Why is the fuel consumption not displayed on the car dashboard?

[Cora]

The dashboard not displaying fuel consumption could be due to a damaged dashboard, wiring issues, or a faulty fuel level sensor. It is necessary to check whether the fuel level sensor wiring, live wire, and ground wire are functioning properly. Methods to reduce fuel consumption: 1. Correctly adjust tire inflation pressure: Maintaining the recommended tire pressure can reduce rolling resistance and lower fuel consumption. Additionally, slightly increasing the tire pressure by +0.2bar above the recommended value can also save fuel. 2. Moderate use of in-car auxiliary electrical equipment: Using certain electrical equipment can significantly increase fuel consumption, such as the air conditioning system's cooling function. If the heating purpose has been achieved, the seat heater should be turned off promptly. The rear window defroster should also be turned off when there is no fog or ice on the window. 3. Proper use of gears: Match the gear to the appropriate speed; avoid driving at high speeds in low gears or low speeds in high gears. Shift gears in advance to ensure the gear matches the speed, and avoid driving at high speeds in low gears or low speeds in high gears.

[BraxtonLee]

I just encountered a situation where the dashboard didn't display fuel consumption a couple of days ago, and I initially thought the car was broken, so I quickly asked a friend for advice. Generally speaking, this issue could have several causes: it might be due to accidental operation of dashboard settings, as some cars can switch display modes by long-pressing the steering wheel buttons; it could also be a faulty instantaneous fuel consumption sensor—my old car had this problem when the sensor probe got clogged with mud; or it might be an electrical issue, like a blown fuse or poor contact in the dashboard wiring. Remember to try restarting the vehicle first, as sometimes a frozen infotainment system can cause display abnormalities. If you really can't figure it out, it's best to connect a diagnostic computer to read the fault codes. If you can't handle it yourself, a repair shop can usually diagnose it in half an hour. Don't tough it out—driving without fuel consumption display is really unsettling.

[LaAlan]

This issue should be examined from the vehicle's electronic system perspective. The fuel consumption display on the dashboard relies on the vehicle's data network. Typically, if signals from the speed sensor or engine control module fail to reach the dashboard, display issues will occur. Some high-end vehicles feature driving mode switching, where fuel consumption data might be hidden in sport mode. I've encountered cases where a stuck fuel tank float caused signal distortion, leading the vehicle system to directly disable the display. Ordinary car owners should avoid dismantling the dashboard themselves, as it can easily trigger airbag fault codes. A simple method is to use the OBD interface to read the data stream and check if real-time fuel consumption values can be captured. If even the computer can't read the data, it's likely a wiring issue. It's best to first check the dashboard power fuse in the fuse box—replacing it with a new fuse costing about 20 yuan might just solve the problem.

[TannerDella]

The missing fuel consumption display on the dashboard is most likely a setting issue. Many cars come with multi-function steering wheel buttons, and accidentally pressing the toggle button might switch to other information displays. My wife's car once showed tire pressure after she randomly pressed buttons. The display logic also varies at different speeds - some vehicles automatically hide fuel consumption below 20km/h. Check your owner's manual under the combination meter section and follow the instructions to reset the display mode. For vehicles with central control screens, navigate to the vehicle settings menu and check display options to see if it's been turned off. Occasionally, battery disconnection may cause instrument memory loss - try restarting the engine several times after jump-starting. If all else fails, perform a factory reset - don't let minor issues ruin your driving mood.