I need some feedback for what could cause a code 33 for MAF and MAP sensors. Is this the reason because I have checked it over and over again. Car runs very rough and kills when shifted into Drive, also when heater/defrost is turned on. Checked almost everything but I think there is a problem with the cars vacuum. If I can get any information on what to do here I would appreciate it.

Welcome to AF, 3.1 engine? If you disconnect the maf see what happens. Check this link for info, http://www.autozone.com/addVehicleId,1911903/initialAction,repairGuide/shopping/repairGuide.htm?pageId=0900c15280067e26

3.1. Also catalytic converter turned beat red, I believe its called a meltdown. Why would the idle change and the car run rough if the power brake booster is attached. Everything runs the same with the MAF disconnected. I wonder why after disconnecting the MAP sensor the Check engine comes on. I AM DESPERATE FOR ANSWERS!