Is the Wuling Rongguang intake air temperature sensor circuit broken for a short circuit to the powe

The inlet air temperature sensor is broken, the starting is difficult, the idle speed is unstable, and the exhaust emission exceeds the standard; Unable to accurately transmit signals to the ECU. Injection cannot be accurately controlled. It will lead to an increase in the fuel consumption of the car.

The inlet air temperature sensor is a negative temperature coefficient thermistor.

The inlet air temperature sensor is a negative temperature coefficient thermistor, when the temperature increases, the resistance value decreases, when the temperature decreases, the resistance value increases, with the change of resistance in the circuit, resulting in a change in voltage, resulting in different voltage signals to complete the automatic operation of the control system. In the case of a cold car, the signal of the intake air temperature sensor is basically the same as that of the engine water temperature sensor, and when the car is warm, its signal voltage is about 2 to 3 times that of the water temperature sensor.

Fault analysis: the inlet air temperature sensor has poor contact with the iron wire, and the data flow will show abnormal low temperature, and the low temperature air density is high, which will increase the pulse width of the fuel injection, resulting in excessive concentration of mixed steam. The sensor is short-circuited, and the data stream will show abnormally high temperatures, and the high temperature air density will be low, which will reduce the pulse width of the fuel injection, resulting in an over-thin mixture.

The higher the temperature of the inlet air temperature sensor, the more concentrated the mixed steam, and the sensor is broken or the iron is poor, which will cause the mixed steam to be too thin, resulting in difficulty in starting.

Resistance detection: When detecting a single piece, the ignition switch is placed in the OFF position, unplug the inlet air temperature sensor wire connector, and remove the sensor, heat the intake air temperature sensor with an electric heating blower, infrared lamp or hot water, measure the resistance value between the two terminals at different temperatures with a multimeter ohm, compare the measured resistance value with the standard value, if it does not match the standard value, the inlet air temperature sensor should be replaced.

The normal signal voltage should be about volts when the ignition is turned onThe higher the water temperature after landing, the lower the signal voltage, because the sensor is a negative coefficient temperature resistance, which is a descending signal sensor!

For example, the engine below 86 degrees will be sprayed with 10% more oil than the normal temperature, and the purpose of the collapse is to allow the engine to heat up quickly to reduce the low temperature wear of the engine. After the temperature rises above 86 degrees, the engine should be sprayed with less oil, and the temperature should be regenerated more slowly.

So its role is important.

If he has a problem and provides the wrong engine control unit, for example, when the car is hot, the engine is provided with a low temperature or not, whether your car is sprayed with more Zen oil, so it will be a bit of waste oil. However, these two kinds of water temperature sensors work under different voltage conditions, the sensor used for the water temperature meter is 12, and the sensor used for the engine control unit is 5, so they are not interchangeable.

Hello, it depends on which model. There are many forms of water temperature sensors. Most thermistors with negative temperature coefficients are used.

Summary. Hello.

Hello. This kind of problem indicates two situations, one is that there is a problem with the line connection, there is a short mess and the road phenomenon, and the other is that there is a problem with the sensor itself. If the line is short-circuited, the temperature signal will definitely be inaccurate, and the old escort will cause an increase in fuel consumption.

The sensor was changed.

It should be caused by the wire end wiring being reversed, check whether it is positive or negative.

If the resistance is too small, should it be a wire-end problem?

Good. Yes, if the resistance is small enough to be considered 0, it is a short circuit; If the resistance value is not small enough to be considered 0, but the current is already very large, it is called overload.

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Summary. Dear, hello, I am happy to serve you, Wuling Rongguang reported that the upstream sensor reported that the voltage is too low for the following reasons: 1. Check whether the engine is obviously overheated, if so, find out the reason first.

There are many related causes of engine overheating, note the analysis); 2. Check whether the engine detonation is caused by the failure of the ignition system; If the ignition advance angle is too large, the mixture will burn too fast, resulting in engine knock combustion. The reasons for the excessive ignition advance angle are as follows: the crankshaft position sensor is installed in the wrong position (or loose), the timing belt is installed in the wrong tooth, the operation program of the power control module is faulty, the air intake detected by the air flow sensor is too small, and the detonation sensor is slow to respond.

Dear, hello, I am happy to serve you, Wuling Rongguang reported that the upstream sensor reported that the voltage is too low for the following reasons: 1. Check whether the engine is obviously overheated, if so, find out the reason first. There are many related causes of engine overheating, note the analysis); 2. Check whether the engine detonation is caused by the failure of the ignition system; If the ignition advance angle is too large, the mixture will burn too fast, resulting in engine knock combustion.

The reasons for the excessive ignition advance angle of Shencheng are as follows: the crankshaft position sensor is installed in the wrong position (or loose), the timing belt is installed in the wrong tooth, the operation program of the power control module is faulty, the air intake detected by the air flow sensor is too small, and the detonation sensor is slow to respond.

Extended information: Wuling Rongguang: It is considered high-grade in bread, if the goods are not heavy, in fact, Hongguang has more face.

Wuling's car is durable, but the bearing behind the core of the Liyu digger Qingmu is fragile, and the closed-resistant engine is easy to overheat, and the others are okay, the standard glory is around 50500, due to regional fluctuations. The difference between Wuling Hongguang and SAIC-GM-Wuling's previous products is that this car will be positioned as a compact commercial vehicle.

Report that the voltage of the upstream itch crack sensor is too low, and then the throttle cannot be added. I replaced the itch sensor with a sub-factory of the Regret Wheel. Genji still can't add oil. I don't know how to get it, the fuel injector is normal. Ignition is normal.

Pro, check whether the engine detonation is caused by the failure of the ignition system; If the ignition is too large, the combustion rate of the mixture will be too fast, which will lead to the combustion of the engine.

Will there be a problem with the ignition coil, dear, yes, focus on checking the ignition system.

Wuling Rongguang ( Check price |Detailed explanation of the model) The throttle position sensor key roll is damaged, and there will be poor contact of idle contact, no idle signal, no idle or unstable idle speed of the engine, poor contact of no round residual load contact, and no full-load signal input, which will lead to no high speed of the engine and difficulty in acceleration. It is recommended to go to the 4S store in time to check the specific reason.

The throttle position sensor, also known as the throttle opening sensor or throttle switch, is a device used to detect the state of the engine. Its main function is to detect whether the engine is in idle or load condition, acceleration or deceleration condition. It is essentially a variable resistor and several switches that are mounted on the throttle body.

Wuling Rongguang automobile throttle position sensor is a friction part, but also a wearing part. There are two problems with damage to the Wuling Rongguang throttle position sensor:

1. It leads to the instability of the car idling, because the sensor detects the real-time condition of the engine through two contacts, and once there is a problem, it will lead to very unstable idling.

2. 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.

Photo by Chen Fang1) @2019

Summary. Wuling Rongguang downstream oxygen sensor heater 1 ground short circuit or line short circuit is the fault of the exhaust ternary sensor circuit. It is a fault of the sensor circuit of the exhaust ternary.

This is the exhaust three-way catalytic sensor circuit failure, or this sensor is directly damaged, you check the circuit first, the circuit is not problematic, that is, the sensor is damaged, you can replace it directly. Can.

Wuling Rongguang downstream oxygen sensor heater 1 is connected to which balance rough short circuit or line short circuit is the fault of the exhaust ternary sensor circuit. Li Zhen is faulty in the sensor circuit of the exhaust ternary block. This is the exhaust three-way catalytic sensor circuit failure, or this sensor is directly damaged, you check the circuit first, the circuit is not problematic, that is, the sensor is damaged, you can replace it directly.

Can. Wuling Rongguang downstream oxygen sensor heater 1 is connected to which balance rough short circuit or line short circuit is the fault of the exhaust ternary sensor circuit. Li Zhen is faulty in the sensor circuit of the exhaust ternary block. This is the exhaust three-way catalytic sensor circuit failure, or this sensor is directly damaged, you check the circuit first, the circuit is not problematic, that is, the sensor is damaged, you can replace it directly. Can.

If the throttle position sensor cable of Wuling Rongguang is connected to the wrong cable, it may cause the engine to not work properly or have a fault code. To solve this problem, you can troubleshoot and adjust the following steps:1

First, determine which wires are connected incorrectly, check the color and position of the sensor wires, and follow the correct wiring method to make adjustments. 2.If you are not sure which wires are connected incorrectly, it is recommended to check your vehicle's circuit diagram or consult a professional technician for inspection.

3.If you have already determined that the wire is connected incorrectly, you can try resetting the wire to the correct interface. It is important to note that you do not forcibly pull the line to avoid damaging the circuit or components.

4.After the wiring is completed, the vehicle is inspected to ensure that the engine is running normally and there is no abnormality. If you are not familiar with the working principle and repair method of the car circuit, it is recommended to seek the help of a professional technician to troubleshoot and repair.