How about Sonata Mingyu waste oil 20 1 1 year?

There are many reasons for this. For example, if the engine is not cleaned for a long time or is too dirty, it will directly affect the adjustment data of oxygen sensor No.9.

First, check the carbon deposit on the throttle body and idle valve. If there is carbon deposit, clean it up first, and then observe it during trial operation. Secondly, check whether the signals of throttle position sensor, oxygen sensor, water temperature sensor and intake pressure sensor are normal. The engine computer mainly controls the fuel injection quantity according to the signals of these sensors, which should have little to do with the throttle body.

When driving at ordinary times, lightly step on the accelerator to keep the engine speed stable.