一辆红旗7180型乘用车进厂维修,驾驶员讲车子跑不起来,超过40km/h车子就发冲。经试车,车子确实冲得厉害。用VAG1552故障阅读仪查询故障代码,结果没有故障代码显示;读取数据流,发现各种数据都在正常范围之内。于是怀疑是点火正时不对,重新调整了点火正时,并反复调整点火时间,故障依旧。于是又怀疑可能是断火引起车子发冲,便依次换了高压分缸线、火 A red flag 7180 passenger car into the factory maintenance, the driver can not run the car up, more than 40km / h car on the red. After the test car, the car really red fiercely. Using the VAG1552 fault reader to query the fault code, the result is no fault code display; read the data stream and found that all kinds of data are within the normal range. So I suspect ignition timing wrong, re-adjust the ignition timing, and repeatedly adjust the ignition time, the fault still. So they suspect that the fire may cause the car to send red, then turn the high pressure points cylinder line, fire