i've really started to have my share of problems lately, after my first year of ownership was wonderful, but anyway...the car has never idled correctly, and now its acting weirder. when i shift into neutral, clutch pedal up and am coasting to a stop sign or red light the revs still jump around on occasion from 800 to almost 2000 sometimes. once the car comes to a stop it settles back down to 750 and stays there. now it idles at like 1000 and i hear a strange whirring sound when i take off in first, from idle to about 2000 rpm, then shift to second and it happens again. idk what it is, i cleaned the mass air flow sensor, and sprayed the throttle body with carb cleaner too. no idea whats going on???