My BAIC Weiwang M20 is unstable when the air conditioner is turned on

Generally, there are two types of reasons, the first is that the air conditioning system has related faults, which may be due to the failure of the air conditioning circuit or the intermittent operation of the air conditioner; The second is that there is a problem with the engine, which is more common because the engine has too much carbon.

If the engine has problems with high and low speed, sudden stalling, and excessive minimum speed in the minimum stable speed range (300-500 rpm), it can be considered as unstable idling. At present, most vehicles rely on the compressor to drive the air conditioner in the car, and the compressor relies on the engine to work.

When the air conditioning is turned on, the engine speed increases a little. If the air conditioning circuit fails, then the relevant air conditioning information ECU is difficult to accept, unable to judge the air conditioning on state, will continue to adjust the engine speed, if the air conditioning intermittent work, will intermittently affect the engine speed.

If there is too much carbon deposition in the engine throttle, the ECU will constantly adjust the speed when the compressor is started and it enters a high-load condition.

1 Cause: Insufficient engine power.

2 Solution.

Working principle: After the engine computer receives the air conditioner switch signal, it will control the compressor electromagnetic clutch to engage so that the compressor can work, and the condenser fan will run at the same time. Since the compressor is idling before the suction, the entire air conditioning system is driven by the crankshaft pulley by driving the compressor after the suction.

Therefore, the load on the engine will be increased after the engagement, which will create resistance to the engine, but at this time, the computer will control the engine to increase by 200r per minute by controlling the idle valve. But if there is a problem with the engine power itself, there will be a shivering phenomenon.

Check the following parts: whether the throttle position sensor and throttle are dirty, and whether there is any air leakage in the intake manifold. Whether the cylinder pressure is normal, whether the ignition is good, and whether the oil pressure is normal.

3 Tools Socket Box Decoder Multimeter Spark Plug Socket Cylinder Pressure Gauge.

My BAIC Weiwang M20 is unstable when the air conditioner is turned on It is estimated that you have replaced all the accessories that can be replaced, if this is the case, use the general fuel additive additive fuel tank 3 times in a row, after running 1000 kilometers, it will be significantly improved, and then run 500 kilometers It is estimated that there is no problem of jitter cylinder misfire fault lamp.

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The reasons for the high temperature of BAIC Weiwang M20 are as follows: 1. Insufficient engine coolant; 2. The water temperature sensor or water temperature meter is faulty; 3. Downwind driving or long-term low-speed and high-load driving in high temperature season; 4. Ignition time too early or too late; 5. The blinds cannot be fully opened; 6. The mixture is too thin or too thick; 7.In addition to the reasons mentioned above, the water temperature meter is not displayed if it is broken.

What is the reason for the high temperature of BAIC Weiwang M20.

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The reasons for the high temperature of BAIC Weiwang M20 are as follows: 1. Insufficient engine coolant; 2. The water temperature sensor or water temperature meter is faulty; 3. Downwind driving or high-temperature season long-term low-speed and high-load driving; 4. Ignition time too early or too late; 5. The blinds cannot be fully opened; 6. Mixed cultivation is too thin or too thick; 7.In addition to the reasons mentioned above, the water temperature meter is not displayed if it is broken.

BAIC Xunpeng Weiwang M20 is the latest model of BAIC Group, which has certain advantages in five aspects, such as styling, safety performance, space, power and humanized configuration. BAIC Weiwang M20 was launched in 2013.

Summary. Hello, I am your car master exclusive mechanic at your service. Here's a great day.

The Year of the Tiger is auspicious. We promise to be attentive, careful and attentive to solve your car troubles. Provide you with fault solutions and repair methods for your car.

Hello friend, according to the question you provided, your engine has an idle failure due to the following two reasons. In the first case, the engine speed is too high due to the excessive opening of the throttle valve due to your throttle greeting, and you need to clean the throttle to solve your problem. After washing it first, use the computer to do a match, and reset it.

The second reason is that your near-steam system has a leakage problem. If you solve this problem, you have to use smoke and dust recording to check the side leakage of your air intake system, check whether there is any air leakage, and do a check and repair to solve your problem.

How to solve the high idle speed of BAIC Weiwang M20.

Hello, I am your car master exclusive mechanic at your service. Here's a great day. The Year of the Tiger is auspicious.

We promise to be attentive, careful and attentive to solve your car troubles. Provide you with fault solutions and repair methods for your car. Hello friend, according to the question you provided, your engine has an idle failure due to the following two reasons.

In the first case, the engine speed is too high due to the excessive opening of the throttle valve due to your throttle greeting, and you need to clean the throttle to solve your problem. After washing it first, use the computer to do a match, and reset it. The second reason is that your near-steam system has a leakage problem.

If you solve this problem, you have to use smoke and dust recording to check the side leakage of your air intake system, check whether there is any air leakage, and do a check and repair to solve your problem.

No air leakage. If there is no air leakage, you can clean the throttle, and after cleaning, you will remove it for cleaning.

1. Reasons for fuel pump and oil circuit system:

The fuel pump and oil circuit system affect the fuel pressure, if the pressure is too low, the actual fuel injection amount of the injector coil will be reduced under the same power-on time, the spray quality will be worse, and the idle mixture will become thinner; If the pressure is too high, the amount of fuel injected will be too much and the mixture will be too concentrated. The fuel system pressure is related to the technical condition of the fuel pressure regulator, fuel pump, oil pressure solenoid valve and the working condition of their circuits.

2. Reasons for the signal circuit of the idle switch:

The engine control computer (ECU) determines whether the engine is in idle condition based on the potential of the idle switch signal (IDL terminal). When the idle contact is closed and a low potential is input to the IDL terminal of the ECU, the ECU determines that the engine is in idle condition and activates the idle control program to control the engine operation. Due to improper adjustment of idle contact clearance, poor contact, damage and circuit failure, the engine ECU will not be able to correctly determine the idle working condition, resulting in idle control errors and various idle defects.

Therefore, when inspecting the rock hall, it should be taken seriously and should be ruled out first.

3. The EGR valve is opened under idle condition

Failure Analysis The EGR valve is only opened when the engine is under a small load, and the role of the EGR is that a part of the exhaust gas enters the combustion chamber, reducing the temperature in the combustion chamber and reducing NOx emissions. However, too much exhaust gas involved in combustion will affect the ignition performance of the mixture, thereby affecting the power of the engine, especially under the working conditions of engine idling, low speed and light load (at this time, the ECU controls the exhaust gas not to participate in the combustion to avoid affecting the engine performance). If the EGR valve is opened when the engine is idling, so that the exhaust gas enters the combustion chamber to participate in the combustion, the combustion becomes unstable, and there is even a fire during the dismantling.

Summary. If the moment the engine starts reaches more than 3,000, this is a normal phenomenon. If the idle speed of the engine has been more than 3000 for a long time after the engine starts, then this is a problem, in this case it may be that the throttle is stuck, or the idle motor is stuck, or the idle motor is faulty.

If it still doesn't work, then you need to replace the idle motor, and you need to check the position sensor inside the throttle to see if there is a problem.

BAIC Weiwang M20 started to idle more than 3,000 what's going on.

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If the moment the engine starts reaches more than 3,000, this is a normal phenomenon. If the idle speed of the engine has been more than 3000 for a long time after the engine starts, then this is a problem, in this case it may be that the throttle is stuck, or the idle motor is stuck, or the idle motor is faulty. If it still doesn't work, then you need to replace the idle motor, and you need to check the position sensor inside the throttle to see if there is a problem.

The throttle valve was also changed.

If this phenomenon occurs after the throttle is replaced, it is necessary to check the wiring of the throttle and the crankshaft position sensor of the engine. There is also a need to use a computer to detect the data flow of the engine, and make a specific judgment through the data flow in the engine.

Check the engine's control computer may be the engine control computer is hopeful.

If the throttle is replaced, check the wiring of this throttle, and if there is no problem, then consider the engine's computer.

This is normal, and there will definitely be a noise after this gear is hooked up.

It is the circuit that I just told you to check the throttle, and if there is no problem, you need to check the control computer of the engine.

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Summary. Dear, your BAIC Weiwang M20 idle speed low idle speed has been 1000 rpm reasons and solutions: 1. The idle switch is not closed.

The throttle position sensor can be adjusted or replaced. 2. If it is caused by the failure of the idle control valve, you can clean or replace the idle control valve, and use a special decoder to make basic settings for the idle speed. 3. If it is caused by leakage of the inlet pipe, find the leak, reseal it or replace the relevant parts.

4. The throttle is too dirty or the throttle harness plug is falsely connected.

Dear, your BAIC Weiwang M20 idle speed low idle speed has been 1000 rpm reasons and solutions: 1. Caused by the failure of the loose speed switch of the idle pants. The throttle position sensor can be adjusted or replaced.

2. If it is caused by the failure of the idle control valve, you can clean or replace the idle control valve, and use a special decoder to make basic settings for the idle speed. 3. If it is caused by leakage of the inlet pipe, find the leak, reseal it or replace the relevant parts. 4. The throttle is too dirty or pure, and the throttle harness plug is falsely connected.

Pure. Idling speed of a car: refers to a working condition. When the engine is idling, it is called idling, which means that the car is in neutral gear.

The rotational speed at which the engine is idling is known as the idle speed. If the water temperature of the engine is still relatively low, the idle speed is generally 950-1300 rpm. But after a while, the engine gets hot, and the idle speed will return to the idle speed when the car hits the first gear.

However, if laughter still doesn't work, keep it at 1000 rpm. It is necessary to consider whether there is a problem with the throttle, and the owner can deal with the three-way catalysis and spark plug problems.

Sometimes it jumps to 1500 rpm.

Your BAIC Weiwang M20 idle speed has been 1000 to 1500, this is the problem of Wang State throttle, three-way catalysis, and this messy spark plug. It is handled in the order of three sources.

Check the throttle first.