Toyota Camry

1992-1997 of release

Repair and operation of the car



Kamri's Toyota
+ General data
+ 1. Maintenance
+ 2. Engine
+ 3. Six-cylinder V6 engines
+ 4. Capital repairs of engines
+ 5. Cooling and heating
- 6. Fuel system
   6.2. General information
   6.3. Removal of pressure in fuel system
   - 6.4. Check of the fuel pump
      6.4.2. Check of pressure created by the fuel pump
      6.4.3. Check of the regulator of pressure of fuel
      + 6.4.4. Check of the relay of the fuel pump
   6.5. Fuel pump
   + 6.6. Fuel level sensor
   6.7. Fuel tank
   6.8. Air filter
   + 6.9. Accelerator cable
   6.10. Electronic system of injection of EFL fuel
   + 6.11. Fuel system
   6.12. Check of system of injection of fuel
   + 6.13. Check and replacement of elements of system of injection of EFI fuel
   6.14. Fuel highway and fuel nozzles
   + 6.15. Valve of the mode of idling of the air conditioning system
   6.16. Air inlet chamber (only V6 engines)
+ 7. System of ignition
+ 8. Toxicity decrease
+ 9. Transmission
+ 10. Automatic transmission
+ 11. Coupling and power shafts
+ 12. Brake system
+ 13. Suspension bracket
+ 14. Body
+ 15. Electric equipment





6.4.3. Check of the regulator of pressure of fuel

GENERAL INFORMATION

Arrangement of the switching vacuum valve (VSV) on the engine


PERFORMANCE ORDER
1. Disconnect a vacuum hose from the fuel pressure regulator and instead of it connect the manual vacuum pump with the manometer. Start the engine and measure fuel pressure without vacuum given to pressure regulator. The manual vacuum pump create depression and repeatedly measure pressure in fuel system. At increase in the vacuum enclosed to pressure regulator, pressure in fuel system has to decrease.
2. Repeatedly connect a vacuum hose to the regulator of pressure and check pressure in fuel system on idling turns. Disconnect a vacuum hose from pressure regulator, thus pressure in fuel system has to increase to the maximum sharply. If pressure in fuel system on idling turns too high, connect the manometer to a vacuum hose and check vacuum. If the vacuum is absent, check a condition of the switching vacuum valve (VSV).
3. Using an ohmmeter, check resistance between plugs of the switching vacuum valve which has to be within 30–40 Ohms.
4. Using an ohmmeter, check that windings of the switching vacuum valve are not connected to weight.
5. If pressure in fuel system too low, press the return fuel-supply line and measure pressure. If pressure does not increase, means the fuel pump is faulty. If pressure in fuel system sharply increases, replace the fuel pressure regulator.