rough idle....

[dindy]

hi guys its me again. got a 2001 , 1.0 automatic vitz. i got little bad issue with idling. on start up it runs good. on drive reverse and other still no problems... but as i come to a stop sign and i press my brakr to hold the car, it begans to shake roughly. then i shift in neutral and the rough idle smooths out, but not that smooth....still i get rough idle even on neutral with the ac on. no check engine light. due 6 about 1 year ago, i had idle control valve and air flow meter trouble...chnged them to original part, engine light went off, but still rough idle....mechanics keep telling me it is normal, but for me not. my car never did that before. it driving me crazy..so anyone had similar trouble? jus t to tell you

new idle control valve
new air flow meter
new air filter
new plugs
oil changed, trans oil changed, water coolant changed.

any help pls, before a change my car now. thanks :)