Vehicle status: The 2019 Kruze, the engine model is LIW, and it has traveled 43,000 kilometers in more than two years, without major accidents. The car suddenly shuts down while driving, which may be caused by these reasons: 1. Gasoline pump failure;

Vehicle status: 2019 Kruze, engine model is LIW, driving 43,000 kilometers in more than two years, without major accidents.

Fault description: The car suddenly shuts down while driving.

The car suddenly shuts down while driving, which may be caused by these reasons: 1. gasoline pump failure; 2. generator failure; 3. engine computer failure.

Failure Cause 1: Gasoline pump failure.

The maintenance technician uses a car diagnostic computer to read the data flow of the gasoline pump and analyzes whether the pressure of the gasoline pump is within the normal range to confirm the fault. If the pressure of the gasoline pump is insufficient, the fuel supply to the engine will become smaller, causing the engine to fail to work, and then the engine will be shut down.

Solution 1: Replace the gasoline pump. The 4S store will be replaced for free during the warranty period; if it is out of warranty, the replacement fee for the 4S store is around 1,000-1,500 yuan, and the replacement fee for the repair shop is around 800-1,000 yuan.

Failure Cause 2: Generator failure.

Maintenance technician uses multimeter to detect the voltage of the generator. If the voltage is lower than 14V, the generator can be confirmed to have a fault; if the generator fails, the battery cannot be supplied with electricity. When the battery power is consumed, the electrical appliances in the car cannot work, and the engine will be shut down.

Solution 2: Replace the generator. The 4S store will be replaced for free during the warranty period; if it is out of warranty, the replacement fee for the 4S store is around 2,000-3,000 yuan, and the replacement fee for the repair shop is around 1,500-2,000 yuan.

Failure Cause 3: Engine computer failure.

The maintenance technician used a car diagnostic computer to read the data flow of the engine computer and analyze whether the working status of the engine computer is normal; then used a multimeter to detect the resistance value of the generator computer. If the resistance value is not within the normal range, the fault can be confirmed.

The engine computer fails, and the engine ignition time, air intake and fuel injection cannot be controlled normally, which will cause the car to suddenly stop.

Solution 3: Replace the engine computer. The 4S store will be replaced for free during the warranty period; if it is out of warranty, the replacement fee for the 4S store is around 1,500-2,000 yuan, and the replacement fee for the repair shop is around 1,000-1,500 yuan.

summary, after detection, the car in the case suddenly stopped during driving due to an engine computer failure. For specific treatment methods, please refer to Solution 3. In this regard, we recommend that car owners: regularly maintain their car and solve problems in a timely manner to avoid affecting their normal use.