The third country's electronic unit pump diesel engine can't be turned off?
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Peugeot 408 Engine Electronic Control Unit
If the Peugeot 408 reported that the engine electronic control unit was faulty, the first thing to do was to check if the power supply to the engine computer was normal. If the power supply was normal, the common reason was that the computer version was damaged. In this case, the computer version needed to be replaced and reprogrammed. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Will the diesel engine reverse when it is turned off?
In some cases, the engine would reverse when it was turned off. For example, if the fuel supply time is not adjusted properly, the fuel supply time is too early, and the diesel has not yet reached the compression top dead center, the fuel injection has already injected diesel into the cylinder. The combustion of the diesel will push the diesel to move in the opposite direction, thus causing the crank to rotate. When the compression ratio is abnormal, such as the combustion of diesel or engine oil is not completely formed in the combustion chamber, resulting in the reduction of the combustion chamber volume and the increase of the compression ratio, the starting of the rocking car may not be able to cross the top dead center, causing a reverse fire. If the fuel injection pressure of the fuel injection is too low, it may cause the reverse rotation of the diesel engine. If the starting operation is improper, such as the fuel shaking time before starting is too long, the accumulation of too much diesel in the cylinder will cause the reverse rotation of the diesel engine. In addition, if the silencer in the exhaust pipe is blocked, the engine maintenance is not timely for a long time, resulting in excessive carbon deposits in the exhaust pipe or increased exhaust resistance, or the timing gear is not installed correctly during maintenance, resulting in valve timing confusion, and the oil used is incorrect (such as using a thicker CC-grade No. 30 engine oil in spring and winter), it may cause the diesel engine to reverse. When parking, push the throttle to the flameout position. After the diesel engine flameout, under the inertia force of the connecting rod mechanism, the flywheels may reverse. If the throttle is pushed to the "oil supply" position at this time, it will also cause the diesel engine to reverse. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Medium and Electronic Unit
Medium referred to the carrier that could transmit media, also known as medium. In a physical system, the transmission of force and energy, the transmission of light and sound, and other processes were all carried out in the medium. The transmission of wave energy depended on the quasi-elastic collision of the basic particles in the medium. The composition, shape, density, and motion state of the medium would determine the direction and speed of the transmission of wave energy. As for the electronic unit, there was no more detailed general explanation, but there was a mention of an electronic unit called MIELE 7094593. There was no more information on its specific function and nature. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The diesel engine cannot be started after reversing and stalling.
The reason why the diesel engine could not be started after reversing and stalling may be as follows: 1. ** Oil supply related issues ** - ** Oil supply time is too early **: If the oil supply time is too early, when starting, the inertia force of the flywheels will be less than the combustion expansion pressure of the flammable mixture in the cylinder. The compressed gas will push back the cylinder before it passes the top dead center, causing the diesel engine to reverse. After reversing and extinguishing, it may not be able to start normally due to fuel supply time and other related issues. - ** incorrect fuel supply advance angle **: This will also affect the starting situation. After the reverse flameout, this incorrect fuel supply advance angle may cause the restart to fail. - ** Low Pressure Oil Circuit Problem ** - ** Blocked fuel tank vent **: If the vent is blocked, the fuel supply may not be smooth, affecting the start. During the inspection, if the fuel tank switch can be turned on and there is enough fuel, check the air vent. - ** Water or impurities at the bottom of the fuel tank **: This will interfere with the fuel supply system, resulting in abnormal fuel supply and affecting the start. - ** Oil path blockage **: The blockage of the oil path between the fuel transfer pump and the fuel injection pump and between the fuel tank and the fuel transfer pump will affect the fuel supply. It can be judged by the oil pumping test of the hand pump. If there is no suction force when pulling out the button, but it is difficult to press the button, it means that the oil line between the fuel pump and the fuel injection pump is blocked, and the fuel filter should be checked for blockage; if it is obvious that it is difficult to pull out the button, and the button will automatically return after releasing it, it means that the oil line between the fuel tank and the fuel pump is blocked, and the fuel line should be checked for blockage first; If there is no normal oil pumping resistance when pulling up and pressing the button, it means that the hand oil pump is faulty. You should first check whether the oil delivery valve of the oil pump is stuck or not sealed. You can also disassemble the oil pump to check the spring or the condition of the valve. In addition, if the environment was cold, the wax on the diesel would also cause the oil path to be blocked and affect the start. - ** Air in the oil path **: If there is air in the oil path, it will also affect the oil supply. You can release the exhaust plug on the fuel filter or fuel injection pump and pump the oil with the hand pump. If there are bubbles in the diesel flowing out of the exhaust plug, it means that air has entered. You should first check whether the fuel pipe is damaged and whether the pipe joint is loose. If there is no damage or loosening, the deflating inspection should be carried out in sections. 2. ** Oil injection related problems ** - ** Oil injection timing problem **: Check the connection device and injection timing of the oil injection pump. When starting the diesel engine, check whether the input shaft of the oil injection pump is rotating and whether the connection of the shaft is reliable. If it is normal, to check whether the fuel injection is timed, you can adjust the fuel injection timing through specific inspection methods, such as removing the high-pressure oil pipe of the first cylinder and rotating the crank shaft. If the fuel injection is not timed, it may cause the reverse flameout to fail. - ** Injector Failure **: When checking the high-pressure oil circuit, confirm that there is no high-pressure oil pipe rupture or loose joints that cause insufficient oil supply and exhaust. When starting the diesel engine, touch the oil pipes of each cylinder with your hands. If there is no fuel injection pulse or the pulse strength is very weak, it means that the fault is in the fuel injection pump; if there is fuel injection pulse, it means that the fault is not in the fuel injection pump, but in the fuel injection. 3. ** Other Questions ** - ** Special circumstances for single-cylinder engines **: If it is a single-cylinder engine, the starting hole of the swirl chamber insert is blocked, or the position of the insert is wrong when replacing the insert, it will be difficult to start or it will not start. - ** Engine temperature problem **: If the engine temperature is too low, it will also cause difficulty in starting. After reversing and stalling, it may also fail to start due to the low temperature. - ** Idling speed problem or stop valve not tightened **: If the engine cannot be started after stalling, it may be because the idling speed at that time is too low, or the stop valve at idling speed is not tightened. - ** The gear is too high, or the oil-gas splitter is blocked **: These two situations may also cause the engine to fail to start after the engine is turned off. Similar problems may also exist during the start after the engine is turned off. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Electronic scale unit price
When calculating the unit price on an electronic scale, it should be noted that the unit price is usually per kilogram. If the goods were sold in kilograms, the unit price on the electronic scale needed to be twice the price. To operate it, first turn on the electronic scale (the switch is on the back or lower right corner), press the unit price 1, and then press save. A small circle will appear in the unit price column, then press the corresponding unit price value of the product (price per kilogram), and finally put the corresponding product. The amount column will display the price of the product. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the reason for the instantaneous reversal of the diesel engine flameout video?
There may be the following reasons for the instantaneous reversal of the diesel engine when it was extinguished: 1. Premature oil supply: The premature injection of diesel into the cylinder will cause a large reaction force to the rising piston-like structure, causing the crank-connecting rod mechanism to reverse. 2. The fuel supply time was too late, resulting in poor combustion of the fuel. There was a large amount of carbon deposits in the cylinder, valve, and combustion chamber, causing the diesel engine to overheat. The body temperature was too high, and the injected fuel produced premature combustion. 3. Too much oil accumulated in the cylinder. 4. When parking, push the throttle to the flameout position. After the diesel engine flameout, under the inertia force of the connecting rod mechanism, the flywheels may reverse. If the throttle is pushed to the "oil supply" position at this time, it will cause the diesel engine to reverse. 5. The silencer in the exhaust pipe was blocked, and the engine was not maintained in time, resulting in excessive carbon deposits in the exhaust pipe or increased exhaust resistance. 6. During maintenance, the timing gear was installed incorrectly, resulting in a chaotic valve timing. 7. Using the wrong engine oil specifications, such as using CC-grade No. 30 engine oil in spring and winter, and using CC-grade No. 20 engine oil in summer and autumn. If the oil was too viscous, it would cause the resistance of the hand-cranked engine to be high, and sometimes the engine would reverse. 8. If the pressure relief gap was too small, the resistance of the shaking and turning of the cranked shaft would be large, making it difficult to start, and sometimes the engine would reverse. 9. The flame was not completely extinguished. When the fuel injection amount was adjusted to a large amount or the throttle return spring force was weak, the oil pump stopped supplying oil. When the supply was stopped, the inertia of the flywheels would continue to operate with the crank. 10. The diesel engine was overheated. If the carbon deposit in the cylinder was serious and formed many hot spots, the diesel injected into the cylinder would ignite early, and the explosive force would increase sharply, pushing the upward moving cylinder back. 11. Overload. When the diesel engine was overloaded and decelerated to the point of flameout, the operating speed of the flywheels was close to zero, and the upward movement of the pistonwas within the range of the oil supply angle. At this time, if the clutch was separated, the fuel injected into the cylinder would burn rapidly due to the diesel engine overheating, which would push the pistondownward movement that had not passed the top dead center, resulting in reverse rotation. 12. Flywheel rolling key. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The actual value of the diesel-fuel injection measuring unit is unstable.
Is the current of the Weichai engine measurement unit suitable?
For Weichai's independent measurement unit, the measurement unit current was about 1500 milliamperes and was relatively stable when the engine was idling. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Can the electronic control unit be repaired?
Electronic fuel injection control unit
The electronic fuel injection system used the electronic control unit as the control center. It used various sensors installed on the engine to measure the operating parameters of the engine, and then accurately controlled the fuel injection amount of the fuel injection according to the pre-stored control program in the computer, so that the engine could obtain the best air-fuel ratio of the flammable mixture under various working conditions. In the entire system, the Electronic Control Unit (CPU) played a key role. For the control of the fuel injection amount, the CPU will collect the engine speed signal and load signal for analysis to determine the basic fuel injection amount (fuel injection pulse width), and correct it according to the cooling liquid temperature signal and other signals to obtain the total fuel injection amount. In terms of fuel injection timing control, for an engine with multi-point sequence injection, the CPU controls the fuel injection time at the best time according to the ignition sequence of each cylinder of the engine to ensure that the gasoline injected into the cylinder is fully burned. In addition, the CPU also played a role in fuel cut-off control, which included normal deceleration fuel cut-off control (when the vehicle suddenly released the accelerator pedal, the CPU automatically cut off the fuel injection control circuit and stopped the fuel injection. When the engine speed dropped to the critical speed, the fuel supply was resumed) and overrun fuel cut-off control (when the engine reached the critical speed or the set maximum speed, the CPU cut off the control circuit of the electric fuel pump and stopped the fuel injection to prevent the vehicle from speeding). For the fuel pump control, after the ignition switch is turned on, the CPU will make the fuel pump work for 2 - 3 seconds to establish the oil pressure when the engine starts. The fuel pump will maintain normal operation during the engine starting and running process. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>