Mitsubishi Galant
+ Identification numbers of the car
+ Controls
+ Options and routine maintenance
+ The engine
+ Cooling and heating systems
+ The power supply system and release
+ Engine electric equipment
- Control systems of the engine
Specifications
System of operated ventilation картера (PCV) - the general information, check of a condition and replacement of components
System of catching of fuel evaporations (EVAP) - the general information, check of a condition and replacement of components
System рециркуляции the fulfilled gases (EGR) - the general information, check of a condition and replacement of components
System of onboard diagnostics (OBD) - a principle of functioning and codes of malfunctions
Replacement of the module of management (ЕСМ/PCM)
Information gauges and actuation mechanisms - the general information, check of serviceability of functioning, removal and installation
The Katalitichesky converter - the general information, check of a condition and replacement
+ Manual transmission
+ Coupling and transmission a line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
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System of catching of fuel evaporations (EVAP) - the general information, check of a condition and replacement of components
Check of serviceability of functioning of a control system by an adsorber purge on l models 2.4
The general information
Changes of atmospheric pressure and air temperature lead to differences of relative pressure in a fuel tank. If the tank had not tight design at superfluous pressure air being inside filled with fuel evaporations, would leave outside.
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System EVAP accumulates accumulating in a path of the power supply system having tight execution during parking fuel evaporations and provides their conclusion in an inlet path for burning in the course of normal functioning of the engine. System improvement is made continuously in process of toughening of requirements shown to environment protection. |
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As a receiver accumulating fuel evaporations the tight container, - a coal adsorber is used filled with granules of the activated coal. In the top part of an adsorber the ventilating cover, providing possibility of a purge of the container is provided by fresh air. Deleted from an adsorber at a purge fuel evaporations arrive in the inlet pipeline and burn down in the course of normal functioning of the engine. |
The special operating valve (the purge valve) provides an adsorber purge for certain time under corresponding conditions of operation of the engine. The valve has normally closed design (it is closed in the absence of a food), functions under control of PCM and at disconnection of a chain of grounding provides giving on a depression adsorber.
In the course of engine warming up, and also during some time after realisation of hot start PCM keeps a contour of grounding of the valve the closed. The adsorber purge is made only on a value achievement in temperature of a cooling liquid nearby 49°С. At engine work on single turns PCM can carry out periodic lock-out of the valve for the purpose of updatings of structure of an air-fuel mix.
With a view of safety the cover of a jellied mouth of a fuel tank is equipped by a bilateral safety valve through which alignment of internal pressure in a tank concerning the atmospheric is in case of need made.
On equipped with system of onboard diagnostics of the second generation (OBD-II) system EVAP refusals are registered in the form of codes in memory of the processor. Monitoring is carried out by means of the differential gauge of pressure built in in a fuel tank and the gauge of intensity of the purge, tracing the expense deduced of an adsorber in the engine of a gas stream. The description of principles of functioning of systems OBD and the list of codes of malfunctions are resulted more low in the given Chapter.
Check
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Full diagnostics of system EVAP is among the procedures laying out of limits of qualification of the average mechanic-fan and its performance it should be entrusted to experts of car-care centre. It is necessary to notice, that on system components additional federal guarantees extend. More often system EVAP refusals are connected with damages of a coal adsorber or connecting lines. |
1. Infringement of stability of turns of idling, decrease in efficiency of return of the engine, spontaneous остановы the last can be caused by refusal of the control valve, damage of a coal adsorber or connecting hoses of system EVAP, and also a wrong lining of the last. Check up also a condition of a cover of a jellied mouth of a fuel tank.
2. Obvious losses of fuel, no less than occurrence of a strong smell of the last during parking can be caused by leaks of gasoline pipe lines, or damage of the case of a coal adsorber, malfunction of the control valve, a detachment, or passableness infringement испарительных lines, and also a wrong lining of the last.
3. Check up a condition, a route of a lining and reliability of connection of all hoses of system EVAP. Make necessary repair or replacement. The damaged components.
4. Examine the adsorber bottom on presence of signs of development of leaks, in case of need make replacement, - track correctness of connection of hoses.
5. Check up passableness of the filter and the control valve. Air submitted under low pressure blow an adsorber, - air moves through a tube going from a fuel tank and should to leave freely through the other tubes brought to assemblage. The faulty adsorber is subject to replacement (see more low). |
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Control system of an adsorber purge
Models 1990 ÷ of 1993 of вып., except 2.0 l DOHC equipped with the engine with a turbo-supercharging (1990 ÷ 1992)
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| 1. Disconnect from the throttle case the vacuum hose marked with red strips and connect to it the manual vacuum pump.
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2. Закупорьте the open union on the throttle case. |
3. Wait cooling of a cooling liquid to temperature more low 60°С and at the engine working on single turns create on the valve depression by depth of 376 mm hg, - it should be kept reliably клапанной by assemblage. The same picture should take place on single turns and after engine warming up from above 70°С.
4. Now lift frequency of rotation of the engine to 3000 rpm and repeat check before the expiration of a 3-minute interval, - depression should not be created. At engine work on the raised turns within more than 3 minutes possibility of creation of depression should be restored in the absence of the fact of its deduction.
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If check is made at height more than 2200 m above sea level, or at temperature of soaked up air from above 50°С, depression leak will have places constantly. |
5. At negative results described above check it is necessary to make replacement of the operating valve. |
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Models 1990 ÷ of 1992 of вып., 2.0 l DOHC equipped with the engine with a turbo-supercharging
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| 1. Disconnect a hose of a purge from an inlet air line and закупорьте last.
2. Connect to a hose the manual vacuum pump.
3. Wait cooling of a cooling liquid to temperature more low 60°С and at the engine working on single turns create on the valve depression by depth of 376 mm hg, - it should be kept reliably клапанной by assemblage. At increase of turns to 3000 in a minute tightness of the valve also should not be broken.
4. Now warm up the engine to temperature of a cooling liquid from above 70°С and repeat check: on single turns depression should is reliable to be kept again by the valve, at frequency of rotation of the engine of 3000 rpm within the first 3 minutes creation possibility on the valve demanded (376 mm hg) depression should be absent, then it should be created instantly in the absence of the fact of its deduction.
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If check is made at height more than 2200 m above sea level, or at temperature of soaked up air from above 50°С, depression leak will have places constantly. |
5. At negative results described above check it is necessary to make replacement of the operating valve. |
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Models since 1994 вып.
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| 1 Connect between a blowing-off hose and a coal adsorber a flowmeter of type MB991700.
2. Include neutral transfer (РКПП), or translate the selector lever in position “Р” (АТ). Switch off all onboard consumers of the electric power and warm up the engine to normal working temperature (80 ÷ 95 °С).
3. Allow to the engine to work on single turns during 3 ÷ 4 minutes, then some times squeeze out a pedal of a foot brake, reading out measuring instrument indications. Demanded value makes 20 see/second
4. If the result of measurement appears below the stipulated value, repeat check at the vacuum hose disconnected from an adsorber, - in case of need remove the reason of blocking of the last. If the hose detachment does not lead to demanded increase of intensity of a purge, check up passableness of the union of its connection on the adsorber case, try to replace also electromagnetic and executive valves of management with a purge.
5. If intensity of a purge corresponds to face value, replace a coal adsorber. |
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The valve of management of a purge
Models 1990 ÷ of 1993 of вып., 2.0 l equipped with the engine with a turbo-supercharging
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| 1 Remove the valve of management established to the right of the battery a purge of a coal adsorber.
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2. Connect to the vacuum union on the valve the manual vacuum pump.
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3. Check up tightness клапанной assemblages: the valve should start to pass air submitted to the union of connection to an adsorber, only at creation on it depression by depth about 203 mm hg.
4. Now connect the pump to the pressure head union of the valve and create depression by depth of 399 mm hg, - the valve should remain tight.
5. The faulty valve is subject to replacement. |
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The electromagnetic valve of a purge of an adsorber of system EVAP
Models 1990 ÷ of 1993 of вып., except 2.0 l DOHC equipped with the engine with a turbo-supercharging (1990 ÷ 1992)
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| 1. Mark and disconnect from the electromagnetic valve of management of a purge two vacuum hoses.
2. Disconnect from the valve electroconducting.
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3. Connect the manual vacuum pump to the connection union marked with red strips of a vacuum hose on клапанной to assemblage. |
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4. Create on the valve depression and check up tightness of assemblage at giving on it pressure from the battery and without that: depression to be kept in the first case should not, in the second - should. |
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5. Measure resistance between plugs of a contact socket of the valve. Demanded value makes 36 ÷ 44 Ohm at 20°С. |
6. The faulty valve is subject to replacement. |
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Models 1990 ÷ of 1992 of вып., 2.0 l DOHC equipped with the engine with a turbo-supercharging
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| 1. Mark and disconnect from the electromagnetic valve of management of a purge two vacuum hoses.
2. Disconnect from the valve electroconducting.
3. Connect the manual vacuum pump to the connection union marked with red strips of a vacuum hose on клапанной to assemblage.
4. Create on the valve depression and check up tightness of assemblage at giving on it pressure from the battery and without that: depression should be kept in the first case, in the second - is not present.
5. Measure resistance between plugs of a contact socket of the valve. Demanded value makes 36 ÷ 44 Ohm at 20°С.
6. The faulty valve is subject to replacement. |
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Models since 1994 вып.
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| 1. Mark and disconnect from the electromagnetic valve of management of a purge vacuum hoses.
2. Disconnect from the valve electroconducting.
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3. Connect the manual vacuum pump to the union And on клапанной to assemblage.
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4. Create on the valve depression and check up tightness of assemblage at giving on it pressure from the battery and without that: depression should be kept in the first case, in the second - is not present.
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5. Measure resistance between plugs of a contact socket of the valve. Demanded value makes 25 ÷ 44 Ohm at 20°С. |
6. The faulty valve is subject to replacement. |
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Removal and installation of components
Coal adsorber
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| 1. Disconnect a negative wire from the battery.
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If the stereosystem established on the car is equipped by a security code before to disconnect the battery make sure that have a correct combination for audiosystem input in action! |
2. In case of need поддомкратьте the car also establish it on props. Remove the right forward wheel and локер protection of its arch.
3. Preliminary carefully having marked, disconnect from an adsorber all vacuum lines.
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4. Turn out fixing bolts/release clamps and remove assemblage of an adsorber from the car. |
5. Installation is made upside-down. |
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Electromagnetic valves
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| 1. Disconnect a negative wire from the battery.
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If the stereosystem established on the car is equipped by a security code before to disconnect the battery make sure that have a correct combination for audiosystem input in action! |
2. Carefully mark and disconnect from the electromagnetic valve of management of an adsorber purge vacuum hoses and electroconducting.
3. Remove the valve in gathering with a basic arm and take it from an impellent compartment of the car.
4. Installation is made upside-down. |
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