What's wrong with the new engine 4 1 18?

Hello, according to the situation, it is caused by excessive combustion of mixed gas. Please check whether the water temperature sensor, oxygen sensor, air flowmeter and throttle position sensor are normal and whether the oil pressure regulator is damaged. Oil pressure is too high. Check whether the ignition of the spark plug is good and whether the nozzle leaks oil. Generally, these are the reasons. I hope to help you with your car problem and ask the car master. 4S shop professional technician, 10 minutes to solve.