My Toyota Vitz 2007 idles very rough. Sometimes it stalls if I suddenly stop after few miles drive.
I took the vehicle to a mechanic and he cleaned up the fuel pump. He used compressed air to clean up. When he tried to clean the top part of the pump (I don't know the exact name) it blew up. There was some sort of a black colored powder inside it.
Mechanic told that the purpose of it is to remove any fuel vapor from the outgoing air when filling the tank and that part is not vital. He just re assembled the pump and installed in the car again. Now I am driving with the damaged fuel pump.
The rough idling problem hasn't got resolved either.
So, is it OK to drive the car with this damaged fuel pump?