P0273 OBD-II故障代码:气缸5喷射器电路低

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Cost of diagnosing the P0273 code

P0273is a diagnostic trouble code (DTC) for "Cylinder 5 Injector Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the检查引擎灯diagnosticfor $114.99。一旦我们能够诊断出该问题,就会为您提供建议的修复程序的前期报价,并获得20.0美元的折扣作为维修的信用。我们所有的维修都得到了我们12个月 / 12,000英里的保修。

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P0273代码定义

该代码定义为气缸5喷射器电路低。

What the P0273 code means

P0273故障代码意味着PCM(动力总成控制模块)已发现从气缸#5的燃油喷射器中的电压水平低于可接受的。基本上,fuel injector is malfunctioning

发生这种情况时,它可以引发通过发动机其余部分的连锁效果。这就是为什么在记录此代码时,引擎的操作参数实际上会更改的原因。例如,为了抵抗由于喷油器无法提供足够的喷雾图案而发生的瘦混合物,对所有其他气缸的燃料混合物变得更富。结果,燃油经济性遭受了影响。

At the same time, a lean fuel mixture is going to make the cylinder work harder which, in turn, will increase the temperature of its head. The result is detonation. To stop this from happening, the PCM will retard the timing which will produce a lack of power in the engine.

是什么原因导致P0273代码?

有一些原因可能导致P0273代码。这些都是:

  • The #5 fuel injector is most likely faulty; it could be damaged or simply dirty.
  • The connector or wiring associated with the #5 fuel injector could be damaged.
  • 内部返回弹簧可能会薄弱或损坏,并损害了#5燃料喷油器的性能。

If none of these issues are found to be responsible, the problem could be that the PCM isn’t working correctly, but this is very unlikely.

P0273代码的症状是什么?

此故障代码可能带有大量症状。检查引擎灯一定会打开。如上所述,它的影响可能很广泛,最终会影响车辆中的其他组件。

每当燃油喷油器无法正常工作时,车辆就会开始需要更多的汽油来继续执行。#5圆柱体也可能因为必须如此努力而破裂。

即使采取了PCM的最大努力,该发动机也可能很难开始。很可能会struggle to accelerateon the road or even stall. It mightmisfireas well.

How does a mechanic diagnose the P0273 code?

To diagnose the problem behind this code, the mechanic will:

  • Start by using an OBD-II sensor to see which trouble codes have been stored
  • Inspect the #5 fuel injector
  • 检查导致#5燃料喷油器的接线
  • 检查电源

诊断P0273代码时常见错误

尽管这种代码几乎总是由于喷油器故障而存储的,但这并不是机械师急于判断并立即更换它的理由。必须应用全面的诊断过程来测试所有可能性。

Furthermore, most mechanics will know the fuel injector is involved just by listening to the owner describe the symptoms listed above. Again, though, they must take their time with assessing the situation. If they don’t do a scan, they may fix the fuel injector and clear that code but not realize that other problems exist.

P0273代码有多严重?

这个问题应非常重视。这不会使任何人的生命处于危险之中,但是如果没有治疗太久,则可能会完全破坏引擎。

幸运的是,在此发生之前,它很可能会变得不可能忽略,但是在此之前,它仍然可以造成许多昂贵的伤害。

哪些维修可以修复P0273代码?

Additional comments for consideration regarding the P0273 code

Annual fuel system cleanings在换油期间,将阻止这种类型的问题发生。

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检查引擎灯
故障代码
P0273

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