Is the boredom of automatic startup of Lotus L3 related to synchronous belt?

The timing belt is not properly aligned.

You should check whether the engine oil is full, because if the engine oil is full, the pressure in the crankcase of the car will rise, causing the engine to accelerate. If the engine oil is normal, it may be that the fuel injector is blocked or the gasoline pump fails to inject fuel at high pressure, which reduces the combustion efficiency of gasoline and the horsepower of natural vehicles.

There is also a malfunction in the air intake system. The engine of a car needs oil and air to run normally. Check whether the air filter or throttle system is blocked. The failure of exhaust system will also lead to the decline of automobile power, so check whether the three-way catalyst is blocked.