Toyota Cool Road Ze has a key, the throttle is weak, and sometimes it will suck fire.

What you want to ask is what happens when Toyota Cool Road Ze is equipped with a key and the throttle is weak sometimes? The reason for this is the following：

1. There are problems with the ignition system, such as the aging of the ignition coil and the long-term failure of the spark plug, resulting in insufficient ignition energy, poor combustion, weak engine acceleration and engine failure light.

2. Fuel system failure System failure leads to low pressure, and insufficient fuel injection will lead to weak engine acceleration.