What Causes Insufficient Fuel Supply in a Car?

[AutumnLynn]

Here are the specific reasons for insufficient fuel supply in a car: 1. Low engine temperature: During cold starts in winter, the temperature inside the engine is insufficient, and both the fuel and lubricating oil are not warm enough. More fuel should be injected during cold starts to meet power requirements. Poor fuel atomization at low temperatures leads to reduced ignition energy, thereby affecting performance. 2. Carbon deposits in the engine and intake manifold: Carbon deposits can absorb an appropriate amount of fuel, causing the ECU to make incorrect judgments. For example, if the computer controls the injection of 100 units of fuel-air mixture, only 90 units actually enter the cylinder, with 10 units absorbed by carbon deposits. Even if the remaining 90 units of mixture burn completely, the required power output cannot be achieved. 3. Ignition system malfunction: Aging of the ignition system weakens the ignition energy, causing the ignition coil or spark plugs to fail to ignite continuously or to experience interruptions during ignition. Intermittent ignition prevents smooth and continuous power output.