Rxmfn7

iTrader: (4)

OK, I dont know if anyone remembers, but I posted a few threads about a week ago about my car not idling. Anywhoo, my car still wont idle, but I went and started it the other day and if I rev above 2000rpm, there is a high pitch wistling coming from the engine somewhere. And then if you let off the gas it just dies instantly. The new thing is the wistle, I never heard it b4, and its pretty damn loud, so its not like I just couldnt notice it before. So..Im thinking I have a cracked or collased vacuum line somewhere. I had a friend sit in the car and rev while I looked for cracked lines, but could not find one, so im just gonna order all new silicone ones and replace them all. I just wanted anyone elses opinion on what this may be. Do you think im right?? Oh, and if I give it gas to keep it running for like 2 minutes, a buzzer starts beeping..at about 1 second intervals. I've never heard this buzzer before either, any thoughts what this is? Thanks in advance..