help me, help me please ENGINE/INTAKE ISSUE

so i recently installed an aftermarket intake system and everything was running fine.i have a 2003 3.4l base by the way. later on in the day, i felt a shudden vibration coming from the engine,so i pull the car over to check, and i see my intake system fell loose from throttle body. so i temporarily tighten it back in place till i got home to re-tighten everything back up (about 1 mile to my house). ever since then, the car wont stop shaking and check engine light stays on. and when i speed up exactly over 30 mph, the check light would blink on and off until my speed drops back under 30mph.

i would really appreciate any help or insight on my situation. but im thinking its a computer problem. i've also tried to reattach the old intake back but still same problem.:crying::crying::crying: also, it only shakes when im idle, but goes away when accelerating.

Welcome to AF, what is the code, what kind of " intake system" do you mean, not much info to work with here.