10 Nissan converse engine speed can't go up to 3000.

1, engine problems lead to speed-up, and also lead to weak acceleration. Generally, the ignition is poor, the spark plug needs to be replaced, the ignition coil needs to be replaced, the nozzle is blocked, the nozzle atomization is not good, the fuel pressure is insufficient, the timing jumps, and the camshaft oil circuit is blocked. The throttle valve is too dirty. The intake pressure sensor data is abnormal. Poor exhaust leads to high exhaust back pressure.

2. Too much oil or poor oil will also lead to ineffective refueling. Gearbox is generally caused by lack of oil, damage of hydraulic torque converter and failure of shift solenoid valve to upshift. The possibility of gearbox is very small, and it rarely breaks down.