Intrigue
 

Hello all , i have recently purchased a 98 323F Intrigue 1.5 16v and i am noticing that every time i stop at a junction my revs drop down to an almost stall (but dont) then rise back again , this being without the lights , stereo etc being on , has anyone else had this problem and have fixed it so they can advise me on what to do ?
Oh the car also sounds like the wheels are loose when i go over any bumps , any ideas ?
Hope i have not got myself a shed as i have always liked the shape of mazdas and people tell me they are fantastic ,
please help , thank you .