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故障现象一辆2006款桑塔纳车(装备BSA发动机),行驶里程约为7万km,车主进厂报修行驶中偶有“空油门”(踩加速踏板时,发动机转速提升,车速不提升)。故障诊断接车后首先验证故障现象。路试了近10 min也没出现车主所反映的故障现象,发动机加速有力,怠速平稳,离合器工作也很正常,没有出现“打滑”的现象。仔细询问车主相关情况,以期找到故障发生的规律,如冷机和热机是否有区别,故障是发生在起步换挡时还是正常行驶时,发生故障时发动机是否会熄火,以及仪表盘上有无异常报警等。经与车主进一步交流后得知,该故障的出现没有任何规律,随
Symptoms A 2006 Santana car (equipped with BSA engine), mileage of about 70,000 km, the owners entering the factory repair travel occasionally “empty throttle ” (when the accelerator pedal, the engine speed increases, the speed does not increase) . Troubleshooting After the first car to verify the fault phenomenon. Road test nearly 10 min did not appear the phenomenon reflected by the owners of the phenomenon of strong engine acceleration, smooth idle, clutch work is normal, there is no “slippery ” phenomenon. Carefully ask the owner of the relevant circumstances, in order to find the law of failure occurs, such as the cold and heat engine is the difference between the failure occurs in the starting shift or normal driving, the engine failure occurs when the flameout, and the instrument panel is there any abnormal Alarm and so on. After further communication with the owner that the failure of the emergence of no law, with