No code breakdown diagnosis has the certain blindness, so it is a difficulty in engine service.

无故障码故障的诊断带有一定的盲目性，是发动机维修中的一个难点。

youdao

No code breakdown diagnosis has the certain blindness, so it is a difficulty in engine service.

无故障码故障的诊断带有一定的盲目性，是发动机维修中的一个难点。

youdao