Car engine power supply system VAZ-2115

All articles on the device and repair of components and assemblies of the fuel supply system of the gasoline engine of VAZ-2115 cars (Lada Samara 115, sedan) and their modifications.

Features of the power supply system design
The diagram of the fuel supply system with distributed injection is shown in Fig. 4.19. 4.19. Fuel supply system with distributed injection: 1 – fuel pressure control nipple; 2 –...

Reducing pressure in the fuel system
Warning! The fuel system of a fuel-injected engine has a pressure of 30 MPa (3 kgf/cm²). Therefore, it is prohibited to loosen the fuel line connections while the engine is...

Replacing the air filter element
The replacement of the air filter element is regulated and is performed every 30,000 km. The condition of the filter element depends on the operating conditions of the car: on...

Removal and installation the air filter
The manufacturer recommends cutting off the rubber supports when removing the filter. In this case, they will have to be replaced with new ones. You will need a screwdriver. 1....

Replacing the fuel filter
The replacement of the fine fuel filter is regulated - every 30,000 km of run. However, its condition depends on the quality of gasoline: the dirtier the gasoline, the faster the...

Removal and installation the fuel tank
If a fuel leak is detected from the tank, it is recommended to replace the tank. If the fuel pump screen often becomes clogged, remove and flush the tank. If a leak is detected...

Removal, repair and installation of the fuel pump
If the engine power drops, increased noise is heard, or periodic "howling" is heard when the fuel pump is operating, then most likely the fuel pump has failed. First, check the...

Checking and replacing injectors
Signs of faulty injectors: difficult engine starting; unstable engine operation; engine stalls at idle ; increased crankshaft speed at idle; the engine does not develop full...

Checking and replacing the fuel pressure regulator
Signs of a faulty fuel pressure regulator may include: unstable engine operation; engine stalls at idle; increased or decreased idle speed of the crankshaft; engine does not...

Replacing the throttle cable
If the throttle actuator cannot be adjusted to fully open or close the throttle valve, or if the actuator sticks, replace the throttle actuator cable. You will need: a...

Adjusting the throttle actuator
You will need: two 13 mm wrenches, a Phillips-head screwdriver. 1. Disconnect the air supply pipe 1 from the throttle body and the hose 2 of the large branch of the crankcase...

Removal and installation the throttle assembly
Signs of a throttle valve that does not close completely may include increased idle speed and fuel consumption; signs of not opening fully are as follows: the engine does not...

Fuel vapor recovery system
So, in the engine compartment, there is an adsorber for the fuel vapor recovery system: 1 – adsorber; 2 – electromagnetic valve for purging the adsorber; 3 – connecting hoses....

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More articles from other manuals on VAZ cars:
➠ Power unit: Power and exhaust system VAZ-21051 (1979-2010)
➠ Power unit: Supply system VAZ-1111 (1988-1996)
➠ Power unit: Supply system VAZ-2106 (1976-2006)
➠ Power unit: Supply system VAZ-2112 (1999-2007)
➠ Power unit: Supply system VAZ-2109 (1984-1997)

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