What phenomena may occur if the air flow meter is faulty?
2 Answers
If the air flow meter is faulty, the following phenomena may occur: 1. The engine may experience surging and intermittent stalling due to inaccurate high-speed signal output from the air flow meter. 2. The engine may emit black smoke and consume excessive fuel because the faulty air flow meter affects fuel injection, leading to excessive fuel injection by the injectors and a rich air-fuel mixture. In summary: The air flow meter is an important sensor that affects the engine's fault status. Symptoms such as engine stalling, surging, black smoke emission, and excessive fuel consumption may occur. The causes of air flow meter damage include circuit faults or excessive dirt on the air flow meter.
A faulty mass air flow sensor can make the engine extremely difficult to start. Sometimes the car won't start at all, or it starts but immediately stalls. At idle, the car may shake erratically, feeling like it's about to fall apart. When accelerating, there might be a lack of power, and the car responds sluggishly when the throttle is pressed. Fuel consumption may noticeably increase, with the fuel gauge dropping quickly even after short distances, as the ECU can't accurately calculate the air-fuel ratio. Exhaust emissions may become abnormal, such as emitting black smoke or having a strong odor. The most common sign is the illumination of the check engine light on the dashboard. If these issues aren't addressed promptly, long-term engine damage is likely. It's recommended to visit an auto repair shop as soon as possible for a diagnostic scan to avoid more severe problems.
