Car engine ignition system Ford Focus Turnier 1

Description of the design of the ignition system
Elements of the ignition system: 1 - ignition wire; 2 - ignition coil; 3 - spark plugs Touch control: The ignition system in the Focus is a high-performance electronic...

The main components of the ignition system
Pressure meter: connected by a hose to the intake manifold, supplies the control unit with information about the reduced pressure in the intake manifold. The sensor is a...

Ignition coil
In order for spark plugs to spark, a high voltage must be discharged across their electrodes. Depending on the ignition system, the discharge voltage exceeds 30,000 V....

Constant High Temperature — Spark Plugs
The task of the spark plugs is to ignite the air-fuel mixture in the combustion chamber. This results in temperatures of around 2500°C and pressures of up to 60 bar. In...

What does the spark plug face say?
Spark plugs are, to some extent, the main witnesses to the combustion process. The appearance of the spark plug electrodes (spark plug face) tells the specialist whether...

Safety instructions for working on the ignition system
The legislator classifies the ignition system as dangerous equipment. Therefore, during all work on the ignition system, you must observe special safety measures. For...

Replacing spark plugs after at least 60,000 km of run
In terms of maintenance, Ford requires the replacement of spark plugs every 60,000 km. But if your car with old spark plugs starts up more reluctantly than before, or...

Help with malfunctions of the ignition system
Help with malfunctions of the ignition system

Ignition off
The central control unit in your Focus can be damaged if you crank the engine with the starter while the ignition wires are disconnected. Therefore, before carrying out...

Checking the speed sensor with a multimeter
By measuring resistance with a multimeter (see also chapter « Vehicle electrical equipment ») you check the functioning of the speed sensor. To be sure that the distance...

Checking the pressure sensor
Disconnect the hose at the pressure sensor and close with your finger Have your assistant start the engine with the starter and bring it up to medium speed (about 2000...

Ignition current measurement
Disconnect any spark plug connector and remove the spark plug. Reconnect the connector to the removed spark plug and place it with perfect ground on the engine block. Be...

Ignition coil resistance measurement
Reliable measurement requires a functioning motor control. In high-voltage ignition systems, the primary resistance can also be checked with a multimeter in test mode....

Removing the ignition module
Disconnect the battery ground wire. Disconnect the wire connectors at the ignition module. Unscrew the fixing bolts and remove the ignition module from the holder. Fit...

Diesel pre-glow system
From experience, a cold diesel engine is usually not easy to start. Although direct-injection engines are less sensitive than pre- or swirl-chamber engines, without...

Checking the pre-glow system
If you suspect a defect in the pre-glow system of a diesel engine, proceed as follows: Check the fuses in the engine electrics. Is the main fuse OK? (socket 1) onboard...

Checking the pre-glow relay
Remove the cover from the fuse box in the engine compartment. Relay Function Test (black, slot 9), if necessary, replace it.

Checking glow plugs
Disconnect the battery. Disconnect wire connectors. Remove the glow plugs from the cylinder head using a suitable socket wrench. Lay the glow plugs on a fireproof...