I have a problem my car revs on idle, i don't know what it is anymore

it could be a clogged cat converter I'm not sure

maybe a vac line loose, but I'm at wits end!

it has 200,000km and it has check engine light on and it was the code for a maf, so i replaced that and the check engine light is still on , i didn't get the computer to check if its the same code.

if you have an idea post!



its a 2000 grand prix gt
i uploaded the video on youtube

YouTube - 3800 v6 3.8L ldle problem! 2000 grand prix.

YouTube - Reving engine 3800 series 2, 2000 grand prix gt

Thank you in advance!