Can You Still Drive with Idle Stop Malfunction?
3 Answers
There are sparking phenomena in the high-voltage coil, high-voltage line, distributor cap, cylinder line, and spark plug. Here is the relevant information: 1. Working principle: The idle speed motor is a component that regulates the idle speed of a car. When the engine is idling, it is called idle speed. During idle speed, the cross-sectional area of the idle air passage is adjusted according to the engine temperature and load, ensuring that the engine maintains the optimal idle speed under different conditions. 2. Function: The main function of the idle speed motor is to manage the car's idle speed, with the primary purpose of adjusting the idle speed based on the engine load during idling. The idle stepper motor is mounted on the throttle body and is used by the engine controller to regulate the engine idle speed. When the engine speed deviates from idle, it is controlled by the throttle valve, which adjusts the amount of air entering the intake manifold and is mechanically operated by the accelerator pedal cable. The throttle body has a bypass air passage that supplies air during engine idle (when the throttle valve is closed).
I encountered a start-stop system warning light just a few days ago. When the fault light comes on, don't panic immediately – the car can still be driven normally, but the auto start-stop function will basically be disabled. The most important thing is to observe the vehicle's condition: if the brake pedal becomes stiff or the steering feels heavier, it indicates the vacuum booster system might be malfunctioning. In such cases, you must pull over immediately and call for assistance. If the driving feels normal, you can drive to a repair shop for inspection in the short term, but remember to manually turn off the start-stop button to avoid sudden engine stalls. Once when I was driving a friend's car, it failed to restart after stopping at a red light – later diagnosed as unstable voltage due to an aging battery. Replacing the battery solved the problem.
Based on my extensive experience in dealing with start-stop system malfunctions, the vehicle's driving capability is usually unaffected, but three preparations are essential. Immediately deactivate the start-stop function after ignition to prevent unexpected engine shutdowns at traffic lights; keep a power bank or emergency power supply in the car, especially during winter when low temperatures make the battery more prone to draining; and when visiting the repair shop, focus on checking three key points: battery health, brake vacuum pump sensor, and engine control module, as abnormal data from these components most frequently triggers false alarms. Once, during heavy rain, I encountered a system error which turned out to be a temporary fault caused by water splashing onto the wheel speed sensor—it resolved after drying.
