Toyota Corolla

1992-1998 of release

Repair and car operation

Into structure of fuel system enter:

      – fuel tank;
      – the electric fuel pump (it is mounted in a fuel tank);
      – main relay of system of injection and relay of the fuel pump;
      – nozzles;
      – regulator of pressure of fuel;
      – air filter;
      – butterfly valve chamber.

All cars considered in this management, are equipped with system of direct injection of fuel with electronic control (MPFI system).

System of direct injection of fuel (MPFI – system)

Cистема of direct injection of fuel provides consecutive supply of fuel in engine cylinders under the influence of the operating impulses synchronized with the moment of opening of inlet valves. Management of injection is provided by means of the electronic control unit (ESM block). The electronic control unit traces various parameters of the engine and provides an exact dosage of the fuel injected in strict sequence into inlet channels of cylinders. The butterfly valve is intended only for regulation of amount of air submitted to cylinders. As nozzles of cylinders are screwed in close proximity to inlet valves, more exact control of a ratio of gasoline and air in gas mixture is provided

Fuel pump and highway of supply of fuel

Fuel is selected from a tank, moves in system of injection and comes back back to a tank via two metal pipelines, mounted under the body bottom. The electric fuel pump is mounted together with the fuel level sensor in a tank. Pairs of gasoline and warm gasoline come back to a tank on the separate highway.

The fuel pump turns on at a stage of start-up of the engine a starter or right after engine start. During start-up and operation of the engine on the control unit reperny impulses from the block of electronic ignition (see subsection 3.3.8) arrive. The fuel pump is disconnected later 2–3 seconds after the termination of receipt of reperny impulses.

System of production of exhaust gases