Fuel injection system (FE engine) of car Mazda 626 (4)

Fuel injection system — fe engine, camshaft
The details of the fuel system used in the 2.0-liter engine are shown in Figure 139. The system is controlled electronically, and only the work described on the...

Air intake system
It regulates the amount of air required for the engine to operate. The system consists of an intake manifold, air filter, air flow meter, throttle body, air intake...

Idle speed control system
The idle speed control system mainly consists of an air valve and a solenoid-actuated air bleed valve. The air valve is heated by a bimetallic plate and a heating coil...

Power supply system
This system supplies the injectors with the gasoline required for combustion at a constant pressure. Fuel is metered in the intake manifold and injected in accordance...

Brake assist control system
This system consists of a throttle damper and a fuel shut-off system. The throttle damper prevents exhaust gas neutralization so that the throttle valve can open slowly...

Air supply system
This system delivers secondary air into the exhaust system to stabilize idle speed. The air regulator valve, air valve and bleed valve are connected to this system. The...

Exhaust gas recirculation system
This system returns exhaust gases to the intake manifold to limit the toxic components of these exhaust gases. The system depends on the engine load and engine speed...

Idle speed adjustment
Based on the automatic fuel-air mixture compensation function implemented in the engine control unit, there is no need to monitor or adjust the fuel mixture, meaning...

Vacuum hoses
Vacuum hoses of different colors are used between individual units. If any hose is disconnected, the exact connection points must be marked. This is especially important...

Removal and installation of system parts
Figure 144 shows the most important components of the fuel injection system installed in the engine compartment, together with their tightening torques. Figure 144....

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More sections on repairs of other Mazda models
• Model «B» engine: Power system (injector) Mazda Familia 5 (1985-1989)
• Power unit: Fuel injection (gasoline) Mazda 121 (3) (1996-2003)

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Capella 5 (1991-1997)