LEXUS RX 300

1998 - 2003 of launch

Repair and operation of the car

Lexus RX 300
+ Lexus RX-300 cars
+ Administrations and methods of operation
+ Placing and regular maintenance of the car
+ Motor
+ Cooling systems of the motor, heating, ventilation and air conditioning
- System of provision of power and production of the carried out gases
   - System of provision of power
      General information and measures of security
      To leave pressure in fuel system
      Beginning of functioning of a system of control of injection of fuel
      Checks of system of injection
      Removal and installation of the bomb of fuel, sensor of a reserve of fuel and regulator of pressure of fuel
      Removal and installation of fuel distributive roads and injectors
      Removal and installation of the tank of fuel and lines of fuel
      Removal and installation of the purifier of air
      Removal, installation and agreement of the case of a regulator and sensor TPS
      Removal and installation of component ones of the system ACIS
   + Systems of launch and reduction in toxicity of the carried out gases
+ Systems of electric equipment of the motor
+ Automatic exchange and differential interaxal
+ Transmission line
+ Brakes system
+ Support of the triangular form of interruption and direction
+ Body
+ Electric side equipment
+ Schematic diagrams of electric connections

Checks of system of injection

General checks

ORDER OF REALIZATION

Check a condition of the battery recarregável (to see Chapters of the Control and regular maintenance of the car and System of the electric equipment of the motor) and a condition of all the locks of security (to see the electric equipment of Front Side).
Separated and again they join all the captures of the corresponding electronic systems. Check the confidence of the fixation of captures and threads in a reason compartment.
Check the confidence of the fixation of all the connections of the weight.
Check the tension of hoses and oil pipelines, and also his connections, paying the special attention to the slits identification. Substitute component incorrect, hold tight the weakened captures of nipple.

Injectors check

The violation of the tension of valves of injectors of fuel is accompanied by difficulties in the launch of the hot motor. The injectors damage can be the cause of an explosion when the motor keeps on working in the ignition off.

ORDER OF REALIZATION

The motor begins in the only turns.
Through a stethoscope they are secured of the usefulness of the functioning of each separate injector, - the clicks existence indicates the usefulness of opening and close of valves.

The absence of near to to the hand the stethoscope check can be done to the touch - a finger or through the screwdriver.

In the moment of the identification of exceptional sounds, as well as in the total absence of that it is necessary to be secured of the usefulness of the offer in injectors of voltage of provision, to measure the electric resistance of injectors and the entirety of his rings of fighter.

Each injector checks the volume of injection of fuel. With this finality withdraw an injector (installation of the fuel sees the Removal of Section e a distributive roads and injectors), joins it to a tube toplivopodayushchy and more low in the measured capacity. Give the tension in contacts of the capture of the bomb of fuel, and soon during 15 seconds in contacts of an injector. The amount of measure of the fuel is injected by an injector. 2-3 times of each injector execute such an inspection and compare the results received with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases. If necessary an injector substitutes.

Desconecte an electrical system of an injector and check it holes – during his 12 minutes not more than a gasoline decrease has to pour out.

Check of the bomb of fuel

ORDER OF REALIZATION

Since the check of the usefulness of the functioning of the bomb of fuel separates the capture of his electrical system and gives in him the tension of battery. At the same time there will be pressure in a tube toplivopodayushchy (of the fuel bomb), and also the sound of the current gasoline has to be heard. Otherwise check locks of security of AM2 (30 A) and IGN (5 A), the alternation main EFI, the bomb of fuel and an electrical system of a system of provision of power.
Desconecte a negative wire of the battery recarregável, establishes between the manometer in the connection of a tube toplivopodayushchy and a negative wire adheres to the battery. Give the tension in contacts of the capture of the bomb of fuel, take leituras of the manometer and compare them with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases. If the pressure is overestimated, substitute the regulator of pressure of fuel; if the pressure is underestimated, check a condition of hoses of fuel and his connections, the filter of fuel and the regulator of the pressure of the fuel.
Execute the prior inspection in the motor begun in the only turns. The pressure must not be modified. Kill the motor and one secures what in the fuel system inside 5 minutes after putting out of the motor pressure not less than 1,45 atm they guard. Otherwise check the bomb of fuel, the regulator of the pressure of fuel and injectors.
Having separated the capture of the bomb of fuel, 4 and 5 measures the resistance between his contacts and compare the result with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases. If necessary the fuel bomb substitutes.

Check of the sensor MAF

ORDER OF REALIZATION

Separate the capture of sensor MAF, measure the resistance between contacts of E2 and THA of the sensor in different temperatures and compare the results received with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases. If necessary there substitutes the sensor MAF.

Join the capture, include the ignition and the voltômetro adheres to contacts of VG (+) and E2G (-) of the capture. One secures of the modification of indications of the voltômetro in the modification of an air current he was seeing the sensor. Otherwise substitute the sensor.

Check of the case of a regulator and sensor TPS

It carries out the controls described down after the removal of the case of a regulator or the valve IAC.

ORDER OF REALIZATION

Without withdrawing the case of regulator of the car they are secured of the smoothness of the course of the walk of a regulator.
One secures of the lack of slits between each superior screw of a regulator and the lever of a regulator during the creation of the depression of 0.53 atm in the mechanism of the opening of a valve of butterfly. At the same time between each screw of agreement and the lever of a regulator there will be a slit according to the demands of Specifications of the Head of the system of provision of Power and production of the carried out gases.

Slits check in the walk of a valve of butterfly.

1 - the Superior screws
2 - the Agreement screw in the party of close of the door
3 - the Agreement screw in the party of opening of the door

Completely open a butterfly valve and when a limit measured a slit by the agreement they support in the party of close and the lever of regulator. Compare when they resulted from measurements by demands of Specifications of the Head of the system of provision of Power and production of the carried out gases and if necessary agreement the walk of a valve of butterfly (to see the Removal of Section, installation and agreement of the case of a regulator and the sensor TPS).

Separate the capture of sensor TPS, measure the resistance between contacts of the sensor and compare the results received with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases.

Check of valve of IAC

The valve IAC fixes to the case of regulator of below of four screws; in the moment of the removal of the valve they substitute his placing.

Component of meeting of the case of a regulator


1 - they strangle the Section n ° 3 of if 2 - the Protective plate 3 - the Fighter ring 4 - the sensor TPS	5 - they strangle the Section n ° 1 of if 6 - Placing 7 - they strangle the Section n ° 2 of if 8 - the valve IAC

ORDER OF REALIZATION

Heat the motor up to the work temperature, check turns of wasting time (H / H), establish the transmission in the neutral situation and put out К/В.

Contacts of Peremknite of E1 and Tc of the capture DLC n ° 1. One secures that after the deduction of the speed of the rotation of an end of inclination of motor approximately 1.000 revolutions per minute inside 5 seconds establish turns of H / H again. If necessary there checks the valve IAC, an electrical system and ECM. 1 capture of DLC withdraws a point of passage of n °.

Separate the capture of the valve IAC and measure the resistance between his contact + B and other contacts. Compare when they resulted from measurements to demands of Specifications of the Head of the system of provision of Power and production of the carried out gases and if necessary the valve IAC substitutes.

Carry out checks and kill the motor.
Desconecte a hose of the mixture of air of an air tube and blockade an exit of the valve IAC and an entry in a tube. The motor begins and it is secured what works for 500 revolutions per minute less, or in general he goes deaf. Otherwise check leaks of the connection of hoses of the mixture of air, a tube and injectors.

One secure that the butterfly valve is the open half, join the capture of an electrical system of the valve IAC and include the ignition. One secures that during 0,5 I second the valve. the movements as debit to be of the position of the door completely closed to the position of the completely open door, and soon to position the half of the open door. In negative results of the check they substitute the valve IAC.

Check of valve of VVT-i

The valves of VVT-i fix to leaders of pins of cylinders (there see an illustration the Component ones of the installation of final collectors, sensors and an electrical system) with the effort of 8 nanômetros; in the moment of the removal of the valve they substitute his ring of fighter.

ORDER OF REALIZATION

Separate the capture of the valve and measure the resistance between contacts of the valve. Compare the result received with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases and if necessary the valve substitutes.

A wire of +12 V adheres to the contact of 1 valve and a wire of weight – to contact 2. At the same time the valve has to move in the direction specified by a continuous arrow. In the moment of the removal of the tension the valve has to move for the provision of a sprinkled arrow.

Check of component ones of the system ACIS

Component of the installation VSV of the ACIS and systems EVAP

1 - hose of EVAP
2 - VSV of the system EVAP
3 - the system EVAP Been overcome with VSV
4 - system of ACIS VSV n ° 2

5 - the system ACIS n ° 2 Been overcome with VSV
6 - the system ACIS n ° 1 Capture of VSV
7 - the Vacuum hose
8 - system of ACIS VSV n ° 1

ORDER OF REALIZATION

Check the valve of system ACIS. With this finality through a fendedor they install the measure of vacuum in a hose of vacuum of the activator of the system ACIS and control themselves the motor in the only turns – the arrow of the manometer must not move. In the moment of squeezing sharp one of the gas pedal pedal in a vacuum hose there will be a depression of 0.26 atm (the stick of the activator has to stretch out). The valve has to stretch out also during the compulsory creation of the depression specified in a hose of vacuum and must not return after this to an initial position inside not less than a minute.

Check the tank of vacuum located below a support of battery: the air will pass of the union B in the union A, but not on the contrary. After this check they cover the union B with a finger and they were believing the depression of 0.26 atm in the union one - must not be included in not less than a minute.

Withdraw the meeting of valves, desconecte two hoses of the checked VSV, the screw results and withdraw VSV.

VSV checks a slit in a chain, having measured the resistance between contacts of the capture VSV (between them there will be a condutividade). Compare the result received with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases. Then one secures of the lack of the condutividade between each one of contacts of VSV and his case. If necessary VSV substitutes.

It is secured what the air passes of the union E to the filter. Then give the tension of battery in contacts of VSV and it is secured what the air passes from the union E to the union F. If necessary VSV substitutes

The check of the alternation of a power supplies to the system

ORDER OF REALIZATION

Take the checked alternation (the alternation main EFI, the alternation of the heating of the sensor A/F or the alternation of a break of a chain) of the block of corresponding meeting (to see the electric equipment of Front Side).

Through an ohmmeter they secure the available condutividade between contacts of 1 and 2 alternations, and also of the lack of the condutividade between contacts 3 and 5. 1 applies the tension of battery to contacts (+) and 2 (-) and the available condutividade is secured between contacts of 3 and 5 alternations. If the checks produced unsatisfactory results, substitute defective alternations.

Check of VSV of the system EVAP

ORDER OF REALIZATION

Carry out checks.

One secures that the air you punish raisin of the union E to the union F. Then give the tension of battery in contacts of VSV and it is secured what the air passes from the union E to the union F. If necessary VSV substitutes.

Check of the valve VSV of the tank shut (CCV)

Component of the installation VSV of the valve CCV

1 - the Capture of sensor MAF
2 - the valve VSV CCV
3 - the Vacuum hose

4 - the Fighter ring
5 - the Capture VSV of the valve CCV
6 - a Covering of purifier of air

ORDER OF REALIZATION

Separate captures of an electrical system of the MAF and sensor VSV of the valve CCV, and also his vacuum hose.

Result two screws and withdraw the valve VSV CCV with a fighter ring.

The measure resistance between contacts of the capture VSV and compare it with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases, one secures of the lack of the condutividade between contacts of VSV and his case. If necessary VSV substitutes.

One secures which air steps of the union one to the union B, soon gives the tension of battery in contacts of VSV and one secures that the air does not pass of the union one to the union B. If necessary VSV substitutes.

Check of the valve VSV of a purge of an adsorber

Component of the installation VSV of the valve of a purge of an adsorber


1 - Meeting from a coal adsorber 2 - the adsorber purge the valve Been overcome with VSV	3 - the adsorber purge the valve VSV 4 - Protection from a coal adsorber

ORDER OF REALIZATION

Separate the capture and two hoses and withdraw VSV from a coal adsorber.
Execute an inspection.

One secure what the air does not pass from the union E to the union F, soon give the tension of battery in contacts of VSV and it if is secured what the air passes from the union E to the union A. If necessary VSV substitutes.

Check of the sensor of ECT

ORDER OF REALIZATION

Empty the system of cooling (to see the Substitution of Section of Cooling Liquid (CL)), separates the capture of the sensor of ECT of a system of control of the motor and the sensor results a key of deep face.

The measure resistance between contacts of the sensor and it compares results with the reference diagram. If necessary the sensor substitutes together with his placing.

Check of the sensor of pressure of evaporation of fuel

Position of the sensor of evaporation of fuel

1 - the Section n ° 3 of protection of the tank of fuel
2 - the Sensor of evaporation of fuel
3 - the Capture of the sensor of evaporation of fuel
4 - the Armband

5 - the plate of Agreement of a tube of ventilation
6 - the Basic plate of a tube of EVAP
7 - Placing

ORDER OF REALIZATION

There withdraws the meeting of the tank of fuel, the section n ° 3 of his protection and withdraw the sensor of evaporation of fuel.

Include the ignition and measure the tension between extreme contacts (VC and E2) from the capture in an electrical system of the sensor of evaporation of fuel – it will do 4.5÷5.5 century.

Join the capture of an electrical system of the sensor of evaporation of fuel, join the voltômetro to contacts of E2 (-) and PTNK (+) and include the ignition. Compare indications of the voltômetro for several values of the pressure in the sensor to demands of Specifications of the Head of the system of provision of Power and production of the carried out gases.

If the enumerated above checks produced unsatisfactory results, substitute the sensor.

Check of sensors of an explosion

ORDER OF REALIZATION

Separate the capture of sensor of explosion (the Component inter-connected ones see an illustration to the cylinder block) and one secures of the lack of the condutividade between his contact and the case. If the condutividade happens, substitute the sensor (sensors).

The check of sensors A/F and lambda it tries 2 lines of cylinders 1

ORDER OF REALIZATION

Check the resistance of the heating of sensors of the quality of the mixture of air fuel. With this sole finality an ohmmeter to contacts + B and HT and compare his indications with demands of Specifications of the Head of the system of provision of Power and production of the carried out gases. If necessary the sensor (sensors) substitutes.

Withdraw the seat of a driver and a covering of a floor (to see the Body) then separates the capture of electrical system a probe of lambda 2 cylinders lines 1 and measure the resistance between contacts + B and HT. Compare the result of the measurement to demands of Specifications of the Head of the system of provision of Power and production of the carried out gases and if necessary a probe substitutes of lambda.