What Are the Reasons for Diesel Electronic Injection Failing to Start?

[StVera]

Here are detailed explanations regarding the reasons why diesel electronic injection fails to start: Battery Depletion: Battery depletion can cause the car to fail to start. There are many reasons for car battery depletion, such as lack of water in the battery, battery malfunction, or prolonged use of the air conditioning. Ignition System Failure: The function of the car ignition system is to provide high-voltage electricity to the spark plugs at the right time to ensure the normal operation of the car. If the car fails to start and the battery is ruled out as the cause, then the issue lies with the car's ignition system. Poor connections in the low-voltage circuit or leakage in the high-voltage wires can cause ignition system failure, affecting the car and making it difficult to start. Low Temperature: In winter, cold weather often causes cars to fail to start. This is because, in low-temperature environments, the viscosity and rotation speed of the car's engine oil decrease, leading to reduced ignition energy from the battery and decreased molecular activity. As a result, flammable gases cannot form, making it difficult to start the car.

[BethanyLee]

I find that diesel common rail vehicles often have trouble starting in winter. First, check the battery—if it's old or the terminals are corroded, you might not even get a spark. Then, look at the starting system; a faulty starter motor or relay might only produce a clicking sound without starting. Next is the fuel system—if the high-pressure fuel pump lacks pressure, the injectors are clogged, or the fuel filter is too dirty, fuel won't get in and ignition won't happen. Sensor failures, especially the crankshaft position sensor, can also cause the ECU to malfunction without receiving signals. Additionally, glow plugs may fail in low temperatures, making the car prone to stalling in cold weather. I recommend regular maintenance of these components, such as replacing the fuel filter every 20,000 kilometers, to save a lot of trouble.