What Causes Poor Acceleration When Cold but Normal When Warm?

[VanGenesis]

Poor acceleration when the engine is cold but normal when warm is caused by: insufficient engine power due to starting without preheating. If the vehicle is driven immediately without preheating, the engine's power output will be insufficient due to uneven air-fuel mixture. At low temperatures, insufficiently atomized fuel cannot burn completely, leading to carbon deposits. Some gasoline that isn't atomized may flow directly along the cylinder walls into the crankcase, mixing with the engine oil and reducing its quality. Precautions for engine preheating: 1. Both electronically controlled diesel engines and direct-injection diesel engines require preheating; 2. The preheating time should not be excessively long; 3. Avoid multiple starts when the engine is cold; 4. During engine preheating, check whether related components and operating conditions are normal; 5. Monitor the tachometer to determine if the idle speed is normal.