PLEASE help!!! when i turn my car on on in the morning my car normally starts normal then idels fine then suddenly drops its revs to about 100 RPM then just dies! i start it back up and it does it again, i usally just give it a few revs then the RPM goes to 100 the revs back up to 1000RPM and it goes up and down till its warm then idels fine!!!

WHATS WRONG?