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6-4-informacionnye-datchiki.html
6.4. Информация сенсора
Сенсор of temperature of a более классно
Генерал description
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The сенсор of temperature of a более классно (it is shown by в arrow) is usually located near a temperature measuring инструмент, near a регулирующий фактор of pressure of fuel and represents a termistor (the resistor which resistance обмен денег according тонна temperature). Обмен денег of resistance defines силу failure on the сенсор. At low temperatures resistance of the сенсор the high. At temperature increase resistance если. Refusals в a сенсор chain в плодовом соке cases occur because of weakening of contact of a wire or its short circuit; ИФ проблемы with wires it is observed, проверяй the сенсор аса it is described below. |
Проверка
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- At сенсор проверяй, вершина of всех measure its resistance в a cold condition (usually from 2100 т. 2900 омов).
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- Further старт the ядро and тепло up it тонна нормально working temperature. Resistance should lower (usually from 270 т. 400 омов).
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ИФ restrictive access тонна the сенсора of temperature complicates connection тонна its contacts electric щупов, remove the сенсор аса it is described below, and make проверяй в capacity with the тепло water simulating operating conditions. |
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Before the beginning of this procedure wait complete cooling of the ядро. |
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Replacement
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- For removal of the сенсор выжимай a прыгай центральный защитник, disconnect the electric socket, then carefully выполняй the сенсор вне моды. ready тонна в effluence of a small amount of a более классно; for reduction of в effluence prepare the new сенсор and establish it аса soon аса possible.
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Address with the классный сенсор very carefully. Damage of this сенсор хочет affect work of всю систему of injection of fuel. |
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Before removal of the сенсор it can demanded тонна merge from a радиатор a small amount of a более классно. |
- Before инсталляция of the сенсор convinced действовала its carving чистый and put on it a small amount of a составное.
- Инсталляция is возвращаются тонны removal.
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Сенсор of concentration of oxygen
Генерал description
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Usually сенсора of oxygen арам established on автомобили with the catalytic converter. The majority of сенсора of oxygen арам located в в exhaust pipe behind a финально collector. On модель 535 the сенсор of oxygen is established в the catalytic converter. The electric socket of the сенсор for simplification of access is turned towards the нападающего panel (left side). |
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The oxygen сенсор (it is shown by в arrow) is usually located в в exhaust pipe behind a финально collector, traces concentration of oxygen в exhaust газ. |
Oxygen в exhaust газ cooperates with the сенсор of oxygen and creates the напряжение changing from 0.1 В (high concentration of oxygen, a poor смешивай) тонна 0.9 В (low concentration of the oxygen, a rich смешивай). ЭКЮ constantly traces this обмен денег of напряжение тонна define в oxygen and fuel ratio в a смешивай. ЭКЮ, operating длительность of в импульсы of opening of fuel injectors (opening назначило бы время) обмена денег the поведения соотношение / a fuel смешивай. The fuel смешивай from 14.7 партий of поведение and 1 part of fuel is в идеально смешивай for minimization of toxicity of the fulfilled газа, allowing the catalytic converter тонн work with the greatest efficiency. This соотношение 14.7 т. 1 ЭКЮ and the сенсор of oxygen try тонна поддержки всех the назначило бы время.
The сенсор of oxygen дремли develop any напряжение ИФ its temperature is lower than the нормально worker about 320 ° S.Vo vremya of this начально stage of warming up of ЭКЮ works в a моду of “an open contour” (действовал is, without информацию from the сенсор).
When the ядро gets тепло тонна нормально working temperature and / or worked within two or more minutes and ИФ the сенсор of oxygen develops constant напряжение below 0.45 В at в 1500 rpm or big turns, память of коды of refusals of ЭКЮ becomes more active.
ИФ there is a проблему with the сенсор of oxygen or its chain, ЭКЮ works в a моду of “an open contour”, действовал is it operates supply of fuel according тонна the programmed value of коды of refusals instead of информацию from the oxygen сенсор.
The correct операцию of the сенсор of oxygen depends on four conditions:
- The electric - the Low voltage developed by the сенсор, depends on high-quality, чистый contacts which it is necessary тонна проверяй every назначает время at suspicion or detection of misoperation of the сенсор.
- Intake of external поведение - the дизайн of the сенсор provides intake of поведение в в internal part of the сенсор. Every назначил бы время at removal of the сенсор convinced поведение делало каналы ары corked.
- The correct working temperature - ЭКЮ дремли react тонна сигнала of the сенсор of temperature while it хочет get тепло, approximately, тонна 320 ° by посыльного. This factor should considered at в assessment of operability of the сенсор.
- Unleaded fuel - Application of unleaded fuel is существенно тонна the correct операцию of the сенсор. convinced действовал you apply ищи fuel.
В сложении тонна the conditions given above the специально внимание should turned on сенсор сервис.
- The сенсор of oxygen is equipped with a cable with the electric socket which should disconnected from the сенсор. Damage or a cable or socket detachment adversely affects операцию of the сенсор.
- Greasing, dirt or other extraneous substances ары inadmissible on the electric socket and on the punched of the сенсор.
- Чет. apply on the сенсор клиринг solvents of any типизировал бы.
- Чет. drop the сенсор and address with it carefully.
- It is necessary тонна establish a силикон покрышку correctly действовал it did melt and the сенсор worked correctly.
Проверка
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- Тепло up the ядро and leave it тонна idle. Disconnect from the oxygen сенсор the electric socket and connect тонна target contact of the сенсор положительный щуп the вольтметры (address тонна the following table), and отрицательный щуп - тонна the case. The oxygen сенсор, being heated-up (тонна 320 ° C), develops very small сигнал of напряжение. Usually напряжение of a сигнал is в пределах from 0.1 т. 1.0 В).
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Опции of sockets of сенсора of oxygen from a cable. For procedures of проверки use the corresponding contacts of the сенсор (there ары three various four-wire sockets of сенсора of oxygen - чет. смешивай them).
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Electric sockets of the majority of сенсора of oxygen арам located в a жарься part of the ядро near the нападающего panel. Находи a big rubber покрышка with a thick cable. On early модели 535i the socket of a chain of a heater of the сенсор of oxygen is under the автомобиль. Находи a small protective покрышку. Тезис модели should have own сенсор of oxygen действовал access тонна it что analogous with other модели. About дополнительно информацию consult at the дилеров. |
- Tracing напряжение, increase, and then reduce ядро turns.
- At increase в turns напряжении should increase тонны 0.5 - 1.0 V.Pri decrease в turns напряжении should decrease тонны 0 - 0.4 Century.
- ИФ it is applied, экс-амины a heater of the сенсор of oxygen (модель with multiwire сенсор). At the included ignition disconnect the electric socket of the сенсор of oxygen and connect тонна the contacts specified в the table (look below), the вольтметры. Between contacts there should a напряжение of the battery (approximately, 12 В).
- ИФ indications wrong, проверяй the relay of a heater of the сенсор of oxygen (look Head систему of onboard electric оборудование). ИФ информацию on the relay is inaccessible, determine в exact размещении of the relay of a heater of the сенсор of oxygen by the менеджмент for the owner of the автомобиль. On the relay напряжение of the storage battery should arrive.
- ИФ the сенсор of oxygen дремли подходи at берет напрокат one of тезис проверки, replace the сенсор.
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Replacement
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Due тонны делал: если the сенсор is established действовал в a финально collector, the converter or a pipe which ары compressed when cooling, the сенсор of oxygen can appear very difficult тонна занимайся гимнастикой вне моды on the cold ядро. Instead of risking тонна damage the сенсор (ИФ you плоско тонна use it again в other collector or a pipe), старт the ядро and let's work минуту or two, then ворчал бы it. Чет. burn at производительность of the following procedure. |
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- Disconnect a отрицательный wire of the storage battery.
- Лифт the автомобиль and establish it on поддержки.
- Disconnect from the сенсор the electric socket.
- Carefully unscrew the сенсор.
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Excessive the effort can damage a carving. |
- For simplification of the subsequent removal it is necessary тонна put a high-temperature anticorrosive составное on a carving of the сенсор. The carving of the new сенсор is already covered with ищи составное but ИФ the old сенсор acts в снимай and established, put on a carving a составное.
- Establish the сенсор and hardly tighten it.
- Attach тонна the Майна cable of the ядро the electric socket of a cable of the сенсор.
- Lower the автомобиль and connect the battery.
| Типизируй of the сенсор of oxygen |
Target сигнал of the сенсор |
A heater food (12 В) |
| Нужда warmed up (сингл wire) |
черный wire () |
no |
| Warmed-up (three за water) |
contact 1 () |
contacts 3 () and 2 (-) |
| Warmed-up (four за water) |
contact 2 () |
contacts 4 () and 3 (-) |
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Сенсор of комиссионный сбор of a throttle (TPS)
Генерал description
The сенсор of комиссионный сбор of a throttle (TPS) is located on the of a shaft of a throttle в the throttle case. Tracing target напряжение of TPS, ЭКЮ can define on the основу of knowledge of в выудил бы of вращение of the valve of a throttle supply of fuel (комплект by the driver). В this систему TPS works в a bigger measure аса the switch, than аса a потенциометр. One group of contacts of the switch of the valve of a throttle is closed (connection of contacts) only idling. The second group of contacts becomes isolated at complete opening of a throttle. Between тезис positions both of group of contacts ары opened (there is no connection). Spoiled or weakened TPS can cause unstable injection of fuel and unstable turns of idling аса ЭКЮ хочет decide действовал the throttle moves.
Всей модели (except early модели 535i with automatic трансмиссию) have the incorporated switch of idling and a full throttle; the отдельный switch of idling indicates a throttle closed позицию while TPS is used for выдвижение of a full open throttle. On модели 535i with automatic трансмиссию of TPS it is connected directly тонна the control unit of automatic трансмиссию. At completely open throttle the control unit of трансмиссию sends a сигнал about в open throttle тонны the блокируй of control of Motronic.
Всей модели, except early 535i with automatic трансмиссию
Проверка
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TPS of L-Jetronic система is located under the inlet трубопровод (contacts ары shown). |
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- Disconnect from TPS the electric socket and connect тонна contacts 2 and the 18th метров ома. Проверка short circuit between contacts 2 and 18 at the closed throttle (the late систему Motronic is shown).
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- Slightly slightly open a hand a throttle. Slowly релиз a throttle делал тонну a центрального защитника remained 0.2 - 0.6 миллиметр The метр ома should шоу short circuit.
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- Проверка resistance between contacts 3 and 18 at в open throttle. There should a short circuit within 8-12 degrees from completely open ситуацию. ИФ indications wrong, adjust TPS.
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- ИФ всех indications of resistance correct and TPS is correctly adjusted, проверяй a сенсор food (5 В) and ИФ necessary see wires between the сенсор and ЭКЮ (look Head систему of onboard electric оборудование).
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Adjustment
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- ИФ adjustment дремли correspond (также 1-2) requirements, weaken TPS screws and выполняй the сенсор в the correct ситуацию. Follow procedure of проверяй of TPS given above, and, having finished adjustment, tighten screws.
- Проверка TPS once again; ИФ indications correct, attach the socket of a cable of TPS.
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Early модели 535i with automatic трансмиссию
Проверка
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- At вершина проверяй TPS short circuit. For проверяй of short circuit execute также 1-2 procedures.
- Further проверяй the switch of комиссионный сбор of idling. Disconnect the socket of a cable of the switch of комиссионный сбор of idling and connect тонна contacts 1 and the 2nd метров ома. There should a short circuit. Slightly slightly open a throttle and measure resistance. Short circuits should.
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The switch of комиссионный сбор of idling and TPS on early модели 535i with automatic трансмиссию.
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- Проверка correctness of сигнала of target напряжение of TPS at the closed throttle and the included ignition. Connect щуп the вольтметры тонна contact 3 (a черный wire) from the выпекай вечеринку of the TPS socket and проверяй напряжение concerning the case. There should 5 V.Takzhe, проверяй напряжение between contact 3 (a черный wire) and contact 1 (a brown wire). Here too there should 5 Century.
- Проверка напряжение between contact 2 (a yellow wire) and contact 1 (a brown wire) and slowly open a throttle. Напряжение should raise constantly from 0.7 В (the throttle is closed) тонна 4.8 В (the throttle is completely open).
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Adjustment
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- Вершина, measure the stabilized напряжение. At the included ignition and completely closed throttle measure напряжение between contact 3 (a черный wire) and contact 1 (a brown wire). It should make about 5 Century.
- Further, weaken screws of fastening of the сенсор and connect between contact 2 (a yellow wire) and contact 3 (a черный wire) the вольтметры. At completely open throttle rotate the switch until напряжение дремли become on 0.20 - 0.24 В less stabilized напряжение.
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For measurement of ищи little обмен денег of напряжение the цифровым образом вольтметр is required. |
- Проверка TPS once again; ИФ indications correct, attach тонна TPS the electric socket. Expediently paint or a составное for фиксацию of carvings тонна остановки TPS screws.
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Measuring инструмент of a stream of поведение
Генерал description
The measuring инструмент of a stream of поведение is located в в inlet поведение Лину. The measuring инструмент of a stream of поведение measures amount of the поведение arriving в the ядро. ЭКЮ uses this информацию for менеджмент of supply of fuel. A щедро amount of поведение means acceleration while the small amount of поведение means delay or idling. Concerning все diagnostic проверки and replacement procedures for a measuring инструмент of a stream of поведение address тонна Head the сила supply систему.
Сенсора of the момент of ignition
The ignition момент в Motronic системы copes в the electronic way and тонна adjustment is subject. At старт the сенсор of комиссионный сбор of a cranked shaft transmits a сигнал в ЭКЮ and the начально пункт of the момент of ignition is defined by it. When the ядро works, the ignition момент continuously обмена денег depending on various entrance сигнал в ЭКЮ. Turns of the ядро ары defined by the сенсор of turns. В early систему Motronic the reperny сенсор and the сенсор of turns ары established over a flywheel on a coupling case. В late систему Motronic there is a единообразно сенсор (the сенсор of импульса), established over a pulley of a cranked shaft. This сенсор works аса the сенсор of turns and аса the ситуацию сенсор. For дополнительно информацию address тонна Head ignition систему.
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Some модель ары equipped with the сенсор VMT в a нападающего part of the ядро. This сенсор belongs тонна the блокируй of сервис testing of BMW and is a part of систему of ignition of Motronic. |
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