The old Chevy Sail 1.6AT has unstable idle speed, and the engine occasionally has the phenomenon of cylinder flameout and trembling. The new high-pressure cylinder pipeline and new spark plug have bee

The old Chevy Sail 1.6AT has unstable idle speed, and the engine occasionally has the phenomenon of cylinder flameout and trembling. The new high-pressure cylinder pipeline and new spark plug have been replaced, and the throttle has also been cleaned. In addition to the maintenance you have done, it is recommended to check whether the idle motor is normal, whether the oil circuit is smooth, whether the oil pressure of the oil pump is sufficient, and whether the intake manifold pressure sensor is normal. You can also check the dynamic parameters of all sensors and the working state of each cylinder with the help of the automobile computer detector, so as to find problems, accurately judge and maintain them.