What Causes the Feeling of Jerking Acceleration as if Not Supplying Fuel?
1 Answers
There can be many reasons for this situation. First, it could be an issue with fuel quality. Additionally, it is necessary to check the vehicle's intake system, fuel system, spark plugs, and ignition coils. Some vehicles may experience jerking sensations due to carbon buildup. Below are some related reasons for the feeling of jerking acceleration as if not supplying fuel: 1. Carbon buildup in the engine and intake manifold: Carbon deposits can absorb a certain amount of fuel, causing the ECU to make incorrect judgments. For example, if the computer controls the injection of 100 units of fuel-air mixture, but only 90 units actually enter the cylinder because 10 units are absorbed by carbon deposits, even if the remaining 90 units burn completely, the required power output is not achieved, leading to unavoidable jerking. 2. Ignition system failure: Aging of the ignition system can weaken the ignition energy, causing the ignition coils or spark plugs to fail to ignite continuously or to experience interruptions during ignition. Intermittent ignition results in uneven power output, leading to jerking sensations during acceleration. Therefore, it is important to focus on the maintenance and replacement of the ignition system during daily vehicle use. If a spark plug fails while driving, it can easily cause an engine misfire, severely affecting the engine's lifespan.
