How many kilometers can a car travel when the fuel gauge light comes on?
1 Answers
When the car's fuel gauge light comes on, it can still travel 40-60 kilometers. Here is a detailed introduction about the car fuel gauge: 1. After filling up the tank, the fuel tank float rises, causing the contacts and sliding piece of the fuel level sensor to not reach the edge position or even disconnect. This increases the resistance, simulating a low fuel situation, and the fuel warning light will activate and stay on. 2. A malfunction in the fuel level sensor can cause the fuel gauge indicator light to stay on constantly. The fuel level sensor detects the position (height) of fuel in the container by measuring the change in capacitance between the sensor shell and the sensing electrode when fuel enters the container, converting this change into a current variation. 3. Circuit failure. When there is a short circuit or open circuit in the wiring, the system cannot read the information from the fuel level sensor, resulting in the indicator light staying on constantly.