my 96 sp just started idling weird today i cleaned my IAC saturday and replaced cap rotor wires and plugs a while ago, could it be because i recharged my intake filter? when im at a red let it kind of bobs back and forth not side to side but if its in park it calms down and when im driving everything is fine idk where to start....

 

go through all your vacuum lines make sure theres no leaks. theres an evap diagram at the top of the firewall so you know where each hose goes. if it didnt rough idle before you messed with the intake components and does now i would put money that some vacuum line is loose. two affective ways to test. 1. listen for a loud sucking noise or 2. find someone who smokes and have them blow smoke into the airbox and see if the smoke leaks somewhere else