Description of the design of the fuel system Fuel system. 1 - Fuel filter, 2 - Fuel tank, 3 - Fuel filler pipe, 4 - Fuel filler trim, 5 - Fuel pump assembly. Air-fuel ratio control circuit diagram: 1 - nozzle; 2 - exhaust manifold; 3 - control sensor for oxygen...
Siemens fuel injection system «Sirius 32» Note. the Siemens injection system is described below "Sirius 32" for the K7J 700 engine, the K4J engine uses a similar system with some design differences. General information Table. The main components of the Siemens...
Relieving pressure in the engine injection system When the ignition is turned on or when the engine is running, the fuel pump creates a gasoline pressure in the system that reaches 3 bar. The pressure in the system remains for some time after the ignition is turned...
Removal and installation of the fuel pump Removing relieve pressure in the power supply system; remove the wire from the negative terminal of the battery; raise the back seat; remove the metal hatch cover in the rear floor to gain access to the pump cover;...
Removal, installation and adjustment of the throttle cable Removing Figure 3.100. intake muffler (arrow): 1 - inlet of the crankcase ventilation system remove the air filter and intake silencer (Figure 3.100); Figure 3.101. Detachment of the cable from the sector on the...
Removal and installation of the throttle body Removing relieve fuel pressure in the system; disconnect the wire from the negative terminal of the battery; remove the air filter; disconnect the throttle cable from the sector; disconnect the connector on the throttle...
Removal and installation of the fuel distribution rail Figure 3.104. Removing the fuel rail: 1 - fitting of the fuel supply pipeline; 2 - contact connectors for injectors; 3 – a contact socket of the gauge of a detonation; 4 – ramp fastening bolts Refer to Figure 3.104 for...
Removal and installation of the idle speed regulator Removing disconnect the contact connector of the stepper motor of the regulator; remove the crankcase ventilation hose; Remove the three regulator mounting bolts. Installation Installation is carried out in the reverse...
Fuel supply switch in case of collision The switch is designed to prevent the occurrence of a fire due to the leakage of fuel during a collision. Upon impact, all mechanisms for supplying fuel from the tank are disabled. They are brought into working...
Removal and installation of various sensors Attention! The upper and lower sensors have different characteristics and are not interchangeable. Removal and installation of the top gauge of concentration of oxygen in the fulfilled gases Removing disconnect the wire...
Removal and installation of the electronic control unit (ECU) The unit is installed on the left side of the engine compartment behind the battery. Removing remove the wire from the negative terminal of the battery; disconnect the mount of the power steering reservoir from the...
Removal and installation of an inlet collector Figure 3.110. Removing the intake manifold: And – bolts of fastening of the case throttle; 1–7 - the sequence of tightening the mounting bolts Refer to Figure 3.110 for operation. Removing disconnect the wire from the...
Removal and installation of a final collector Figure 3.111. Removing the exhaust manifold: 1 - oxygen concentration sensor in exhaust gases; 2 - brace Figure 3.112. Exhaust manifold tightening sequence Refer to Figures 3.111 and 3.112 when working. remove the heat...
Checking and adjusting the injection system If a malfunction occurs in the fuel injection system, you should first check the reliability of all connectors and connections. Make sure that the air and fuel filters are clean, that the crankcase ventilation hoses and...
Fuel tank — removal and installation Attention! When working with fuel system components, observe fire safety measures. Fuel tank diagram. 1 - Fuel tank vent valve, 2 - Restriction valve, 3 - Overfill and tip-over valve, 4 - Overflow valve ball, 5 - Tank...
Fuel pump and fuel gauge Attention! Observe fire safety precautions when working on the fuel system. Removing 1. Disconnect the battery. 2. Raise the rear seat cushion. 3. Remove the fuel tank access cover. 4. Disconnect the connector (1) fuel...
Fuel manifold and injectors of the K4J engine SIEMENS DEKA injectors are fixed on the fuel manifold with spring clips. Fuel is supplied to the injectors under pressure, thereby preventing the formation of vapor locks and ensuring reliable engine starting. Injector...
Throttle assembly for K4J engine Throttle assembly: 1 - idle speed regulator; 2 - throttle actuator lever; 3 - throttle valve; 4 - throttle position sensor; 5 - throttle body Throttle Body and Idle Control Actuator (K4J engine) Tightening torques...
Manifolds and throttle body (K7J engine) Tightening torques, Nm Intake manifold mounting bolt - 25±02 Exhaust manifold mounting bolt - 25±02 Bolt of fastening of a reception pipe to a final collector — 20±02 Manifolds and throttle body (K7J engine). 1 - Air...
Engine air filter K7J engine 1. Remove the air filter. Remove the air filter housing cover and remove the filter. 2. Check the air filter and make sure it is not damaged or has oil stains. Replace the air filter if necessary. 3. Install...