Subaru Legacy

since 1990-1998 release

Repair and operation of the car



Subaru of Legasi
+ 1.1. Identification numbers
+ 2. Maintenance
+ 3. Engines
+ 4. Heating, ventilation
+ 5. Fuel system
- 6. Exhaust system
   6.1. Service of final system
   - 6.2. Reduction of toxicity of exhaust gases and management of operation of the engine
      6.2.1. Technical characteristics
      6.2.2. System of self-diagnostics (OBD) and codes
      6.2.3. Block of electronic control (ECM)
      6.2.4. Sensor of temperature of cooling liquid
      6.2.5. Sensor of provision of a butterfly valve
      6.2.6. Sensors of a cranked shaft, camshaft, car speed
      6.2.7. Oxygen sensor
      6.2.8. Air stream sensor
      6.2.9. Detonation sensor
      6.2.10. Pressure sensor in an inlet collector
      6.2.11. Replacement of the sensor of temperature of cooling liquid
      6.2.12. Replacement of the sensor of a stream of air
      6.2.13. Replacement of the sensor of oxygen
      6.2.14. Replacement of the sensor of provision of a butterfly valve
      6.2.15. Replacement of the sensor of an angle of rotation of a cranked shaft
      6.2.16. Replacement of the sensor of provision of a camshaft
      6.2.17. Replacement of the sensor of a detonation
      6.2.18. Replacement of the sensor of speed of the car
      6.2.19. Replacement of the sensor of pressure
      6.2.20. System of repeated burning of exhaust gases (EGR)
      6.2.21. System of catching of vapors of fuel (EVAP)
      6.2.22. System of compulsory ventilation of a case (PCV)
      6.2.23. Catalyst
+ 7. Systems of start, ignition
+ 8. Transmissions
+ 9. Coupling, shaft
+ 10. Brake system
+ 11. Suspension bracket
+ 12. Steering
+ 13. Body
+ 14. Electric equipment





6.2.10. Pressure sensor in an inlet collector

GENERAL INFORMATION

Pressure sensor

1 – pressure sensor
2 – sealing ring
3 – case
4 – pipe
5 – condenser
6 – contact
7 – internal connection
8 – pitch
9 – sensor cover

Check of the sensor of pressure in an inlet collector by means of the manual vacuum pump and the voltmeter


The sensor measures pressure in an inlet collector which changes at change of load of the engine and issues information in the form of output tension. The ESM block uses information from pressure sensor for management of supply of fuel and the ignition moment.

Check

PERFORMANCE ORDER
1. For check of the sensor include ignition, without starting the engine, and measure tension given to the sensor which has to be equal 5 Century.
2. For check of output tension of the sensor disconnect a vacuum hose from the sensor and connect the manual vacuum pump.
3. Disconnect the electric socket from the sensor and, using the voltmeter, measure tension on contacts of the sensor.
4. Creating various vacuum by means of the manual vacuum pump and watching indications of the voltmeter, check the size of output tension of the sensor depending on vacuum size (see rice. Check of the sensor of pressure in an inlet collector by means of the manual vacuum pump and the voltmeter).
5. On the engine with a turbocharger check resistance of the coil of the sensor of pressure which has to make from 37 to 48 Century.