turn off the car, take all the plastic tubings out and get to ur throttle body. clean wutever you can. then turn on the car and spray some throttle body spray on ur cloth or wutever you cleaning the throttle with. pull the throttle cable so that thing opens, and clean the rest of the inside of the throttle body. when ur done, turn off the car and start packing back up.
thats how i do it, and i dont understand why u'd think the car will stall when ur spraying.