Mazda six idle speed is unstable. What's it like running around on the road?

Idle instability usually involves several components, such as intake pressure sensor, idle motor and throttle position sensor.

There are only two ways to solve the problem of burning oil. 1 is an engine overhaul, 100% is solved, but it is expensive. Another method is to replace the valve gasket and rocker arm assembly and the exhaust valve guide. There is only a 30% chance that this method is good. You can consider the service life and residual value of the car before making a plan.