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Discussion Starter #1
After a few days at Stage 2 I notice my idle has dropped to around 750 rpm.......sounds cool but is it normal? Sounds like it has a big cam in it now......or is this the famous "boxer rumble"?
 

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I think my car (Cobb stage 2) idles at about 750. I can't remember if it was different before my reflash. It's never been a problem...:confused:
 

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My car has idled at 750 rpm from day one. That is the factory number for the idle, my AP reflash did not affect the idle speed in my car. I know when you have the AC on the idle is higher, closer to 1000 RPM.

-the_bear
 

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Discussion Starter #6
Ok....what about the smoothness of the idle???
Did you see it get "lumpy" after Stage 2?
 

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Well, I perceived it's innate boxer sound much more after going to stage 2, because I was now running a catless downpipe and catback. I wouldn't call my idle lumpy, though I suppose some people who are used to inline 4's might think it is...
 

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I'm stock until the AP gets here this week and right now I idle at right about 750.

Cheers

Staton
 

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When I'm not on the gas my car feels identical to stock with the Cobb stage 2. Did you install an exhaust at the same time? Maybe now you are hearing it more.
 

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I wouldnt be worried if it idles at 500. Some days my car will idle at 500 and some days its just a touch over 500 which i'm going to call somewhere around the 700 range.
 

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Everytime I start my car up, it idles at around 750. If my car is warmed up, it idles at around 450-500.

-BobbyD
 

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when i first turn on the motor 1500 rpm.....after it warms up or i hit the gas 750 rpms
 

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Discussion Starter #15
problem solved

DOH!
Found a vacuum line disconnected.........end of CEL and rough idle!
Thanks for the help.
 

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WRX IDLE

a 500 rpm idle is normal when the engine is warm. You will see higher when cool because the enrichener, controlled by the ECU,
creates a faster idle.
Stg. two has made no differrence to this.
 

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