Santana idle speed and circuit current. Please give us your advice on high scores.

According to what you said, it should be caused by unstable battery voltage. The unstable voltage will make the cylinder ignition abnormal, resulting in unstable idle speed. It can also make the sound of the burglar alarm change, the wiper spray water is weak and so on. In my opinion, one is to check whether the voltage of the battery and generator is normal, and the other is to check whether the outlet connector and grounding wire of the battery and generator are in poor contact.