(reading this will be like reading a huge book so please just read i need help)ok so i have 3 problems, 2 of them are really off topic and the other is sorta off topic( has to do with the electrical system) but you guys seem to know what your talking about, i have an 2002 svtf and i have a 500 watt amp and a 10 inch sub, when i am running the system hard, i will stop at a light and my car will just drop idle for like 3 or 4 seconds, the batt light comes on and then it will go back to normal, the and is my car is showing a cel, basically saying it is getting to much air, dose anyone know a typical place in the intake system for leaks to happen, ok the last issue is with my tensioner pulley (I think its that pulley, it has been replaced) i had the alternator replaced but when they replaced it the bottom belt cover wasn't put back on so when it rains if i stop at a light and the car drops idle, my serpentine belt will start slipping badly and i have to shut the car off and restart it and go on, but it also makes the same noise sometimes when it drops idle, it also dose it alot when i run the ac, can anyone help me with these problems, i need help!