Function of intake manifold pressure sensor

Check the intake pressure in the intake pipe behind the throttle. The main function of the intake manifold pressure sensor is to check the intake pressure in the exhaust pipe after the throttle valve, calculate the intake air quantity, and determine the basic fuel injection quantity and the basic ignition advance angle. The greater the intake pressure, the more intake air, the more fuel injection and the smaller the ignition advance angle. The intake manifold absolute pressure sensor can calculate the air mass. The pressure sensor can directly monitor the absolute pressure behind the throttle valve in order to accurately calculate the mass entering the cylinder. The intake manifold absolute pressure sensor can make up for the air leakage behind the throttle. If there is air leakage behind the throttle, this phenomenon is not considered.