Fuel Injector: Description and Operation

NOTE: The opening pressure of the fuel injectors has been raised from CIS-E to allow a higher residual pressure.

- specification: 4.3 - 4.6 bar (62 - 67 psi)





NOTE: The CIS-E III fuel injectors use a finer thread for the fuel line connection than the previous CIS-E injectors. To test these injectors using the US 8034 pressure tester, special adaptor US 8034/7 is required.





The fuel injector lines are also exposed to a higher pressure. The lines are steel armored. These features, combined with the higher fuel system pressures, help to reduce the possibility of fuel percolation in the injector lines at high temperatures.