What Are the Reasons Why a Car Takes Several Attempts to Start?

[LaGemma]

Normally, a vehicle should start with just one ignition attempt. If the car has difficulty starting and requires multiple attempts, the possible reasons include the following: 1. Low concentration of the air-fuel mixture; 2. Poor gasoline atomization; 3. Insufficient ignition energy; 4. Battery issues; 5. Damage or aging of the ignition coil and spark plugs; 6. Dirty throttle, intake, or exhaust systems; 7. Use of substandard gasoline, etc. Below is an introduction to the automotive ignition system: 1. The automotive ignition system is designed for spark-ignition engines. It operates normally by supplying high-voltage electricity (approximately 15,000–30,000V) to the spark plugs in the correct firing order, ensuring a strong enough spark to ignite the combustible air-fuel mixture. 2. The working process of a mechanical ignition system involves the crankshaft driving the distributor shaft, which rotates the cam on the distributor shaft, causing the primary contacts of the ignition coil to open and close, thereby generating high voltage. 3. Electronic ignition systems can be categorized into closed-loop and open-loop control: A system equipped with a knock sensor that adjusts the ignition timing based on engine knocking is called a closed-loop control system; a system without a knock sensor, where ignition timing is solely controlled by the preset program in the electronic control unit, is called an open-loop control system.