P0313code definition

The code P0313 identifies a misfire code with low fuel level in the fuel tank. The code is often associated with diagnostic codes P0300, P0301, P0302, P0303, P0304, P0305, and P0306.

What the P0313 code means

P0313是一个通用的OBD-II故障代码，它显示在动力总成控制模块（PCM）中。该代码表明PCM在一个或多个发动机的气缸中发现了失火，以及燃油箱中的低燃料读数。该代码仅在发动机完成后至少完成六次旋转后才能在PCM中设置，检测到失火，并且燃油水平降至燃油箱的储备部分。

What causes the P0313 code?

• The fuel tank is low on fuel, and the fuel pump isn’t delivering enough fuel to run efficiently.
• One or more点火线圈是故障的，防止其各自的圆柱体点火。
• 火花塞被犯规并在其圆柱体中几乎没有火花。
• 点火电缆具有破裂或摩擦的绝缘体，在火花塞上产生弱火花或没有火花。
• 喷油器发生故障或插入，因此将燃料注入过多或太少。
• 发动机控制模块内部有故障。

无论是DTC P0313的原因如何，在设置代码时燃油水平都将非常低。

P0313代码的症状是什么？

When DTC P0313 is set in the ECM, the Check Engine light will be illuminated. It will remain on until the vehicle has passed at least three self-test cycles. Along with the Check Engine light, the engine may run rough when P0313 is present. Depending on the cause of the code, one or more cylinders may be running lean or misfiring, and there is potential for the engine to stall. Most commonly, the code illuminates because the fuel level is extremely low and the car is running out of fuel.

机械师如何诊断P0313代码？

使用OBD-II扫描工具诊断DTC P0313。如果故障代码存储或不活动，机械师可能能够清除代码。清除后，应对车辆进行道路测试以验证状况消失，然后再次检查代码，以确保它不会再次待处理或设置。

If the code returns or there is a noticeable misfire, the first step is to fill the fuel tank. If the code is related to a low fuel level, this simple action can clear up the concern.

在填充最低水平的油箱时，机械师将通过检查与受影响的圆柱体的连接来继续诊断关注。通常，也会出现特定圆柱体的失火。机械师可以检查点火线圈连接器，燃油喷油器连接器和点火电缆是否完全座位，并在适用的情况下锁定锁定选项卡。应检查布线是否腐蚀和断裂以及短裤到地面。如果情况仍然存在，机械师可能会开始与另一个圆柱体交换系统上的组件，以确定哪个是故障的。如果DTC遵循一个组件到其他圆柱体，他们将知道要替换哪个部分。

诊断P0313代码时常见错误

诊断P0313时最常见的错误是忽略首先填充油箱。在许多情况下，原因是由于燃油水平较低而流向发动机的燃油流量不佳。否则，如果在进行彻底诊断之前更换零件，可能会发生误诊。

How serious is the P0313 code?

DTC P0313 can be a serious concern particularly if the engine is about to run out of fuel. You can be left stranded and require assistance or a tow to get to help. When the DTC is set for other reasons, it’s often less serious. A misfire can cause poor fuel consumption, higher emissions, and a rough-running engine, though usually it will continue to operate reliably.

What repairs can fix the P0313 code?

DTC P0313的常见维修是这样：

• Refuel the fuel tank. If the concern is due to low fuel level, symptoms will then disappear, then the DTC will simply need to be cleared.
• Replace anignition coil或者点火电缆。一旦特定组件隔离，就可以用新的组件替换。
• Clean the fuel injectors. If the code is due to poor fuel injection, cleaning the injectors can clear up the condition. If they're broken,你可以更换它们。
• Replace the spark plugs。在某些情况下，在寒冷的天气或磨损的火花塞电极中犯规的火花塞可能会导致失火代码。

有关P0313代码的其他评论

DTC P0313最常见于宝马等豪华车辆。在许多其他类型的车辆上，您无需检查发动机灯照明或PCM中的错误代码设置而无需燃油。在BMW车辆上，DTC P0313可以比作预警，即您将用光燃料。

需要P0313代码的帮助吗？

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OBD-II

故障代码

P0313