The throttle is pressed to the end, and the speed can t go up

Why can't I go up when I press the accelerator when I overtake? The old driver told the truth and did it all wrong.

The accelerator pedal is pressed to the end, the speed can not come up, the engine is basically normal when running without load, but the acceleration is slow when running with load, the uphill is weak, the accelerator pedal is still insufficient when the accelerator pedal is pressed to the end, the speed is not high, and the maximum speed cannot be reached, all of which belong to the lack of engine power.

Cause of failure due to insufficient engine power].

1) The air filter is clogged;

2) The throttle is not properly adjusted and cannot be fully opened;

3) The fuel pressure is too low;

4) Poor injector blockage or atomization;

5) Water temperature sensor failure;

6) Air flow meter failure;

7) Improper ignition or too weak high-pressure sparks;

8) The compression pressure of the engine cylinder is too low.

Fault diagnosis and elimination of insufficient engine power].

1) Press the accelerator pedal all the way down to check if the throttle is fully open. If it cannot be fully opened, the throttle cable or pedal should be whole.

2) Check the air filter for blockages. If there is a blockage, it should be cleaned or replaced.

3) Fault self-diagnosis and check whether there is a fault. Sensors and actuators that affect dynamics include: water temperature sensors, air flow meters or intake manifold absolute pressure sensors, igniters, fuel injectors, etc. Find the cause of the failure by the faults displayed.

4) Check whether the idle switch and full load switch of the throttle position sensor are adjusted correctly. If it is incorrect, it should be readjusted according to the standard.

5) Check the ignition timing.

6) Check the water temperature sensor. at different temperatures. The resistance of the water temperature sensor should be able to change according to the specified standard value. If the standard value is not met, the water temperature sensor should be replaced.

7) Detect the air flow meter or the intake manifold absolute pressure sensor, if there is any abnormality, it should be replaced.

8) Check all spark plugs, high voltage wires, ignition coils. If there is an abnormality, it should be replaced.

9) Check the fuel pressure. If the pressure is too low, the electric gasoline pump, oil pressure regulator, gasoline filter, etc. should be further checked.

10) Disassemble the injector and check whether the fuel injection volume is normal. If the injection volume is abnormal or the fuel injection is poor, the injector should be cleaned or replaced.

11) Measure the cylinder compression pressure. If the pressure is too low, the engine should be dismantled and inspected.

The reason why the accelerator pedal is pressed to the end and the speed does not come up:

1.It is mainly caused by excessive carbon deposits in the engine, and it is necessary to clean the throttle and fuel injector, replace the spark plug, improve the ignition energy, achieve normal, enhance the power, and timely overhaul and maintenance to ensure stable, comfortable and safe driving.

2.The oil may need to be changed at the end of the term.

3.It may be that the acceleration is weak due to the poor quality of the oil, and the most likely thing is that the carbon deposits need to be cleaned.

Hello, your fault is due to lack of motivation there.

Ignition system working poorly: Check whether the ignition system, ignition coil, spark plug ignition energy is normal!

Faulty fuel injection system: check whether the fuel injection system, gasoline pump pressure is normal, whether the fuel injector nozzle is blocked, air intake sensor, fuel injection correction sensor signal is normal!

Check it, please repair it in time if there is a fault, I am very happy about your problem, I hope it can help you, I wish you a happy car! [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, this situation is that on the one hand, the oil may need to be replaced at the end of the term, on the other hand, it may be the acceleration weakness caused by the poor quality of the oil, and the most likely is that the carbon deposits need to be cleaned.

Have a nice ride!

Your hunch is correct, my car has encountered a similar situation before, step on the accelerator at the speed of not dragging the gear, and run is not strong, after the repair shop many masters and experts in the industry have obtained unanimous comments, that it is the problem of oil, now small gas stations or private gas stations in order to obtain higher profits, the oil ginseng is fake, the water content is serious, the water volatilizes with the engine temperature, one is the combustion is not sufficient, the other is that the fuel consumption increases rapidly after the water volatilization, this is the truth, Therefore, it is more reliable to try to find a relatively large gas station, which will also reduce the damage to the vehicle!

It is recommended to check: whether the air filter is too dirty and affects the air intake, whether the throttle is too dirty, and whether the oil quality is not good.

You can see if it is due to the following reasons:

1. Check the gasoline pressure, cleanliness, and replace the gasoline filter.

2. Check the ignition system, cylinder line, spark plug, etc.

3. Check the cylinder pressure and whether the engine is missing cylinders.

4. Check whether the intake and exhaust pipelines are smooth. (three-way catalytic blockage) 5. Whether the ignition time is positive, throttle position sensor, idle motor, etc.

6. Gasoline quality problems.

Velocity is the accumulation of acceleration over time, and if the acceleration is not enough, it will take a long time.

Hello, the reason for the lack of motivation.

When the oil pump is not well supplied, then there will be a problem that the accelerator pedal cannot be accelerated.

When the oil pump is not well supplied, then there will be a problem that the accelerator pedal cannot be accelerated. For this problem, the first task is to check the amount of fuel injection, and dynamically observe whether the fuel pressure is normal when the vehicle is faulty.

The second is the problem of blockage, although the gasoline filter and injector blockage in the fuel system will not change the fuel pressure, but once the filter is blocked, then the engine will be unable to speed up, and the injector blockage will affect the reduction of oil volume, affecting the speed of the engine at high speed.

Therefore, the patency of the gasoline filter can be detected to see if there is any excessive dirt and blockage, and if necessary, the gasoline filter can be replaced and the fuel pump and injector can be cleaned.

Finally, check whether it is the dirt of the fuel tank of the burning car that affects the poor oiling. When these are basically eliminated, it is still necessary to check the condition of the carbon tube, check whether the carbon tube is blocked, affect the vacuum of the car fuel tank, and the fuel pump cannot be oiled.

Precautions for stepping on the accelerator to the end and not speeding up:

The most critical thing for the air intake system is to look at its air intake, the first task is to detect the cleanliness of the air filter element, if it is very dirty here, then it will affect the air intake is not enough or the air intake resistance becomes larger, resulting in weak acceleration when stepping on the accelerator.

The second is the intake pressure sensor of the pipeline, if there is damage, then it will affect the signal data transmitted to the ECU is not accurate, then the instruction transmitted back by the ECU is also a wrong signal, of course, if the signal of the throttle is not accurate, it may also cause the fault problem.

It's not that you can't add gas, I guess what you want to express is that you don't react much when you step on the gas pedal uphill! It seems to be boring, I estimate that when you just drove uphill, you have to increase the throttle when you drive uphill, the number of revolutions should be enough to at least 2000 rpm, you can't go up halfway to see that you can't go up before increasing the throttle, and the small displacement design is a fuel-efficient design, and the response is slow, so you have to change your driving habits and understanding!! Speed up and fuel pedal in advance before going uphill, otherwise the engine will be turned off in the middle of the slope.

It is more difficult to start on a slope, and it is dangerous to follow the car behind!!

I believe that many car owners have encountered the experience of not being able to go up at the speed of the car accelerator, and that feeling seems to be unable to make it, but what is going on? Next, let's analyze the reasons why the car is unable to refuel and slow to speed up.

First, if the speed of the car does not go up at the gas pedal, there is a high probability that the clutch has slipped. Clutch slip is mainly manifested in the acceleration of the car driving, the speed can not increase with the increase of engine speed, and the power of the engine can not be completely transmitted to the driving wheel, resulting in driving weakness, especially when going uphill.

The main reason for clutch slippage is the lack of friction of the clutch friction plates; If the clutch is not in place, grab the gear or take it out of gear; long-term semi-clutch state sports car, stepping on the clutch and sliding; When the gear or disgear is not in place, the car will slam the throttle when the gear or disgear is not fully in place, resulting in abnormal loss of the clutch.

Of course, the speed of the car fuel pedal can not go up, we also have to focus on the engine, the power is the combustion of fuel, and the engine is responsible for providing fuel, and converting chemical energy into mechanical energy, so when the car is unable to refuel and speed up slowly, the engine system should also be checked as a focus.

First of all, we can do some simple checks on our own, such as whether the wrong oil is added, which is also possible, because adding low-grade gasoline may cause weak acceleration, resulting in a decrease in engine power and an increase in fuel consumption.

Then there is the engine oil system, which is not only important because it can be fully lubricated, but also reduce resonance and improve the smooth operation of the engine. If the engine oil is insufficient for a long time, the light one will have insufficient power and the fuel consumption will increase; In the heavier case, the piston strikes the door, causing mechanical damage to the associated connectors. In addition, a faulty gasoline pump and a clogged fuel filter can also cause a drop in engine power.

Then there is the intake system of the engine, the engine needs air in addition to oil, if the air filter, throttle and other components are blocked or there are problems, resulting in insufficient air intake, it will also cause the car to accelerate weakly and slowly, and there is a sense of frustration.

The ignition system is also not negligible, and if the spark plug ignition, leakage or atomization is poor, it will also affect the engine acceleration.

In addition, we can judge that there is a problem according to the symptoms that the car is also accompanied by, such as smoke from the exhaust pipe, if there is black smoke, then there is a problem with the combustion chamber, ignition system, and valve; If there is blue smoke coming out of the exhaust pipe, then it is possible that the engine oil has run to the combustion chamber, which is what we call burning the engine oil.

Many people don't think so, thinking that the car refueling is not able to speed up and slow down the small things, but if you don't pay attention to the small things, it will cause big things, so the owner must go to the professional repair shop or 4S shop for maintenance in time after the symptoms appear.

Answer: The throttle can not be lifted to speed reflects that the power of the car is abnormal, and the engine power is completed by the coordinated combination of the air intake system, the ignition system and the oil circuit system.

1. When stepping on the accelerator, the cable will drive the throttle, that is, the throttle, there is a position sensor on the throttle, and the control unit knows the opening of the throttle according to the throttle position sensor signal, and then calculates the corresponding signal voltage, and finally calculates the fuel injection amount of the vehicle according to the signal voltage. Therefore, if the throttle position sensor is too dirty or the voltage is out of balance, it will lead to the failure of the electronic throttle, and the throttle will not be able to go up at the end speed.

2. Eliminate the fault of the electronic throttle, then shift the attention to the three systems of the engine's air intake, oil circuit and ignition, the throttle position sensor signal, in fact, it is a member of the air intake system, the engine needs sufficient air to work normally, if the air intake system is leaking or blocked, then when the car fills the accelerator, there will be a drop in power, the speed can not go up, and the body shakes.

3. The oil circuit system of the engine is also important, if poor quality gasoline is added, it is likely to lead to gasoline pump burnout, three-way catalytic failure, piston failure, etc., which directly affects the engine power, and is easy to cause the engine to stall and accelerate to the vehicle speed. [smiles].

You can see if it is due to the following reasons:

1. Check the gasoline pressure, cleanliness, and replace the gasoline filter.

2. Check the ignition system, cylinder line, spark plug, etc.

3. Check the cylinder pressure and whether the engine is missing cylinders.

4. Check whether the intake and exhaust pipelines are smooth. (three-way catalytic blockage).

5. Whether the ignition time is positive, throttle position sensor, idle motor, etc.

6. Gasoline quality problems.

Extended Materials. Due to problems with the manufacturing process, or the throttle itself is stuck when released after a period of use, the return is slow, and it cannot completely return to the idle state. Generally, the pedal problems caused by the manufacturing process is not in place will involve many models.

Prevention method: When we usually go to the 4S shop or repair shop to maintain the car, or even wash the car, you can let the maintenance workers of the 4S shop help you check it, if you find that any pedal is loose, the action is astringent and other problems must be debugged or replaced in time.

The quality of the pedal mat is also related to safety issues, and the following aspects should be paid attention to when purchasing the pedal mat:

1. The purchase of pedal mats to the original factory as the first choice (poor design can be claimed according to law), if it is to consider strengthening sound insulation or other factors, the auxiliary products should be purchased suitable models.

2. To purchase a universal pedal pad, you can ask the store or warranty factory to trim the appropriate notch at the accelerator pedal, and the brake or clutch pedal can be handled together.

3. Most of the cheap pedal pads do not have an anti-slip design at the bottom, or the anti-slip design is poor.

Hello friend, there are many situations that can cause this phenomenon. For example, individual cylinders do not work, or the three-way catalytic is blocked, or the gasoline pressure is low, or the gasoline filter is seriously blocked, or the fuel injector is blocked. Either there is too much carbon in the intake, or there is too much spark plug clearance, or the cylinder pressure is too low due to a mechanical failure.

There are also fault codes in the electronic control system, electronic components, and circularity. This situation needs to be investigated step by step. I hope I can help you, if you have any questions, please feel free to contact me.

BBA Mercedes-Benz BMW Audi Maintenance wishes you a happy life, all the best, and a lot of money!