This section only briefly describes the malfunctions of the fuel injection system caused by the failure of certain sensors. The procedure for removing and installing power system components is given in subsections «Engine power system» And «Electronic engine management system» (Operation of the fuel injection system).
The feedback fuel injection system has a catalytic converter and an oxygen concentration sensor that provides feedback. The oxygen concentration sensor monitors the oxygen content in the exhaust gases, and the electronic control unit, using its signals, maintains the air-fuel ratio at which the catalytic converter works most efficiently.
On a Lada Kalina car, check the fuel injection system in the following order.
1. Check the connection with «weight» engine and battery.
2. Check the fuel filter and fuel pump.
3. Check the fuses and relays for switching on the elements of the fuel injection system.
4. Check up reliability of contacts in sockets with wires of elements of system of injection of fuel.
5. Check up gauges of system of injection of fuel. On a Lada Kalina car, most fuel injection system malfunctions are caused by the failure of its following sensors:
- crankshaft position sensor - complete failure of the fuel injection system, the engine does not start;
- mass air flow sensor (DMRV) - an increase in fuel consumption, a significant deterioration in dynamics, problems with the engine plant;
- throttle position sensor (TPS) - loss of power, jerks and dips during acceleration of the car Lada Kalina, unstable idling;
- coolant temperature sensor (DTOZH) - difficulties with starting the engine in cold weather, you have to warm up the engine, maintaining the speed with the accelerator pedal (gas), when the engine overheats, power is significantly reduced, detonation appears;
- knock sensor - the engine is very sensitive to the quality of gasoline, an increased tendency to knock;
- oxygen concentration sensor (Lambda probe) - increased fuel consumption, reduced engine power, unstable idling. Possible damage to the catalytic converter of exhaust gases;
- speed sensor (mounted on the gearbox housing) - possible deterioration of the dynamic qualities of the car Lada Kalina and an increase in fuel consumption.