If your car is mass air, there should be no vaccum line going to the MAP sensor. It should be open. ONly speed density cars have a vac line on it.
So... if you have a vac line going to that sensor, the line needs to be removed and plugged. The vaccum port on the sensor itself should remain open (not plugged).
So... if you have a vac line going to that sensor, the line needs to be removed and plugged. The vaccum port on the sensor itself should remain open (not plugged).