P2619代码定义

该OBD-II DTC表示曲柄位置信号输出电路打开。

What the P2619 code means

曲轴是车辆移动能力的关键组成部分。曲柄位置传感器（CPS）将信号发送到PCM（动力总成控制模块）介绍曲轴的位置，该位置由PCM解释为电压读数。这些读数用于确定发动机时机，燃油输送和其他重要的操作细节。当曲柄位置信号出现在普通参数之外，或者完全不存在时，车辆的计算机将存储此代码。

What causes the P2619 code?

A number of conditions may contribute to this fault:

• 有故障CPS
• CPS接线或连接器腐蚀或松动
• Damaged crankshaft reluctor rings or teeth
• Broken timing belt or chain which is wound around the timing gears
• 有故障PCM (rare)

What are the symptoms of the P2619 code?

Along with a stored code and illuminatedCheck Engine Light，您可能会遇到no-start condition,rough idling, rough acceleration,引擎失火，发动机性能差和/或燃油效率降低。

How does a mechanic diagnose the P2619 code?

诊断可能涉及：

• Scanning the vehicle’s computer to verify the code, record freeze frame data, and check for concurrent codes
• 清除代码，然后测试驾驶车辆以查看他们是否返回
• Visually inspecting the wiring harness and connectors for damage or loose connections
• Testing the crank sensor resistance and voltage to see if they match manufacturer specifications
• Observing distributor, crankshaft, and camshaft sensor waveform patterns with an oscilloscope
• 使用引擎启动或运行的引擎测试RPM信号

Common mistakes when diagnosing the P2619 code

Visual inspection of timing components is often overlooked. If the CPS and its circuitry are all functioning properly, timing parts should be inspected for broken reluctor rings, damaged gear teeth, and other abnormalities.

How serious is the P2619 code?

P2619可能会对车辆的运行能力产生严重影响。即使您没有遇到任何严重症状，多个系统也可能会受到曲柄位置信号问题的影响，包括注入燃油and the timing of engine firing. In order to prevent engine problems which could compromise your safety, as well as further damage, you should have the problem checked out by a qualified mechanic as soon as possible.

哪些维修可以修复P2619代码？

One or more of the following fixes may be necessary:

• CPS replacement
• 维修接线或连接器
• Timing belt或者chain替代品
• 置换环更换或维修齿轮牙齿损坏

Additional comments for consideration regarding the P2619 code

There are two different kinds of systems when it comes to crankshaft position. The first only uses crankshaft position to detect misfires, rather than to dictate spark timing or ignition. The second type does use crankshaft position for ignition control and spark timing. CPS problems in the first type of system won’t typically cause a no-start condition. If your vehicle utilizes the second type of system, you’ll be much more likely to experience serious conditions like no-start, or poor engine performance.

If the code fails to set again after the vehicle’s computer has been cleared, this can be a sign of an intermittent condition. These can be difficult to diagnose, and may have to be allowed to get worse before the code sets consistently, allowing for a thorough diagnostic procedure to be carried out. According to professional technicians, wiring and connector problems are almost always the cause of an intermittent CPS signal condition.

If the CPS needs replacing, both that and the camshaft position sensor should be done at the same time. The same is true of reluctor rings – these things should be replaced in sets so that all components wear at the same rate.

Need help with a P2619 code?

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