti Well-Known Member

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    either or, I think the gasket is cracked and the valve might be a bit dirty.:yumyum:
     
    hella_sti, Jan 21, 2008
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  5. AWDimprezaL
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    AWDimprezaL has more posts than you

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    :wiggle:
     
    AWDimprezaL, Jan 21, 2008
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  6. Speedemon
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    Speedemon Well-Known Member

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    :wavey: good job guys
     
    Speedemon, Jan 21, 2008
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  7. piddster
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    piddster Lone Wolf

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    What is the best way to clean an IAC valve, btw. I've been putting it off for quite some time. I think thats why my idle is crap. 200k miles and no cleaning on this bad boy.
     
    piddster, Jan 21, 2008
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  8. Scuba Steve
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    Scuba Steve Well-Known Member

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    We used TB cleaner on Silver03's 2.2l with the same issue. replaced the gasket too. still does it though, but not as bad.
     
    Scuba Steve, Jan 21, 2008
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  9. FuJi K
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    FuJi K Well-Known Member

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    isn't the Subaru WRX known for this??? The transition between open/close loop?? HOW MANY milli-SECONDS before switch over??
     
    FuJi K, Jan 21, 2008
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  10. piddster
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    piddster Lone Wolf

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    TB cleaner? As in throttle body cleaner? I was thinking I'd spray the hell out if it with carb cleaner. I do get a fair amount of exhaust reversion with these cams.
     
    piddster, Jan 21, 2008
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  11. AWDimprezaL
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    AWDimprezaL has more posts than you

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    for the older you dont have to take the iac off, just spray down that hose, i use TB cleaner, A **** TON OF IT while running (you gotta keep it running with your hand)
     
    AWDimprezaL, Jan 22, 2008
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  12. blake
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    blake Well-Known Member

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    Hey thanks for the info guys. I will have to give it a try when I get back from work.
     
    blake, Jan 24, 2008
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  13. tux121
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    tux121 Well-Known Member

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    I thought you couldn't do this to pressurized manifolds?
     
    tux121, Jan 24, 2008
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  14. AWDimprezaL
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    AWDimprezaL has more posts than you

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    of course you can
     
    AWDimprezaL, Jan 24, 2008
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  15. Justin
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    Justin Well-Known Member

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    yes, i've seen many threads about it on nasioc and i dont ever remember it being the iac gasket
     
    Justin, Jan 24, 2008
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  16. AWDimprezaL
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    AWDimprezaL has more posts than you

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    clean your iac and buy a new gasket (we have them in stock)
     
    AWDimprezaL, Jan 24, 2008
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  17. blake
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    blake Well-Known Member

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    Well I finally cleaned my iac today. It was much much easier than I expected. I used a impact screwdriver (5 bucks at Menards), a ton of wd40, and put a new gasket and screws on. So far, it seems to work alright. No leaks that I could tell.
     
    blake, Feb 21, 2008
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