1 1 year 1.0 What's the matter with the unstable idle speed of the Big Dipper? Sometimes idle to 2000 rpm!

Idle valve, water temperature regulator and throttle valve may cause unstable idle speed. Another possibility is that the unclean oil circuit leads to too much gum in the nozzle, which reduces the atomization of fuel injection. When idling, the computer will increase fuel injection to prevent flameout, and the tachometer will fluctuate unsteadily. In this case, you can add two cans of universal stock solution cleaning agent to the fuel tank.