D21 Hardbody 2WD L4-2389cc 2.4L SOHC MFI (KA24E) (1990)
Fuel Return Line: Description and Operation
Fuel Tank Assembly
The fuel delivery system consists of several components:
^ Fuel delivery lines and hoses.
Designed to allow fuel to travel from the fuel pump outlet to the fuel filter and on to the fuel rail and injectors.
^ Fuel return lines and hoses
Designed to allow fuel to flow from the fuel pressure regulator to the return fitting on the fuel pump and into the tank.
^ Fuel evaporation tube
Designed to allow fuel vapor to flow from the fuel tank through the check valve and into the carbon canister.
The fuel lines are made of stainless steel and the hoses are made of high pressure type (to withstand fuel pressures needed for fuel injection
systems).
The hose clamps are a high pressure stainless steel type and should not be replaced with standard hose clamps.