High-pressure pump (petrol direct injection) The latest generation of high-pressure petrol pumps from Bosch, which can be used for fuel pressures of more than 200 bar. Tappet and solenoid can clearly be seen. The tappet can be moved. description ordernumber 1337 see also: single-vane vacuum pump constant vacuum carburetor air-mass sensor with hot film cylinder head with direct petrol injection (GDI)