P0149 OBD-II: 燃油正时错误 OBD-II故障代码P0149是什么意思？
OBD-II代码 发动机性能降低被定义为燃油正时错误。
发动机控制模块（PCM）使用燃油导轨压力传感器确定喷油器的燃油量。 如果 PCM 发现指令压力不等于实际压力，则 PCM 将设置代码 P0149。
有此故障代码的车辆应送至修理厂进行诊断。 查找修理厂
发动机性能下降 症状
触发P0149代码的常见问题
- 燃油系统中有空气
- 燃油泵故障
- 喷油泵正时失调
- 燃油管泄漏
P0149代码所需的常见维修
Ronald Thomas
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