P2002OBD-IITrouble Code: Diesel Particulate Filter Efficiency Below Threshold Bank 1

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Cost of diagnosing the P2002 code

P2002是“柴油颗粒过滤器效率以下阈值1”的诊断故障代码(DTC)。这可能是出于多种原因而发生的,并且机械师需要诊断在您的情况下触发此代码的具体原因。我们经过认证的移动机制可以来您的家庭或办公万博亚洲客户端室执行Check Engine Light 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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P2002定义

P2002故障代码与柴油车辆的颗粒过滤器有关,该过滤器有助于消除天然希望从尾管中出来的黑烟灰。

P2002代码意味着什么

P2002是SAE受控的,柴油特异性的OBD-II通用代码,用于与位于排气管的颗粒过滤器的效率问题。如果从后压力传感器发送到发动机计算机的信号不在制造商的参数内,则计算机将认为过滤器是故障的,从而触发代码。Bank 1指定了负责包括气缸One的圆柱库的过滤器。

What causes the P2002 code?

The most common causes for a P2002 are:

  • 颗粒过滤器故障
  • Faulty exhaust back pressure sensor
  • 排气泄漏
  • 质量不佳的柴油燃料

P2002代码的症状是什么?

Because diesel particulate filters serve an emissions purpose, most P2002 codes won’t result in more than a check engine light or aDPF警告灯。In some cases, poor engine performance and decreased fuel economy will result, and some vehicles may exhibit excessive visual emissions i.e. black soot.

机械师如何诊断P2002代码?

When dealing with a P2002, a visual inspection of both the particulate filter and the back pressure sensor and associated wiring will come first. After this, your mechanic will typically test drive the vehicle with an OBD-II scanner connected to track the back pressure sensor readings. If bank 1 appears to be sending different signals than bank 2, further troubleshooting of the sensor may be needed before determining the particulate filter should be replaced.

诊断P2002代码时的常见错误

Poor quality fuel can often temporarily foul a diesel particulate filter. This is why a test drive at highways speeds is important to try and clear out the filter before replacing parts.

How serious is the P2002 code?

将P2002放置长时间,有时会导致发动机计算机进入li行模式。这限制了最高速度和降低发动机功率以保护传动系统的内部组件。

What repairs can fix the P2002 code?

The most common repairs for a P2002 are as follows:

  • 清除柴油颗粒过滤器
  • 更换柴油燃料
  • Replacing the diesel particulate filter
  • 更换背压传感器

Additional comments for consideration regarding the P2002 code

柴油颗粒过滤器直到2000年代中期才被广泛使用,因此,如果您的柴油车辆年龄较大,则可能不会遇到P2002。

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OBD-II
故障代码
P2002

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