It takes long time to start on cold, rough on idle and sometimes it would die when shifting in gear to drive (R or D). Is it a vacume problem or something else. Need help

 

I have exactly the same problem. Hope someone chimes in

 

These kinds of problems on a car one has not seen are hard to diagnose. Have to start with a basic "tune-up check": plugs, wires, rotor, cap, then on to sensors... Not saying to replace them, but have to know their condition and service life. Once those are eliminated then go on to more complicated things.

 

I agree, big tune up, then look at the usual suspects, vacuum leak, idle valve etc.

Regards, Andrew.