Just wish to check with you whether is it normal that my idling drop when i turn on my headlights and all other electrical component like the heater for the rear mirror, and sometimes when wen i wind up the windows can feel the car's idling dropping and feel the car got slight jerkiness due to the rpm dropping too low. And when start to move from standstill like will jerk a lil first or start moving from a standstill is very slow. Any of you guys got a solution to the prob i mentioned or encountered yourself before? Thx