The air chamber is made from plastic and receives pressurized air, cooled by the intercooler, and conveys it directly to the cylinder head.The excess pressure sensor Characteristic of working principle 1060G PRESSURE PUMP ELECTRIC CONTROLis mounted on the air chamber and is connected to the injection control unit; at the manifold inlet there is a diffuser for introducing the exhaust gases coming from the EGR valve and directed towards the cylinders.