What is the fault of sudden flameout when Nissan Tiida is driving?

1, carbon deposit, too much carbon deposit and dirt formed in the throttle valve and the surrounding air intake, and the cross-sectional area of the air passage changes, which makes the control unit unable to accurately control the idle intake, resulting in unstable idle speed or flameout.

2. Memory of idle speed value when ignition switch is turned on, poor contact of throttle control harness, and disassembly of throttle. If the battery is parked for too long or the battery pile head is disconnected for too long, the idle memory value stored in the engine control unit will be lost, resulting in the idle value rising and falling.

3, data flow inspection, this kind of inspection for intermittent or accidental failures, using a diagnostic instrument to check and compare the CAN system, can be ruled out.

To sum up, if the above 1 and 2 are normal, it is recommended to go to a maintenance franchise store, and an experienced maintenance technician will conduct a third inspection to eliminate this fault.