What is the terrible shaking of Toyota VIOS?

What is the reason for Toyota VIOS reversing jitter? Toyota VIOS shakes when reversing: Because it seldom refuels when reversing; Because when reversing, it will shake because of the rotation of the steering wheel, which is normal. Car jitter is divided into starting, idling and high-speed driving. Startup jitter is mainly due to insufficient fuel combustion, which leads to insufficient power of the car. The causes of idling jitter are: serious carbon deposition in the engine, problems in the ignition system, unstable oil pressure, aging engine components, etc. If idling jitter occurs, the owner is advised to clean the engine, replace the spark plug and check the fuel supply pressure. The most common cause of high-speed jitter is: tires. Too high or too low tire pressure, abnormal tire wear, rim deformation, shock absorber failure, tire dynamic balance, large deviation of wheel alignment data, etc. Of course, in addition to the most common tire problems, the engine power may also cause the car to shake at high speed. In addition to the above problems, the throttle may also be the reason, because the car will have carbon deposition during frequent use, and the engine vibration is too large. It is recommended to clean the throttle regularly. It may also be related to the aging of the engine foot, so it is recommended to check and replace it. @20 19