I have 2003 Cadillac CTS and when it starts it idles rough. When I check the connection on the bottom the the throttle body the car died and would not start till I messed with it again. Do I need a new throttle body? Or what should my next step be? I cleaned the throttle body, replaced the MAF sensor, new air filter, & recharged the battery

 

You should have started new thread no resurrect an very old one, anyway try replacing throttle body connector. Are there any trouble codes.