Application of waveform and data flow analysis in engine sensor fault determination - a case study of Volkswagen B7 engine

Taking Volkswagen B7 engine as the main research object, this paper analyzed the mechanism of typical sensor faults and summarized the causes of common faults. Then, the use of engine fault diagnosis instrument, B7 comprehensive analyzer, KT - 600 engine equipment structures, experimental platform, the use of waveform analysis and data flow analysis fault test is carried out for the part of the sensor test, it is concluded that using waveform and data flow of the general regularity of auto sensor fault diagnosis and has high practical significance and value.