Mitsubishi Repair: 92 Galant, 2.0, MPI, Automatic, 4g63, old battery

Question
Dear Mr.Falcony..Good Day to you..i need your professional help..the idling of the car is fluctuating and you can feel the heavy shaking of the engine..and when i put the car on drive in a couple of minutes the engine dies..especially last night i was caught in heavy traffic so i had to do a lot of breaking and stopping..whenever its on park or drive the engine dies..i have change the old battery with a new one..the motor number of my car is 4g63-nb8863 Philippines..

Answer
Frank,
There are a number of potential causes of these problem.  Bad spark plugs, worn alternator, dirty air or fuel filter, or a misaligned timing belt are all but a few of the things can make your idle go slow and engine to die.  My recommendation is to have your car inspected by a mechanic to help isolate the actual cause from that list of common causes and provide the proper service.
Good luck!