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Honda Civic/Acura Integrasince 1994 releaseRepair and operation of the car |
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Honda Tsivik + Cars of the Honda Civic and Acura Integra brand + Maintenance instruction + Routine maintenance + Engine + Cooling system and heating + Power supply system and release + Electric equipment of the engine - Control systems of the engine Specifications System of onboard diagnostics (OBD) - the principle of functioning and codes of malfunctions Removal and PCM/ECM installation Check of serviceability of a state and replacement of the sensor of provision of a butterfly valve (TPS) Check of serviceability of a state and replacement of the sensor of absolute pressure in the pipeline (MAR) Check of serviceability of a state and replacement of the sensor of temperature of the soaked-up air (IAT) Check of serviceability of a state and replacement of the sensor of temperature of cooling liquid of the engine (eats) Check of serviceability of a state and replacement of the sensor of VMT/provision of a cranked shaft / situation of pistons in cylinders of the engine (TDC/CKP/CYP) Check of serviceability of a state and replacement of the sensor of fluctuations of a cranked shaft (CKF) Check of serviceability of a state and replacement of the detector of control of electric loadings (ELD) Check of serviceability of a state and replacement of the sensor switch of pressure in system of hydrostrengthening of a wheel (PSP) Check of serviceability of a state and replacement of the oxygen sensor (l-probe) Check of serviceability of a state and replacement of the sensor of a detonation Check of serviceability of a state and replacement of the sensor of speed of the movement of the car (VSS) System of stabilization of turns of idling - the general information, check of a state and replacement of the IAC valve Check of serviceability of a state and replacement of the thermosensitive valve of turns of fast idling (FIT) System of a perepuskaniye of the soaked-up air - the general information, check of a state and replacement of a diaphragm of the IAB valve System of the operated ventilation of a case (PCV) System of recirculation of the fulfilled gases (EGR) - the general information, check of a state and replacement of components System of catching of fuel evaporations (EVAP) - the general information, check of a state and replacement of components The catalytic converter - the general information, check of a state and replacement + gear shifting Box + Coupling and power shafts + Brake system + Suspension bracket and steering + Body + Onboard electric equipment |
Check of serviceability of a state and replacement of the oxygen sensor (l-probe) The l-probe located in a final collector of the engine traces the content of oxygen in a stream of the fulfilled gases. At contact of molecules of O2 with a sensitive element of a probe the sensor develops an amplitude signal in the range from 0.1 to 0.9 V, depending on concentration of oxygen. And, to value 0.1 B there corresponds the high maintenance of O2 (the grown poor mix), and to value 0.9 B – low (the enriched mix). ECM/PCM continuously controls the signal arriving from the oxygen sensor, in case of need giving out commands for correction of composition of air and fuel mix due to change of duration of opening of injectors of injection. The optimum ratio of components of gas mixture guaranteeing the minimum fuel consumption at the most effective functioning of the catalytic converter makes 14.7 parts of air on 1 part of fuel, – its module of management and tries to support constantly, being guided by information arriving from a l-probe. It should be noted that the oxygen sensor is capable to develop alarm tension only being heated-up up to the normal working temperature (about 320 °C). While the sensor is in cold condition of ECM/PCM works in the mode of the OPENED CONTOUR. If at heated-up up to the normal working temperature and/or the engine working within not less than two minutes the oxygen sensor develops a stable signal with an amplitude of 0.45 V (at turns not lower than 1500 in a minute), the system of self-diagnostics brings in memory of ECM/PCM the corresponding code of malfunction (see Check of serviceability of a state and replacement of the sensor of VMT/provision of a cranked shaft / situation of pistons in cylinders of the engine (TDC/CKP/CYP)). The code is brought also in case of detection of malfunction in a sensor heater chain. In case of violation of serviceability of functioning of a l-probe or its chain of ECM/PCM passes into the mode of the opened contour, ignoring information arriving from the sensor and supporting composition of air and fuel mix at some set level providing sufficient efficiency of return of the engine. Serviceability of functioning of the oxygen sensor depends on performance of set of some certain conditions:
a) Electric parameters: Stability of the amplitude signal of a low voltage developed by the sensor in big degree depends on quality of contact connections of a chain of a l-probe which should be checked first of all in case of problems; In addition to the conditions listed in the previous paragraph at service of a l-probe it is necessary to observe some special precautionary measures: a) The oxygen sensor is equipped tightly with the piece of an electrical wiring which is built in in it and equipped with the contact plug which attempts of a detachment can lead to an irreversible exit of the sensor out of operation; Check
Replacement |
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