CFI fuel injection system Ford Escort 4

CFI fuel injection system — design description
General view of the CFI fuel injection system 1 - idle adjustment screw; 2 - throttle lever; 3 - nozzle connector; 4 - a connector for throttle sensors; 5 – control...

Throttle valve — general information
The throttle valve is installed in the throttle body of the CFI assembly below the injector directly in front of the intake manifold and is connected to the accelerator...

Injectors — general information
The fuel injector, centrally located in the CFI assembly, is a solenoid valve that delivers a specific dose of fuel for the appropriate engine load condition. This dose...

Pressure regulator — general information
This regulator is installed directly in the housing of the CFI assembly. It controls the fuel pressure and maintains its value at the nozzle, equal to 1 bar. Excess fuel...

Injection system sensors — general information
Intake air temperature sensor This sensor is built into the intake duct and measures the temperature of the intake air. At the same time, its internal resistance...

Operation of the central injection system
Starting a cold engine When the ignition is turned on, the coolant temperature sensor sends a signal to the EEC-IV device "engine cold". In this case, the device...

Removal and installation of an injector
1. Remove ground wire from battery. 2. Remove intake silencer. 3. Remove connector from injector. 4. Bend the fasteners and unscrew the fastening bolts. 5. Remove the...

Safety precautions when working with the injection system
Do not start the engine with loose terminals on the battery. Do not disconnect the battery while the engine is running. When charging the battery from the charger,...

Diagnosis of malfunctions of the injection system
CAUSE ELIMINATION METHOD Cold engine won't start When the ignition is turned on, the fuel pump does not work Check voltage supply to fuel pump. If the pump does not work...