What is the issue when the Chery New A3 engine occasionally becomes more powerful?

[DeOwen]

Here are the specific reasons why the Chery New A3 engine occasionally becomes more powerful: Damaged ignition coil: Check the ignition coil for any signs of damage, bulging, or cracks. A damaged ignition coil can cause the car to shake when accelerating, with intermittent power delivery. Spark plug issues: Inspect the spark plugs to see if the ignition gap has widened or if there is excessive carbon buildup. Carbon deposits or an enlarged ignition gap can directly affect the ignition performance. Exhaust system malfunction: Examine the exhaust system to determine if the three-way catalytic converter is clogged. A blocked three-way catalytic converter can make the engine feel sluggish when accelerating, as high-temperature gases cannot be fully released.