What are the reasons for engine acceleration failure?
2 Answers
Engine acceleration failure is caused by poor fuel quality. Detailed reasons and solutions for engine acceleration failure are as follows: Detailed reasons: Poor fuel quality; cracked engine intake pipe; incorrect ignition timing; fuel injection system failure; throttle position sensor failure; three-way catalytic converter failure; spark plug failure; slow response of transmission computer. Solutions: Replace the engine intake pipe; adjust the ignition timing; replace the fuel injection system; replace the throttle position sensor; inspect the three-way catalytic converter; use higher-grade fuel; replace the spark plugs; replace the transmission computer.
I've driven quite a few cars, and the most common cause of engine acceleration issues is fuel supply problems. For example, if the fuel pump fails or the filter is clogged, the car won't get fuel and will just roar without moving. The ignition system is also crucial—worn-out spark plugs that can't ignite properly or faulty ignition coils with unstable current will make acceleration sluggish. If the air filter in the intake system is dirty or there's an air leak, the engine can't get enough air, leading to incomplete combustion and poor performance. Faulty sensors like the throttle position sensor or oxygen sensor can mislead the ECU, causing it to send incorrect commands. A clogged exhaust system, such as a melted catalytic converter, creates excessive backpressure and hampers exhaust flow, reducing power. For safety, if acceleration fails, don't force the car onto highways; pull over to check or call a tow truck to avoid accidents. Regularly replacing air and oil filters can prevent these issues. More complex problems like low compression due to weak cylinder pressure or ECU malfunctions require professional diagnostic tools.
