Fuel supply pressure is independent of engine load.
The system consists of the following components:
- fuel supply unit "fuel pump / fuel level sensor / fuel filter" installed in the fuel tank, which includes a pump (1), filter (2) and pressure regulator (3);
- the only pipeline (4) coming from the fuel tank;
- fuel distribution rail (5) without fuel drain line and fuel pressure regulator;
- adsorber (6), connected to the intake manifold via a pipeline and an electromagnetic valve.
Fuel unit (all engines)
The fuel filter on cars with gasoline engines is located in the fuel tank, is an integral part of the "pump/fuel level sensor/filter" unit and cannot be removed separately.
The filter is designed for a long service life.
Checking the fuel supply pressure and fuel pump performance allows you to diagnose the "fuel pump / fuel level sensor / filter" unit.