Hi, I have a 2001 v6 mustang with 134,500 miles on it. My car has recently started revving high when I cold start it. When the oil is at normal operating temp it revvs high as well. The car accelerates at a red light, and I have to really mash the brakes to keep it haulted. I cleaned my throttle body, and I sprayed wd-40 in my IAC; it still revvs high. I also checked for air leaks. I don't think there are any because I don't hear any high pitched whistling. Any idea?