The author introduces basic principle,inspection and test method of the hot-film air flow meter on JETTA CT,elaborates its fault diagnosis and resolution with examples.

• 详细介绍捷达王轿车发动机热膜式空气流量计的基本原理、检测及检查方法,运用实例阐述热膜式空气流量计的故障诊断与排除。