What happened to Nissan's old Teana 2.3 car?

Hello, your situation may be that the oil supply is not smooth or there is something wrong with the fuel injection quantity control. First check whether the oil pressure of the oil pump is normal and whether the oil nozzle is blocked. Then check whether the signals of intake pressure sensor, water temperature sensor, oxygen sensor and throttle position sensor are good. Fix it if there is a problem! I hope I can help you and wish you a happy life! If there is something wrong with the car, ask the car master. 4S shop professional technician, 10 minutes to solve.