Honda Civic/Acura Integra

since 1994 of release

Repair and car operation


Honda Tsivik
+ Honda Civic and Acura Integra brand Cars
+ Maintenance instruction
+ Routine maintenance
+ Engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
- Control systems of the engine
   Specifications
   System of onboard diagnostics (OBD) - a principle of functioning and codes of malfunctions
   Removal and installation RSM/ESM
   Check of serviceability of a condition and replacement of the sensor of provision of a butterfly valve (TPS)
   Check of serviceability of a condition and replacement of the sensor of absolute pressure in the pipeline (MAR)
   Check of serviceability of a condition and replacement of the sensor of temperature of soaked-up air (IAT)
   Check of serviceability of a condition and replacement of the sensor of temperature of cooling liquid of the engine (eats)
   Check of serviceability of a condition and replacement of the sensor of VMT/provision of cranked shaft/position of pistons in cylinders of the engine (TDC/CKP/CYP)
   Check of serviceability of a condition and replacement of the sensor of fluctuations of a cranked shaft (CKF)
   Check of serviceability of a condition and replacement of the detector of control of electric loadings (ELD)
   Check of serviceability of a condition and replacement of the sensor switch of pressure in system of hydrostrengthening of a wheel (PSP)
   Check of serviceability of a condition and replacement of the oxygen sensor (l-probe)
   Check of serviceability of a condition and replacement of the sensor of a detonation
   Check of serviceability of a condition and replacement of the sensor of speed of movement of the car (VSS)
   System of stabilization of turns of idling - the general information, check of a condition and IAC valve replacement
   Check of serviceability of a condition and replacement of the thermosensitive valve of turns of fast idling (FIT)
   System of a perepuskaniye of soaked-up air - the general information, check of a condition and replacement of a diaphragm of the IAB valve
   System of operated ventilation of a case (PCV)
   System of a retsirkulyatsiya of the fulfilled gases (EGR) - 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
   The catalytic converter - the general information, check of a condition and replacement
+ gear shifting Box
+ clutch and power shafts
+ 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

General information

The system accumulates accumulating during car parking fuel evaporations and provides a conclusion them in the inlet pipeline for burning in the course of normal functioning of the engine.

The structure of any EVAP system surely includes the special adsorber filled with absorbent carbon which, actually, and collects in itself fuel evaporations. The way of a conclusion of evaporations from an adsorber can vary depending on a design of concrete system. Given will allow the reader to understand principles of functioning of EVAP system of any type rather in details below.

The described design not necessarily should correspond completely to a design of the system established on the concrete car, however the principle of functioning is the general for all models equipped with system of injection of fuel. In case of identification of any deviations, be verified with information provided on a label of VECI.

The cover of the fuel filter is equipped with a bilateral safety valve. In default systems the valve provides branch of fuel evaporations in the atmosphere.

Other dvukhkhodovy locking valve is established on a fuel tank and provides adjustment of branch of fuel evaporations in a coal adsorber depending on the differences of pressure/depression connected with change of temperature.

After passing of the double-thread valve fuel evaporations on ventilating hoses get to a coal adsorber in which accumulate during the whole time of parking.

At engine start till its warming up to a certain temperature the locking electromagnetic valve of a purge of an adsorber remains closed, allowing opening of the diafragmenny valve of a purge at the expense of increase in depth of depression in the inlet pipeline. From an adsorber fuel evaporations via the diafragmenny valve are blown in the inlet pipeline, from where arrive in combustion chambers where are burned out in the course of normal functioning of the engine.

Check

Complete check of EVAP system lies outside the limits of qualification of the average amateur mechanic. Fortunately, the EVAP system, as well as other systems of decrease in toxicity of the fulfilled gases, is protected by additional guarantee certificates for a period of 5 years/80 of 000 km of run. More often refusals of EVAP system appear are connected by damage of an adsorber or failure of vacuum hoses.

Vacuum hoses

 PERFORMANCE ORDER

1. First of all always check a condition of vacuum hoses, damage or which detachment more often and is at the bottom of system refusal (be verified with the scheme of laying of hoses provided on a label of VECI of your car). In case of need replace the damaged hoses.

Electromagnetic valve of management of a purge

 PERFORMANCE ORDER

1. The electromagnetic valve of management provides with a purge removal of the accumulated evaporations from a coal adsorber at the expense of the depression created in the inlet pipeline. The valve provides depression giving at the heated-up engine and remains closed at cold.
2. Make sure that the temperature of the engine does not exceed specified on the electromagnetic valve:
   73°С for models 1994 and 1995 of вып.
   68°С for models since 1996 вып.

3. Find a purge hose in the top part of a coal adsorber (see an accompanying illustration). For a guarantee be verified with the scheme of laying of hoses provided on a label of VECI.

4. Having found the necessary hose, disconnect it from an adsorber and connect to the vacuum gage. Start the engine on single turns – depression it should not be created.
5. Wait engine warmings up – now depression should appear.
6. At negative results of check find the electromagnetic valve of management of a purge on the inlet pipeline and disconnect from it electroconducting. Disconnect vacuum hoses and connect to one of valve unions a piece of a rubber hose.
7. By means of wires crossing points connect the valve directly to the battery. Try to blow through a hose the valve. At the connected battery the valve should be open and freely to be blown, at the disconnected – is closed (on some models the opposite scheme of functioning of the valve) is used.
8. At negative results of check replace the electromagnetic valve.

Dvukhkhodovy valve

 PERFORMANCE ORDER

1. Uncover the fuel filter.

2. Disconnect the line of fuel evaporations from a fuel tank and connect T-shaped to the vacuum pump and the vacuum gage (see an accompanying illustration).

3. Slowly and continuously lifting depth of depression, track vacuum gage indications. Depression should be stabilized instantly on value 5.1÷15.2 by mm of mercury. If the valve opens earlier, than demanded depth of depression will be reached, replace it.
4. Switch the vacuum pump to the pressure head union. Lift pressure in the line and consider the vacuum gage indication. Pressure should be stabilized in a range 10.2÷35.6 by mm of mercury. (the valve is open).
5. If the valve opens earlier, than demanded depth of depression will be reached, replace it.

Locking valve of ventilation of a coal adsorber

 PERFORMANCE ORDER

1. To define, whether your car is equipped with the locking valve of ventilation of an adsorber, look at the last from above. If on a cover there is a 2-contact electric socket, therefore the valve is provided.
2. Walk on a hose from the valve down to the three-running valve, assembly from an adsorber. Disconnect a hose from the three-running valve and connect it to the vacuum pump.
3. Remove from an adsorber the locking valve, without disconnecting from it electroconducting and the vacuum pump.
4. Include ignition (without starting the engine) and create depression in a hose. If the valve holds depression, disunite the electric socket. If the valve still remains locked, replace it.