Two beep alarm again
 

Any insight guys? 496 ho (port) alarms w/ in gear only not idle, however does alarm when started w/ key. Not a drive oil issue & all pm is current (IAC) included, also runs good at all rpm levels all day? Just always sompen!

Thanks!

help again
 

I understand that this has been visited a "million" times, so one more won't push you all over the edge I hope!
496 ho IAC issue question is if I replace it do I still have to hook up to computer to clear code or will it "auto fix"? my tech says bring it in again, wow thats 2 days out of my life & he just replaced them! (port still alarming) Any advice?
Thanks Jimmy