Maxima, just starting, throttle, up and down, what's going on?

Hello! Maxima, the throttle has just started to go up and down. Please check: 1. Whether the throttle body, nozzle and idle motor are dirty or blocked needs cleaning. Second, check whether the spark plug, cylinder line and ignition coil are aging, leaking and burning. Replace it if necessary. Third, check whether the gasoline filter is dirty or blocked. Need replacement. Fourth, check whether the signal of the coolant temperature sensor is true. I hope I can help you. If there is something wrong with your car, ask the car mechanic. 4S shop professional technician, 10 minutes to solve.