How to solve the idling jitter of Palio engine? Seek expert answers

Tell me about my experience. There is also idling jitter, which is even worse when the air conditioner is turned on. In summer, it is terribly hot. I can't change idle motor, throttle position sensor, clean throttle, spark plug and cylinder line. Then one day, I drove more than 200 kilometers at high speed, and the next day I began to shake badly. As a result, the test found that the ignition coil was broken, so it was no problem to buy two ignition coils and install them.