I am running a 1996 16 valve 1.6. The Mass Air Flow sensor does not require vacuum, or the hose obviously. This sensor is located in the duct work between the Air Filter box and the Intake Manifold. It requires three wires, 12 volt (supply), Signal voltage (between 0 and 5 volts when running), and a ground.
My motor does not have a Manifold Absolute Pressure sensor, it uses a Manifold Differential Pressure sensor. This sensor is located on the firewall on the passenger side (here in the U.S.A.) of the vehicle. It does require a vacuum source (a hose). The hose on mine is tapped into the hose supplying vacuum to the EGR solinoid valve(via a T connector), which is mounted on the rear of the valve cover. There is also a very small gasoline check valve in this hose.
Sincerely,
Nine Pine