Hello. Need help here.

I was wondering why my RPM Meter goes up and down.

When got back from my traveling, my car was not the same anymore. As if my car is telling me something.

Plus, my engine is not running smoothly. As if it's about to die. Sometimes it suddenly died.

I need help. Is its because of the carburetor tuning or the fuel pump or something?

I'm driving a Mitsubishi Colt 1.2 (4G11 engine)

 

check your spark plugs,
check your battery,
go to autozone or someplace like that and get a free diagnostic on it..

 

Thank you very much for replying.

I'll check the parts.

I thank you again.