ISC, Boost leak, Plugs?

[Sparky2211]

My car stumbles/dies when stopping. Is there a fix?

This is a symptom of a broken speed switch, which is a part of the speedometer in the instrument cluster assembly. With the switch inactive, the ECU does not know the car is moving and doesn't keep the idle high enough to operate the power brakes. For details on why this switch is important, read this post, where Todd Day (the 'talon mgr') explains it, and this one where he explains how to diagnose it. Search the archives for more information.

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this is taken from Vfaq. Every symptom for it matchs the one that i have. what do you guys think? and how hard is iit replace?