What is the reason for the severe shaking after disassembling the transmission of a Guobiao II Qiaoge?

[OJason]

The reasons for the severe shaking after disassembling the transmission of a Guobiao II Qiaoge are as follows: Knock sensor failure: Normally, the knock sensor does not cause problems, but prolonged driving can lead to wear and tear, resulting in failure. Solution: It can be repaired or directly replaced. For repair, use solder wire for welding and then wrap it with high-temperature-resistant tape. ECU (Engine Control Unit) issue: Problems with the ECU can also cause shaking, as the ECU controls cylinder ignition. If the ECU malfunctions, normal ignition cannot be achieved. Solution: It is necessary to promptly visit a 4S shop or a professional auto repair shop for inspection.