Why is the electronically injected diesel car slow to accelerate and lacks explosive power?
2 Answers
Here is the relevant introduction to the slow acceleration and lack of explosive power in electronically injected diesel cars: 1. Reasons for slow acceleration and lack of explosive power in electronically injected diesel cars: For example, the presence of water in the fuel system leads to incomplete combustion of fuel; excessive carbon deposits adsorb part of the fuel, causing an abnormal air-fuel mixture ratio and incomplete combustion; severe wear of pistons, piston rings, and cylinders increases the clearance between them, reducing sealing performance, which results in cylinder head leakage and lowers cylinder compression pressure, among other issues. 2. Advantages of electronically injected diesel cars: Compared to earlier models, modern electronically injected diesel cars have significantly improved power, greatly reduced noise, and noticeably enhanced driving comfort for drivers. The application of automotive power self-diagnosis technology makes the fuel injection timing more precise and the noise smaller. The intercooled turbocharging ensures more complete fuel combustion. Additionally, after the car starts, the influence of turbo inertia means the faster it runs, the more fuel-efficient it becomes, and the more powerful the performance.
As a technician who has worked on many diesel vehicles, I believe the slow acceleration and lack of power in electronically injected diesel vehicles often stem from a few key issues: Poor fuel flow is critical, such as clogged injectors or carbon buildup, which directly affects horsepower due to improper fuel spray. A dirty air filter can also restrict airflow, making the engine struggle to breathe. If the turbocharger malfunctions, the reduced boost results in weak performance. Sensor issues are common too—problems with the mass airflow sensor or oxygen sensor can cause the ECU to misread data. Additionally, a clogged DPF (diesel particulate filter) can severely restrict exhaust flow, choking the engine. I recommend checking the trouble codes immediately to prevent further damage. Have the necessary cleaning or replacements done by professionals, as prolonged neglect can lead to costly engine wear.
