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    寶馬發動機故障系列的維修注意事項

    來源:http://www.philiprobert.com發布時間:2022-03-03 16:09:09

    發動機管理系統確實記錄了全部氧傳感器加熱控制故障,但不可能4個氧傳感器同時加熱器損壞啊,肯定有其他原因,為了查明真相,先查看電路圖,有時候一看電路圖心里就馬上有譜了,四個氧傳感器加熱線圈電源全部有F37保險絲提供,心想問題肯定在這電源上面了,然后根據電路圖查看右側手套箱保險絲,找到37號位30A保險絲用萬用表測量已經開路,拔下來一看保險絲燒了!
    The engine management system does record the heating control failure of all oxygen sensors, but it is impossible for four oxygen sensors to be damaged at the same time. There must be other reasons. In order to find out the truth, check the circuit diagram first. Sometimes there is a spectrum in mind immediately after looking at the circuit diagram. The power supply of all four oxygen sensor heating coils is provided by f37 fuse, I thought the problem must be in the power supply. Then check the fuse in the glove box on the right according to the circuit diagram. Find the 30A fuse at position 37. Measure with a multimeter that it has been open. Pull it out and see that the fuse is burned!
    你不會認為換個新的保險絲車就修好了吧,千萬不要被表面現象迷惑了,如果換上一個新的保險絲故障燈或許可以熄滅,但故障肯定還會重現。從保險絲燒毀的情況來看,可以分析是線路短路引起,大電流造成保險絲瞬間燒毀,必須找到導致保險絲燒毀的原因,所以還要查找那條電線有短路。將汽車舉升起來,仔細查看氧傳感器線束,看到有一個傳感器線束固定卡子掉了,線束耷拉在排氣管上面了,線束外面的隔熱套管已經融化,氧傳感器線束已經燙破皮了。

    濟南大眾汽車維修哪里有
    You don't think a new fuse car will be repaired. Don't be confused by the surface phenomenon. If you replace a new fuse, the fault light may go out, but the fault will certainly reappear. From the situation of fuse burning, it can be analyzed that it is caused by the short circuit of the line, and the fuse is burned instantly due to the high current. The cause of fuse burning must be found, so it is also necessary to find out the short circuit of the wire. Lift up the car and carefully check the oxygen sensor harness. You can see that one of the sensor harness fixing clips has fallen off, the harness is drooping on the exhaust pipe, the thermal insulation sleeve outside the harness has melted, and the oxygen sensor harness has been scalded.
    有時候已經有三條電線的絕緣皮被燙破了,其中一條正是氧傳感器加熱線圈的電源線。處理方法很簡單,只要把破皮的電線單獨用3M絕緣膠布包好,然后把整個線束包好,線束再用扎帶固定牢就好了。安裝妥當以后,換上一個30A保險絲,清除所有故障碼,儀表黃色故障燈隨之熄滅。
    Sometimes the insulation of the oxygen sensor coil is broken. The treatment method is very simple. Just wrap the broken wire with 3M insulating tape, then wrap the whole harness, and then fix the harness firmly with a tie. After installation, replace a 30A fuse, clear all fault codes, and the Yellow fault light of the instrument will go out.

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