Toyota Land Cruiser 100/Amazon, Lexus LX 470

since 1997 release

Repair and operation of the car



Toyota Land Cruiser, Amazon, Lexus LX470
+ Identification numbers of the car
+ Governing bodies and methods of safe operation of the car
+ Settings and routine maintenance of the car
+ Engine
+ Cooling systems of the engine, heating of salon and air conditioning
+ A power supply system and production of the fulfilled gases
+ Engine electric equipment
- Control systems of the engine and decrease in toxicity of the fulfilled gases
   Specifications
   System of onboard diagnostics (OBD) - the principle of functioning and codes of malfunctions
   Application of an oscillograph for observation of working signals of a control system
   Check of a state and replacement of ESM
   Information sensors - the general information and check of serviceability of functioning
   Replacement of information sensors
   System of catching of fuel evaporations (EVAP) - the general information, check of a state and replacement of components
   System of the operated ventilation of a case (PCV)
   The catalytic converter - the general information, check of a state and replacement
+ Gear shifting box
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


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Control systems of the engine and decrease in toxicity of the fulfilled gases

General information

For the purpose of decrease in level of issue in the atmosphere of the toxic components getting into composition of the fulfilled engine gases as a result of evaporation and incompleteness of combustion of fuel and also for maintenance of efficiency of return of the engine and decrease in fuel consumption, the cars considered in the present manual are equipped a number of special systems which can be united under the general name of control systems of the engine and decrease in toxicity of the fulfilled gases. The complete set of systems depends on year of release of models and the region on whose market the car is delivered. Full information on type to structure of systems is given in the information label of VECI fixed under a cowl (see Introduction).

The scheme of laying of hoses can be provided on separate Schild.

It is necessary to carry the following to number of the systems concerning management of operation of the engine and control of toxicity of the fulfilled gases:

  1. System of pulse admixture of air (PAIR);
  2. Catalytic converter;
  3. System of catching of fuel evaporations (EVAP);
  4. The system of recirculation of the fulfilled gases (EGR) – is used only on diesel engines;
  5. System of the operated ventilation of a case (PCV);
  6. System of onboard diagnostics (OBD);

More detailed information on control systems of the engine and decrease in toxicity of the fulfilled gases of your car can be received in representative office of the company manufacturer.

Functioning of all listed systems, anyway, directly or indirectly, is connected with management of decrease in toxicity of the fulfilled gases. In the Sections given below the general descriptions of the principles of functioning of each of systems are given, and also procedures of diagnostic checks and recovery repair (if that is obviously possible) separate components which performance lies within qualification of the average amateur mechanic are stated

The scheme of laying of vacuum lines on the V8 1998 models of of the issue.

The scheme of laying of vacuum lines on the V8 1999-2000 models of of the issue.

The scheme of laying of vacuum lines on the V8 models

Before coming to conclusion about refusal of toxicity, any of systems of decrease, attentively check serviceability of functioning of power supply systems and ignition (see Chapters of the Power supply system and production of the fulfilled gases and engine Electric equipment). Diagnostics of some of knots of systems of decrease in toxicity demands use special, difficult in application, the equipment and a certain qualification of the performer, and therefore, its performance will be reasonable to charge to professional mechanics of specialized car repair shop. Told above does not mean that service and repair of components of systems of decrease in toxicity in practice are represented exigeant. It is necessary to remember that one of the most common causes of refusals is elementary violation of quality of vacuum or electric contact connections, and therefore, first of all it is always necessary to check a condition of electric sockets and nipple connections of vacuum lines (address illustrations above). The owner of the car can independently and it is rather easy to make a number of checks, and also, to perform a set of procedures of routine maintenance of the majority of components of systems in house conditions, using at the same time a usual set of the adjusting and metalwork tool.

Do not forget about additional federal guarantee certificates under which components of systems of decrease in toxicity and management of operation of the engine get. Before starting implementation of any procedures on repair of knots and details of these systems, consult about conditions of observance of these obligations in representative office of the Toyota company.

Try to observe everything the measures of precautions stipulated in the following Sections when performing service of electronic components of the considered systems. It is necessary to notice that illustrative material can not always correspond in accuracy to real placement of components on the car. Such discrepancies are connected with continuously happening process of modification within a standard design of each model.