-
Hello, yes. Here's how:
1) Loosen the two fixing screws of the throttle position sensor.
2) Insert a gauge with a thickness between the throttle limit screw and the limit lever, and measure the conduction of the idle switch with a multimeter at the same time.
3) Turn the throttle position sensor counterclockwise to disconnect the idle switch contact, and then slowly turn the throttle position sensor in a clockwise direction until the idle switch is closed.
4) Tighten the two set screws of the throttle position sensor.
5) Insert the throttle limit screw and the limit lever with a thickness gauge of 0, 30mm and respectively, and measure the conduction of the idle switch at the same time. When the thickness gauge is, the idle switch should be turned on; When the gauge is, the idle switch should be disconnected. Otherwise, the throttle position sensor should be readjusted. Hope.
-
Hello! It can be matched, with the vehicle diagnostic computer, but the adjustment is not possible, because he is only a motor, he only accepts the signal of the accelerator pedal sensor for control, controls the opening of the flap of the throttle, and adjusts the air intake of the engine, but the throttle can be adjusted, and after each cleaning of the throttle, the throttle needs to be matched, because it has a certain memory function!
Hope it helps!
-
The steps to adjust are like this:
1. First of all, we need to find the signal line of the throttle position sensor to see if the voltage is normal (the ignition switch should be between to) if not, we should adjust the throttle position sensor.
2. Take a suitable wrench to loosen the screws, then the throttle position sensor can be shaken, this is while measuring with a multimeter, while shaking the throttle position sensor until the signal voltage is within the specified range, one hand presses the throttle position sensor, and the other hand holds the wrench to fix the screws tightly.
3. After adjustment, in order to ensure safety, one side should be measured again. Note that when adjusting the throttle position sensor, you cannot move the throttle cable, otherwise there will be inaccurate adjustment.
-
Method: from.
Copy the engine, operate the throttle valve by hand, maintain the idle speed of the engine, release the two fixing screws on the sensor, and turn it counterclockwise.
The solar term DAO door position sensor, at the same time with a multimeter detection, first disconnect the middle and upper binding posts, and then slowly rotate the sensor in a clockwise direction to make the middle and upper binding posts conductive: finally fix the two screws on the sensor. If the adjustment does not meet the requirements, it should be replaced.
-
01 Throttle position sensor has three types: on/off type, sliding resistance type and comprehensive type, and the maintenance methods are different for different types.
02For the switch type, the conduction of the idle speed and full-load switch can be measured with a multimeter on the sensor socket.
When the throttle valve is fully closed, the idle switch is on, and when the throttle is fully open or close to full open, the full load switch should be turned on, and it is normal if neither is conductive in other cases.
03 For the sliding resistance type, its resistance will increase with the increase of the throttle opening, and the maximum resistance value should be detected to see if it meets the requirements.
04 There is also a comprehensive type, which is also detected by a universal meter, which adds an idle switch on the basis of the sliding type.
Normally, the idle contact closes and outputs a signal at idle, while in other cases, the signal voltage increases with the throttle opening.
-
Throttle position sensor is the most important sensor in automotive electronic control system, which is mainly used in engine electronic fuel injection system and electronically controlled automatic transmission system.
The throttle position sensor is installed at one end of the throttle shaft on the throttle body, detects or monitors the size of the throttle opening and the speed of change, and converts the position signal into an electrical signal and inputs it into the electronic control unit. It is used to determine the various operating conditions of the engine, so as to control different injection amounts and ignition timing. In cars equipped with electronically controlled automatic transmissions, the throttle position sensor signal is the primary signal when the transmission shifts and the torque converter locks.
There are two types of throttle position sensors that are widely used today, linear throttle position sensors and Hall element throttle position sensors.
The linear throttle position sensor informs the electronic control module (ECM) of the precise throttle opening.
Most modern management systems use this sensor, and it is mounted on the throttle butterfly plate drive shaft. It is a 3-wire device with a 5-volt power cord, a ground wire, and a variable signal output line located at the middle pin. This signal output is critical to the car's performance, and any "blind spots" in the sliding area of the carbon track inside can lead to "stagnation" and "slow response".
This discontinuity is visible through the oscilloscope waveform, and the operator can flag any fault areas indicated by the output voltage within its operating range.
A good throttle potentiometer should show that the voltage is small in the throttle closed position, gradually rises when the throttle is opened, and returns to its initial value when the throttle is closed. Although the voltage of most throttle position sensors is manufacturer-defined, most are not adjustable.
Here's how to connect and set up your oscilloscope.
Connect a BNC to banana head cable to the oscilloscope channel 1, the red banana head is connected to the sensor signal output terminal with a felting needle, and the black banana head is connected to an alligator clip with an iron to ground. The oscilloscope channel attenuation ratio is set to 1x, the vertical gear is set to 500mv, the time base can be set to 1s, and the low-pass filter can be turned on to prevent glitch interference, and some oscilloscopes also support one-key setting.
Turn on the ignition, the engine is not running, and slowly allow the throttle to move from the closed position to the fully open position and back to the throttle closed position. Repeat this process slowly a few times.
Some vehicles have two throttle position sensors. One for engine control and the other for transmission control. The signal from the engine throttle position sensor corresponds to the operation of the transmission's throttle position sensor.
The signals of these two throttle position sensors are reversed and check each other, and we call this design pattern "redundant" design.
-
Throttle detection method: whether you have an electronic throttle or a direct-acting throttle, a few wires, you can use a decoder to read the fault code or a multimeter to detect whether the voltage signal is normal. Direct-acting throttle, 7 wires, unplug the sensor plug, the ignition switch to the ON gear, the multimeter hits the buzzer gear, the watch pen is connected to the No. 3 and No. 7 feet, at this time the multimeter will sound, push the throttle flap will not sound, you can judge that the idle signal line is good.
The multimeter hits the 20V gear, the meter pen is connected to 1 and 2 pins, and the multimeter will display a voltage close to 12V, which can be judged to be good for the idle motor. When the multimeter hits the 20V gear and the meter pen is connected to 4 and 7, it will display a voltage of about 5V. The multimeter hits the 20V meter pen and can be, and the starting engine will show a change between 0 and 5V
-
When the linear output throttle position sensor detects, turn off the ignition switch, unplug the sensor plug, measure the position of the potentiometer with the resistance gear of the multimeter, let the throttle opening gradually increase during the detection, and connect the multimeter between the movable contact plug and the electrogenous plug, and the resistance value should be steadily reduced with the increase of the throttle opening.
-
Detection of switching output throttle position sensors:
1.Inspection and adjustment of the switching output type throttle position sensor.
Check the continuity between the terminals on the vehicle.
Put the ignition switch in the "off" position, unplug the throttle position sensor connector, and insert a thickness gauge of appropriate thickness between the throttle limit screw and the limit lever; Use a multimeter file to measure the conduction of idle and full-load contacts on the throttle position sensor connector.
When the throttle is fully closed, the idle contact IDL should be turned on; When the throttle is fully open or close to full open, the full-load contact PSW should be turned on; At other openings, both contacts should not be on. Otherwise, the throttle position sensor should be adjusted or replaced.
2.Detection of a linear variable resistor output throttle position sensor.
1) Structure and circuitry.
A linear variable resistance throttle position sensor is a linear potentiometer with sliding contacts driven by the throttle shaft. The resistance of the potentiometer is also different at different throttle openings, which translates the throttle opening into a voltage signal to the ECU.
Through the throttle position sensor, the ECU can obtain a continuously changing voltage signal representing all opening angles of the throttle from full closure to full opening, as well as the rate of change of the throttle opening, so as to more accurately determine the operating conditions of the engine. Generally, in this kind of throttle position sensor, there is also an idle contact IDL to determine the idle condition of the engine.
2) Inspection and adjustment of linear variable resistance type throttle position sensor.
The ignition switch for the conductivity detection of the idle contact is placed in the "off" position, the wire connector of the throttle position sensor is unplugged, and the conduction of the idle contact IDL is measured on the throttle position sensor connector with a multimeter.
When the throttle is fully closed, the IDL-E2 terminals should be turned on (resistance is 0); When the throttle valve is opened, the IDL-E2 terminals should not be on (resistance is ), otherwise the throttle position sensor should be replaced.
Measure the resistance of a linear potentiometer.
The ignition switch is placed in the off position, the wire connector of the throttle position sensor is unplugged, and the resistance of the linear potentiometer is measured with the speed of the multimeter, which should increase linearly with the increase of the throttle opening.
-
The main symptoms of throttle damage in automobiles are engine shake and unstable lifting speed, and the symptoms described by the subject are throttle damage. Because throttles are consumable parts, they need to be replaced frequently. As long as the above situation occurs, after eliminating other possible faults, it is a throttle sensor failure, and it must be replaced in time.
Extended Information: Replacing the Throttle:
To replace it yourself, first unplug the circuit plug on the throttle position sensor, use a short-handled cross cone to tighten the two screws of the sensor, take the old sensor, install the new sensor and tighten the two fixing screws, and finally plug the circuit plug in. A road test is carried out after starting the vehicle. It turned out that the symptoms disappeared completely.
Rotate the central axis of the old sensor by hand and stick it to your ear to listen carefully, there is a small scattered friction sound inside the initial section of the uniform rotation process, indicating that there is wear and tear on the annular resistance film surface, resulting in poor contact between the contact and the resistance film at a certain resistance film position, and the value of a certain opening resistance of the throttle valve transmitted to the computer is zero, and the computer greatly reduces the injection pulse width command, so there is a pause and break the engine power output due to the low amount of fuel injection when stepping on the accelerator in this initial stage, and the vehicle has a frustration phenomenon.
-
There are two problems with a broken throttle position sensor:
The first is to cause the car to idle unstable, because the sensor is through two contacts, to detect the real-time condition of the engine, once there is a problem, it will lead to very unstable idling.
The second is that you can't start the car, and even if it does, it will often turn off.
If you often encounter these two situations, it means that the throttle position sensor is broken, and the owner needs to replace the sensor in time to avoid other unnecessary effects on his car.
As a kind of automotive position sensor, the throttle position sensor not only plays a very important role in the automotive industry, but also plays an important role in other industries, so we must pay attention to the inspection of the throttle position sensor in the process of using the throttle position sensor, so what are the reasons for the failure of the throttle position sensor? The following experts from China Sensor Trading Network will introduce to you the reasons why the throttle position sensor may fail.
The throttle position sensor is a friction part and a wearing part, and the following faults can occur when it itself or the circuit is defective
1) The engine is easy to stall or difficult to start;
2) Unstable idling, high or low;
3) The vehicle starts and the engine accelerates poorly;
4) Traveling car. The main causes of these failures are as follows.
1) The joints are corroded, the contact is poor, the voltage is low or not on, which makes the engine easy to stall or difficult to start. 2) The initial position is inaccurate, and the output voltage is high or low, resulting in unstable, high or low idle speed. When the initial voltage is too high, the IDL is off, which stops the IAC and causes the idle speed to be unstable.
The OFF signal output without IDL for starting acceleration loses the ability of "asynchronous injection", which makes the starting acceleration performance of the vehicle deteriorate. On the contrary, when the initial voltage is too low, the IDL will continue to be on for too long, and the oil cut-off function will cause the car.
3) The coating fails, the output voltage is inaccurate due to the change of resistance, and the vehicle starts to break through and accelerates poorly.
4) Too much carbon deposits at the throttle valve and the closure is not tight, which affects the output voltage value and flow value, resulting in inaccurate air-fuel ratio and unstable idle speed.
If the throttle position sensor fails, it must be dealt with in time.
A few people upstairs said that the Fox costs fuel, and I, as a Fox owner, are here to clarify that the fuel consumption of manual Focus commuting in big cities is generally 8, and the high-speed is 6-7, and the high-speed air conditioner is still full of power to run 150. The so-called high fuel consumption is just AT, AT gearbox can not be compared with the same kind of car now, it is indeed a drag, my car has been driving for more than 1 year without a small problem, not long ago I was too anxious to park outside, hit the wall head-on, the brick wall was knocked off a large piece, and the car was not damaged at all. The steel plate of the whole vehicle is significantly thicker than all Japanese and Korean cars, and it is also thicker than that of Volkswagen cars. >>>More
Control the panel unloading and planting online assistant.
Hello, about 5% off the original car price, the valuation of second-hand cars, the need for car age, mileage, accident and other aspects of the comprehensive car condition consideration, only with complete information, in order to correctly value the motor vehicle, otherwise the information is not complete, the deviation of the valuation will be very large, it is recommended to go to the second-hand car market to ask professionals to see. If my answer was helpful to you, please set it to and thank you for your help!
Junjie is comfortable.
However, it will take a while to pick up the car. >>>More
From the point of view of value for money, Sega, Fox, Cruze. >>>More