Idle air control valve перевод

Idle air control valve перевод

Новичок

Группа: Пользователь
Сообщений: 89
Регистрация: 29.7.2009
Из: Москва
Пользователь №: 3279

найти не смог, но очень хотелось бы найти как правильно перевести данные из логов?

И еще предлагаю общими услиями запонить данную таблицу. Она будет полезна у кого есть шнур и комп (IMG:http://www.subarulegacy.ru/forum/style_emoticons/default/smile.gif)

Название датчиков На русском Показания на холодную Показания на прогретом ДВС
Time,
Engine Speed (RPM),
Manifold Absolute Pressure (PSI),
Air/Fuel Learning #1 (%),
Air/Fuel Correction #1 (%),
Coolant Temperature (°C),
Rear O2 Sensor (V),
Throttle Opening Angle (%),
Mass Air Flow (g/s),
Vehicle Speed (KPH),
Atmospheric Pressure (PSI),
Knock Correction (°BTDC),
Fuel Injector #1 Pulse Width (ms),
Throttle Sensor Voltage (V),
Air Flow Sensor Voltage (V),
Pressure Differential Sensor (PSI),
Manifold Relative Pressure (PSI),
CPC Valve Duty Ratio (%),
Secondary Wastegate Duty Cycle (%),
Idle Speed Control Valve Duty Ratio (%),
Air/Fuel Sensor #1 Current (mA),
Rear O2 Heater Voltage (V),
Air/Fuel Correction #3 (%),
Air/Fuel Sensor #1 (Lambda),
Air/Fuel Sensor #1 Resistance (Ohms),
Air/Fuel Sensor #1 Heater Current (Amps),
Read Memory Signal (On/Off),
AT/MT Identification Signal (On/Off),
Power Steering Switch Signal (On/Off),
Idle Switch Signal (On/Off),
Knock Signal #1 (On/Off),
Muffler Control (On/Off),
Intake Air Solenoid (On/Off),
Exhaust Gas Negative Pressure (On/Off),
Exhaust Gas Positive Pressure (On/Off),
TCS Relief Valve Solenoid (On/Off),
Relief Valve Solenoid #2 (On/Off),
Relief Valve Solenoid #1 (On/Off),
Torque Permission Signal (On/Off),
Torque Control Signal #2 (On/Off),
Torque Control Signal #1 (On/Off)

Активный участник

Группа: пользователи
Сообщений: 3404
Регистрация: 10.3.2009
Из: Россия, Томск
Пользователь №: 1956
Я езжу на:Outback 3.0R 2004 (JDM)

Время,
Частота вращения двигателя (об / мин),
Абсолютного давления в коллекторе (PSI),
Топливо-воздушной обучение # 1 (%),
Авиа-, топливо для коррекции # 1 (%),
Температуры охлаждающей жидкости (° С),
Задняя O2 Sensor (V),
Угол открытия дроссельной заслонки (%),
Массовые Air Flow (г / с),
Скорость автомобиля (км / ч),
Атмосферное давление (PSI),
Knock Correction (BTDC °),
Fuel Injector # 1 Pulse Width (MS),
Дроссель датчик напряжения (V),
Air Flow Sensor Voltage (V),
Датчик перепада давления (PSI),
Многообразии относительное давление (PSI),
КПК Valve скважностью (%),
Среднее разгрузочного Рабочий цикл (%),
Idle Speed Control Valve скважностью (%),
Топливо-воздушной # 1 датчик тока (мА),
Задняя O2 нагреватель Напряжение (V),
Авиа-, топливо для коррекции # 3 (%),
Топливо-воздушной датчик # 1 (лямбда),
Топливо-воздушной датчик # 1 Сопротивление (Ом),
Топливо-воздушной # 1 датчик тока накала (AMPS),
Сигнал чтения памяти (On / Off),
AT / MT опознавательного сигнала (On / Off),
Гидроусилитель руля Switch Signal (On / Off),
Idle Switch Signal (On / Off),
Сигнал Knock # 1 (вкл / выкл),
Глушитель Control (On / Off),
Воздух на входе соленоида (On / Off),
Выхлопных газов Отрицательное давление (On / Off),
Выхлопных газов положительным давлением (On / Off),
TCS помощи электромагнитного клапана (On / Off),
Предохранительного клапана электромагнитного # 2 (On / Off),
Предохранительного клапана электромагнитного # 1 (вкл / выкл),
Крутящий момент разрешительного сигнала (On / Off),
Сигнал контроля крутящего момента # 2 (On / Off),
Контроля крутящего момента сигнала # 1 (On / Off)

Новичок

Группа: Пользователь
Сообщений: 89
Регистрация: 29.7.2009
Из: Москва
Пользователь №: 3279

Да, я так тоже делал.

Активный участник

Группа: пользователи
Сообщений: 3404
Регистрация: 10.3.2009
Из: Россия, Томск
Пользователь №: 1956
Я езжу на:Outback 3.0R 2004 (JDM)

Да, я так тоже делал.

Название датчиков На русском
Time Время
Atmospheric Pressure (PSI) Атмосферное давление (PSI)
Engine Speed (RPM) Частота вращения двигателя (об / мин)
Manifold Absolute Pressure (PSI) Абсолютного давления в коллекторе (PSI)
Coolant Temperature (°C) Температуры охлаждающей жидкости (° С)
Rear O2 Sensor (V) Задняя O2 Sensor (V)
Throttle Opening Angle (%) Угол открытия дроссельной заслонки (%)
Mass Air Flow (g/s) Массовые Air Flow (г/с)
Vehicle Speed (KPH) Скорость автомобиля (км/ч)
Knock Correction (°BTDC) Knock Correction (BTDC °)
Fuel Injector #1 Pulse Width (ms) Fuel Injector # 1 Pulse Width (MS)
Throttle Sensor Voltage (V) Датчик дроссельной заслонки. Напряжение (V)
Air Flow Sensor Voltage (V) Air Flow Sensor Voltage (V)
Pressure Differential Sensor (PSI) Датчик перепада давления (PSI)
Manifold Relative Pressure (PSI) Многообразии относительное давление (PSI)
CPC Valve Duty Ratio (%) КПК Valve скважностью (%)
Secondary Wastegate Duty Cycle (%) Среднее разгрузочного Рабочий цикл (%)
Idle Speed Control Valve Duty Ratio (%) Idle Speed Control Valve скважностью (%)
Rear O2 Heater Voltage (V) Задняя O2 нагреватель Напряжение (V)

Air/Fuel Learning #1 (%) Топливо-воздушная смесь. Обучение #1 (%)
Air/Fuel Correction #1 (%) Топливо-воздушная смесь. Коррекция #1 (%)
Air/Fuel Correction #3 (%) Топливо-воздушная смесь. Коррекция #3 (%)
Air/Fuel Sensor #1 Current (mA) Топливо-воздушный датчик #1 Ток (мА)
Air/Fuel Sensor #1 (Lambda) Топливо-воздушный датчик #1 (Лямбда)
Air/Fuel Sensor #1 Resistance (Ohms) Топливо-воздушный датчик #1 Сопротивление (Ом)
Air/Fuel Sensor #1 Heater Current (Amps) Топливо-воздушный датчик #1 Ток Накала (AMPS)

Читайте также:  Не работает сигнал на калине

Read Memory Signal (On/Off) Сигнал чтения памяти (On/Off)
AT/MT Identification Signal (On/Off) AT / MT опознавательного сигнала (On/Off)
Power Steering Switch Signal (On/Off) Гидроусилитель руля Switch Signal (On/Off)
Idle Switch Signal (On/Off) Idle Switch Signal (On/Off)
Knock Signal #1 (On/Off) Сигнал Knock #1 (On/Off)
Muffler Control (On/Off) Глушитель Control (On/Off)
Intake Air Solenoid (On/Off) Воздух на входе соленоида (On/Off)
Exhaust Gas Negative Pressure (On/Off) Выхлопные газы Отрицательное давление (On/Off)
Exhaust Gas Positive Pressure (On/Off) Выхлопные газы Положительное давление (On/Off)
TCS Relief Valve Solenoid (On/Off) TCS помощи электромагнитного клапана (On/Off)
Relief Valve Solenoid #1 (On/Off) Предохранительного клапана электромагнитного # 1 (вкл / выкл)
Relief Valve Solenoid #2 (On/Off) Предохранительного клапана электромагнитного # 2 (On/Off)
Torque Control Signal #1 (On/Off) Сигнал контроля крутящего момента #1 (On/Off)
Torque Control Signal #2 (On/Off) Сигнал контроля крутящего момента #2 (On/Off)
Torque Permission Signal (On/Off) Крутящий момент разрешительного сигнала (On/Off)

Чтобы люди видели что где и могли комментарии писать по конкретным пунктами.

Источник: www.subarulegacy.ru

Idle Air Control Valve

malamute!

Registered

First of all, first post. 1991 2-door DX 4 Speed 3e-e 279,000 miles original engine.

How can you tell if the IAC valve is defective? My car has a horrible time at warm idle. I have gone through the thermostat, coolant temp sensor, and replaced the radiator cap. Can’t find a vacuum leak anywhere, but when I stick my finger into the IAC vale opening prior to the throttle body, the car idles right where it should. It also takes forever to warm up, and the temperature gauge rarely, if ever, gets to the half-way point.

I’m just about to rip apart the throttle body and IAC, but first of all I want some kind of direction on how this valve works before I do this. Also how do you get the air out of cooling system on this car? Most cars have a bleed valve somewhere, but not on this car. Thanks for any help!

Tercel GTS

N/A bites

Madcat

BLARRGH.

Straight from the factory manual-

At low temp Coolant temp below 176F: When the air port is closed th RPM should drop.

After warm up: When the air port is closed, engine rpm should not drop more then 50RPM

If operation is not as specified, replace.

I have opposable thumbs I WILL prevail.

’92 Paseo — 4E-FTE, Poly engine mounts/full front bushings, Whiteline rear swaybar, 3in exhaust.:whatwhat:

Coming soon — Built 5E, ACIS int mani, Starion FMIC. :thumbsup:

Tercel GTS

N/A bites

Madcat

BLARRGH.

It has a spring loaded valve in there. I don’t know if a repair kit can be had for it but it may be at a dealership.

I have opposable thumbs I WILL prevail.

’92 Paseo — 4E-FTE, Poly engine mounts/full front bushings, Whiteline rear swaybar, 3in exhaust.:whatwhat:

Coming soon — Built 5E, ACIS int mani, Starion FMIC. :thumbsup:

malamute!

Registered

It has a spring loaded valve in there. I don’t know if a repair kit can be had for it but it may be at a dealership.

Thanks for the help. This is the only car that I own that I don’t have the factory manual on. But it’s so darned reliable that I haven’t needed it yet.

And I’ll try filling the coolant by removing the top hose. It makes sense, but my american and british cars can never be that simple.

I’ll rip everything apart tonight and see what shakes out.

Tercel GTS

N/A bites

malamute!

Registered

I found out about the filling trick by accident when swapping an engine in a camry once.

Oh that’s always the best way. :headbang:

Took apart the throttle body removed the IAC and inspected it. It’ just a thermostat with a calibrated air opening. Threw it in boiling water and it shut, so it appears that I had a air bubble that prevented the flow of coolant through the passage keeping it open all the time. I’ll make sure there are no blockages leading up to the IAC. Then put everything back together and use your filling procedure.

I might see if I can get a T fitting somewhere so I can bleed the air out before the IAC.

Thanks again for the help!

malamute!

Registered

Every thing is back together, and it does the same stuff. Except it heats up much faster. In hooking everything back up I unhooked the MAP sensor vacuum line and it idled like a champ. Is the sensor bad or do I have a vacuum leak somewhere? I don’t have a vacuum pump to test it. Thanks again!

Читайте также:  Снятие переднего бампера Форд фокус 3

malamute!

Registered

Problem was a blocked coolant return hose from the IAC. The blockage was in the metal return line that meets the hose from the heater core. Used spray straw from my FI cleaner can and now it flows normally. Hopefully the gas mileage gets much better from here on out. I’ll change the plugs from running so rich.

I found the following and it helped me out.

From Motor, January 2000 by Dan Marinucci

Surging Idle
You may encounter a Toyota engine that surges rhythmically up and down between idle speed and about 1800 rpm. The root cause of this problem, which occurs on engines equipped with a coolant-heated fast-idle valve, very often is a low coolant level due to a leak or careless cooling,system service.

Experience shows that this problem is most likely to occur on 1987-91 Corollas, MR2s and FX16s N,,dth the 4AGE engine; 1988-93 Corollas and Celicas with the 4A-FE engine; 1988-94 trucks and 4Runners with the 3N7-1,-E engine; and 1990-94 Tercels mid Paseos xs,th the:3E-E and 5E-FE powerplants.

First of all, the fast-idle valves on these engines, which are mounted on the throttle housing, work in the traditional way. When the engine is cold, the valve opens, bypassing enough air around the throttle blade to establish fast idle. As the engine warms up, coolant heats the valve, gradually closing off this controlled air leA and bringing the engine down to curb idle speed. When these valves fail, they usually stick fully closed (no fast idle) or fully open (high, surging idle speed).

Note that when the fast-idle valve fails to close on a warmed-up engine, the PCM senses a combination of relatively high rpm and a closed-throttle signal at the same time. If the computer detects these two conditions at Operating temperature, it concludes that the engine is decelerating, and begins shutting off injectors-commonly called fuel cut-to reduce decel hydrocarbons (HCs). The fuel cut command causes the engine to surge up and down rhythmically.

The easiest way to diagnose this problem is to temporarily remove the closed-throttle signal by opening the IDL contacts inside the TPS/throttle switch assembly. You can do this by opening the throttle slightly or by pulling the harness connector off the TPS/throttle switch. If this stops the surging idle speed, check for low coolant and cooling system leaks first. Maybe someone else serviced the cooling system carelessly and all the system needs is a careful bleeding.

If the fast idle valve still seems to be hanging open, check coolant circulation. Both the inlet and outlet hoses on the valve should feel about the same— hot. When the fast-idle valve is bolted to the throttle housing on a Toyota equipped with a MAP sensor, testing for a stuck-open valve is easy: just remove the intake tube, start the engine and locate the air inlet hole for the fast— idle valve inside the throttle housing. If you feel suction at this inlet hole after the engine warms up, it proves that the fast-idle valve is stuck open.

When the fast-idle valve is mounted on the throttle housing of an engine equipped with an airflow sensor, you can’t use the test just described because the engine won’t run with the air duct disconnected. Instead, wipe off the inlet hole inside the throttle housing with a solvent that dries quickly and leaves no residue. Then cover the inlet hole with a piece of duct tape, reinstall the intake air tube and start the engine. If the engine idles normally with the duct tape in place, that’s proof positive that the fast-idle valve is stuck open.

Источник: www.toyotanation.com

Measuring an idle air control valve

Actuator information

Type: Air bypass control valve
Power supply: 12 V from system relay
Signal type: Varying in duty cycle
Signal level: 0 V to 12 V

Workings of an idle air control valve

To control the idle speed of an engine, an idle air control valve mechanism can be used. It controls the amount of air that bypasses the throttle valve. This mechanism is commonly used on vehicles with fuel-injection which have no throttle valve controller motor, like e.g. a throttle valve control DC motor or throttle valve position stepper motor.

Two different idle air control valves are found, with a single solenoid or with double solenoids, respectively having a 2-pin connection or a 3-pin connection. Both air control valves are mechanically similar in construction. The double solenoid valve uses one solenoid for opening and one solenoid for closing the valve. The single solenoid valve has a spring to pull back the valve in an initial position, usually closed, and the solenoid opens the valve against the spring pressure. Both idle air control valves have a power supply connected to one side of the solenoid(s) and the other side connected to the ECU. When the ECU needs to change the position of the valve it activates the solenoid by switching the solenoid to ground with a duty cycle signal, creating a magnetic field that pulls the valve to the new position. The duty cycle value affects the position of the valve and therefor the amount of air bypassing the throttle valve.

Читайте также:  Какая рулевая рейка лучше на калину

In this measurement, the used idle air control valve has 2 solenoids. The duty cycle frequency of an idle air control valve solenoid is about 100 Hz, other motor management systems can have different frequencies. The duty cycle signal at idle is usually 40-45% for the opening solenoid and the opposite for the closing solenoid, so 60-55%. In case of a single solenoid idle air control valve only the opening duty cycle applies.

Connecting the lab scope

Correct functioning of the idle air control valve can be checked by measuring the following signal voltages, see figure 1:

Channel Probe Voltage Range
1 Signal voltage opening solenoid 20 V
Ground at battery
2 Signal voltage closing solenoid 20 V
Ground at battery
3 Power supply at idle air control valve 20 V
Ground at battery

The lab scope is connected to the idle air control valve via a Measure lead TP-C1812B and Back Probe TP-BP85 and is set to recorder mode.

In recorder mode a streaming measurement is performed, continuously displaying the signals live on screen. Because the measured signals vary slowly, the Automotive Test Scope ATS5004D is set to a slow measuring speed.

Measuring

Figure 3 shows a waveform of an idle air control valve of a car under the following conditions: key on, starting engine, idling engine, key off. This signal can be downloaded and used to correctly set up the lab scope or as reference signal.

Figure 3: Lab scope measurement of a idle air control valve

Channel 1 (red) shows the opening solenoid signal voltage, channel 2 (yellow) the closing solenoid signal voltage and channel 3 (green) shows the power supply voltage. The purple signal shows a calculated duty cycle signal from the opening solenoid, channel 1, and the meter shows the current duty cycle of channel 1. At the beginning of the measurement the key is turned on and the power supply voltage of the idle air control valve reaches 12 V. The duty cycle reaches 100% which means the bypass valve is opened completely, the ECU uses this to reset the position of the idle control valve. Subsequently the ECU sets the duty cycle signal to a setting that matches the current engine state. When the engine is started, the power supply voltage drops because of the engine starting. The ECU increases the duty cycle to allow the intake of air for the cold start. With no acceleration, the ECU adjusts the duty cycle to stabilize the engine speed to the correct idle speed. When the key is switched off, the power supply and the control signals are switched off.

Diagnosis

Signal values may differ on different types of engine control units and idle air control valves. Consult ATIS for information on specific engine control units and idle air control valves.

The following signal deviations can indicate a problem:

  • No signal:
    Cause: back probes have no connection (perform a connection test), no power supply to idle air control valve, idle air control valve defective, ECU defective
  • Signal voltage too low:
    Cause: back probes have a poor connection (perform a connection test), poor power supply to idle air control valve, poor or no ground for the ECU, resistance in wiring to ECU
  • Noisy signal:
    Cause: wires of power supply or signal damaged, poor connection in connector terminals, defective idle air control valve
  • Signal shows an offset in relation to the example signal:
    Cause: scope is not set to DC coupling: , poor power supply to idle air control valve, poor or no ground for the ECU, resistance in wiring to ECU

Источник: www.tiepie-automotive.com