when my car is stopped on red light with a normal temperature,at normal rpm,idling is shaking or u can say i feels some vibration on handle.this problem occurs on petrol as well cng.
i change its rpm motor,engine wiring,plugs,coil n coils wire,wash its throttle body,set its tappet, change its pcv valve,and one sensor that i don't know the name of that sensor...i think its located on throttle body for (butterfly motion).but doing such things,problem remain same for feeling vibration on handle,i want smooth idling,without vibration.
plzzz tell me the exact solution or points that i can do for this problem.
thanks...