The correct pressure on the injection systems is absolutely necessary for the ideal composition of fuel-air mixture, which is injected in the engine combustion chamber. There are different injection systems, depending on vehicle types, and their pumps require different testing systems. With their application, faulty function of the fuel pumps can be detected without dismounting.
For petrol fuel pump pressure testing. For vehicles with fuel injection systems (except the CIS-Jetronic, Bosch and the GM throttle valve systems). Measuring range 0-7bar (0-100psi)
For Bosch, Denso, Delphi and Siemens Common Rail injection pump pressure testing
Allows high pressure pump testing under working conditions, pressure measurement up to 600bar.