Description of the design of the fuel injection system Intake manifold injection with Zetec-SE engine: 1 - intake camshaft; 2 - nozzle; 3 - inlet channel; 4 - spark plug For a long time now, under the hood of modern cars,...
General view — EEC-V injection system control Fuel system: sequential fuel injection (SF1) injection valves with four holes Air suction system: air quantity meter (MAF sensor); works on the principle of a hot-wire...
In detail — control of the injection system EEC-V EEC-V-PCM control unit (integrated PATS): electronic engine control center. The on-board computer constantly processes up-to-date information material (speed, intake...
Visual inspection of the injection system Periodically check the following hoses and their fittings for correct fit and fatigue cracks: 1. Vacuum hose to the absolute pressure sensor. 2. Vacuum hose for the...
Checking the idle speed The idle speed is constantly adjusted by the control unit via the idle speed servomotor, depending on the consumer switched on (e.g. headlights, air conditioning or...
Blocking idle fluctuations in the system If the battery has been disconnected, give the on-board computer a head start of about 8 km in order to program all elements with basic data. Otherwise, proceed as...
Checking the idle servomotor Start the engine at idle. Include as many consumers as possible. If your Focus has servo control, turn the steering wheel all the way. The idle speed should decrease for...
Checking injection valves You can find a defective injection valve by simply probing with your hand. The valve does not vibrate when the engine is running, unlike others. But you should carry out...
Throttle cable replacement The connection between the accelerator pedal and the throttle valve in Focus diesel engines provides «electric cable», special term - «drive-by-wire». All Focus models...