Fault 6: hcrv air vibration with cyclical reasons: hcrv air loosting contrate nuts in the piston, computer when you hit the gas pump intine cylinderhead.

• 障碍6：气泵刚烈波动，且带有周期性 来因：气泵边活塞端背螺母不松动，参加后撞到气泵边壁缸关。