Take a look al this answer. You will need to add an extra to your intent to indicate which PreferenceScreen should be opened, then use the method described there to 'simulate' a click in the preference.
Actually, if your are using the new API with PreferenceFragment, PreferenceHeader and whatnot, the class PreferenceActivity already does all that for you. Just put the name of the PreferenceFragment you want opened in the EXTRA_SHOW_FRAGMENT extra.