CFI fuel injection system Ford Escort 4

CFI fuel injection system — design description

General view of the CFI fuel injection system 1 – idle speed adjustment screw; 2 – throttle lever; 3 – injector connector; 4 – throttle position sensor connector; 5 –...

Throttle valve — general information

The throttle valve is mounted in the throttle body of the CFI unit under the injector just before the intake manifold and is connected to the accelerator pedal by a...

Injectors — General Information

The fuel injector, centrally mounted in the CFI unit, is a solenoid valve that delivers a specific dose of fuel for the corresponding engine load condition. This dose of...

Pressure regulator — general information

This regulator is installed directly in the CFI unit housing. It controls the fuel pressure and maintains its value at the injector equal to 1 bar. Excess fuel is...

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. In doing so, its internal resistance changes, the...

Functioning of the central injection system

Starting a cold engine When the ignition is turned on, the coolant temperature sensor sends a "engine cold" signal to the EEC-IV device. The device enriches the fuel...

Removing and installing the injector

1. Remove the ground wire from the battery. 2. Remove the intake silencer. 3. Remove the connector from the injector. 4. Bend back the fasteners and unscrew the mounting...

Safety precautions when working with the injection system

Do not start the engine if the battery terminals are loose. Do not disconnect the battery while the engine is running. When charging the battery from a charger,...

Diagnostics of injection system faults

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




Escort 5 
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