it says that my rpm speed is on something called the "VECI" label and well idk wtf it is so anyone who can lmk either where my rpm should be or know what i am talking about. problem i am having is that when stopped at a light, my rpms even without ac on dip down below 750 and it makes the whole car vibrate and its just shitty.... idk if its supposed to be that low, but anyway help me out here. thanks