What are the causes of poor engine acceleration?
2 Answers
The causes of poor engine acceleration are: 1. Incorrect ignition timing; 2. Low fuel pressure; 3. Air leaks in the intake system; 4. Faulty throttle position sensor or air flow meter; 5. Poor injector performance; 6. Malfunctioning exhaust gas recirculation system; 7. Weak ignition signal. The function of the engine is: to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, causing the gas to expand and push the piston to perform work. Engine maintenance methods: 1. Use qualified engine oil; 2. Use qualified coolant; 3. Regularly clean the radiator scale; 4. Regularly remove carbon deposits from the engine.
Recently, I always feel like my car has no power when accelerating. After taking it to the repair shop for inspection, I found out there were quite a few issues. The most common problem is with the fuel system – either the fuel pump is old and can't supply enough fuel, or the fuel injectors are clogged with carbon deposits, just like my 80,000-kilometer-old car. Another issue could be with the ignition system, where the spark plug gaps are too wide or the ignition coils are aged, causing incomplete fuel combustion. It might also be that the air flow meter is covered with dust, preventing the engine from taking in air, or the catalytic converter is clogged, making it hard for exhaust gases to escape. Even a faulty throttle pedal sensor can cause this, and more seriously, internal engine air leaks or improperly closing valves. You shouldn't ignore this problem – last time I drove for half a month like this and ended up paying over 4,000 yuan for repairs.
