Toyota Camry

1996-2001 of release

Repair and car operation

Toyota Camry
+ 1. The maintenance instruction
+ 1.2. The information before car driving
+ 1.3. Independent maintenance service
+ 1.4. Technical characteristics
+ 1.5. Some councils at car purchase
+ 2. Maintenance service
+ 3. Engines
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
- 7. An exhaust system
   - 7.2. Systems of decrease in toxicity of the fulfilled gases
      7.2.2. Technical characteristics
      7.2.3. OBD II-system
      7.2.4. II-system computer OBD (Powertrain Control Module)
      7.2.5. The gauge of turn throttle заслонки
      7.2.6. The gauge of absolute pressure in a soaking up collector
      7.2.7. The gauge of the mass expense of air
      7.2.8. The gauge of temperature of soaked up air (IAT-gauge)
      7.2.9. The gauge of temperature of a cooling liquid (ECT-gauge)
      7.2.10. The rotation gauge коленвала
      7.2.11. The gauge of rotation of a cam-shaft
      7.2.12. The contact gauge of pressure of the hydraulic booster
      7.2.13. The gauge of the maintenance of oxygen in the fulfilled gases
      7.2.14. The detonation gauge
      7.2.15. The gauge of speed of the car
      7.2.16. Перепускной the air valve of idling (IAC-valve)
      7.2.17. System of a choice of the channel всасывания (ACIS-system)
      7.2.18. Ventilation system картера
      7.2.19. System recycling
      7.2.20. System of catching of steams of gasoline
      7.2.21. Neutralizer
      7.2.22. Three in one – or how to save the catalyst
+ 8. Transmission
+ 9. A running gear
+ 10. Brake system
+ 11. A body
+ 12. An electric equipment


7.2.13. The gauge of the maintenance of oxygen in the fulfilled gases

The oxygen gauge

1. A seat socket
2. A socket of the secondary gauge
3. A cover
4. A collar
5. The first gauge

The oxygen gauge is intended for signal formation on which basis the computer defines the oxygen maintenance in exhaust gases and supports стехиометрический gas mixture structure (14,7 parts of air to 1 part of gasoline) at the expense of change of duration of injection of fuel. The signal of low level (0,1) from the gauge corresponds to the impoverished mix, and a signal of high level (0,9) – the enriched mix.

On considered cars 2 gauges of oxygen – on an input and an exit каталитического neutralizer are established. If the gauge temperature more low 340 With the signal from the gauge is absent and before warming up of the engine system the gauge – the computer works in a mode of the opened cycle. If after warming up of the engine the signal does not exceed 0,45 In at turns above 1500 rpm the mode of the opened cycle remains, and for processing instead of a signal from the gauge the data by default, brought in memory of the computer is used.
The prevention

At gauge check it is forbidden to disconnect from it a flexible conductor, to overwind conducting, and also to subject the gauge to sharp mechanical influences. It is forbidden to apply solvents to cleaning of the gauge.


1. Insert needle probeы the voltmeter into a gauge socket, on conclusions 3 (the positive plug of the voltmeter) and 4 (the negative plug) – in the 4-cylinder engine. Lift car redock. For access to a socket of the second gauge it is required to remove a forward seat.
2. Start the engine and watch indications of the voltmeter in process of engine warming up. On the cold engine pressure should be 0,1–0,2 V.Na the heated-up engine pressure should start to fluctuate within 0,1–0,9 In (the mode of the closed cycle joins). If the mode of the closed cycle does not join, or joins with the big delay the gauge replace.
3. Check up serviceability of a heater of the gauge, having measured resistance between conclusions НТ and In + a socket which should be 11–16 Ohm.
4. Check up presence of pressure of the battery between a conclusion In + from outside a socket from the computer and weight (ignition should be included).


1. Start the engine for 1–2 minutes Disconnect the battery from weight and lift the car.
2. Cautiously disconnect from the gauge a socket and turn out the gauge накидным a key with cut.