Okay guys so here's some back story, when I bought my wrx I was told this mysterious switch was disconnected. So temptation got to me and I tried it, went to clutch in a boom it jumped to 7000 rpm on its own, if this is anti lag I didn't think it functioned in such a way I could be wrong

using the Perth-WRX mobile app

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Sounds like launch control to me.

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JDM version 3 STi RA

Without any throttle input though?

I could understand if the switch engaged / disengaged a secondary rev limiter while stationary, but for it to rev on its own seems daft.

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MY01 JDM EVO VII - 230KW / 430NM @ 1.6BAR

Agreed, seems odd.

OP, do the revs hold at 7k with clutch engaged or spike then fall?

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JDM version 3 STi RA

Neither the antilag or LC works at all like that on my car. What ecu out of curiosity?

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Air is for pussies.

I'll be driving and when I clutch in it will rev to 7k and yeah just hold there, I wouldn't want to try it from launch as 7k takeoff could break the transmission

From what I've been told its a stock ecu

I am struggling to think of a situation where having a WOT switch would be helpful.

Maybe it was tuned to do AL or LC in the past and the switch is now faulty or has been deactivated (unsuccessfully)?

Is there anyway you can contact the owner or (even better) contact the workshop whom worked on and tuned the car. They should have some idea of the function.

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MY01 JDM EVO VII - 230KW / 430NM @ 1.6BAR

lol i would be getting rid of that. Doesnt sound nice.

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Going to have to agree with you on that, I've never heard of a switch that behaves like this one so it's strange, would have been cool if it was LC or something but ah well thanks for the help everyone might just stay away from it