What causes a Passat Lingyu to have fuel but no spark?

[LaPresley]

Passat Lingyu having fuel but no spark can be caused by issues such as fuel injector circuit failure, crankshaft position sensor malfunction, and aging spark plugs. Below are the reasons and solutions for this problem: Fuel injector circuit failure: If there is a fuel injector circuit failure, the injector will not function properly, and the vehicle will naturally fail to start. Solution: Repair the circuit. Crankshaft position sensor malfunction: The main function of the crankshaft position sensor is to determine the basic ignition timing. If it malfunctions, it will cause ignition disorder. Solution: Test the sensor's performance and replace it if necessary. Aging spark plugs: Spark plugs that have reached the end of their lifespan or have excessive carbon buildup will result in poor ignition performance. Solution: Replace with new spark plugs.