HI , cannot answer you about the idling / stalling problem you have, could be many things in my mind; ECU to ignition coil pack check for idle switch at throttle body.
However , your rear wiper, how d'you know the motor is ok if the wiper is not working ?!?!?
I recently bought a Bravo 1.2 80sx 16v and my rear wiper ceased to work too. With ignition swithched on (not with engine running) do you hear the wiper motor relays clicking (need quiet space and good ear)(or someone to listen at boot) If yes like mine was , then its simply the wiper motor spindle has ceased. I firstly gave it some encouragement, with wiper switched on, and got it moving (although slowley) ,then took arm off etc so I can see spindle in its sleeve and apply some good ol' WD40.Been working for 2weks now in all this recent rain !
AJ., June 2007