P0354代码定义

When there is a problem in the ignition coil “D” circuit (on either the primary or secondary side), the P0354 code will be stored. For the vehicle to run smoothly and without stalling, it’s essential for the ignition coil (or coils) to perform properly. If they are not, you can expect a P0354 code to be stored and the Check Engine Light or MIL (Malfunction Indicator Light) to illuminate.

P0354代码的意思是什么

A P0354 code means that the ignition coil or coils are not functioning properly and that there is an electrical problem with them. The ignition coils are responsible for properly igniting the air-fuel mixture in the engine’s combustion chambers. If a vehicle has a P0354 code stored, it will not be able to ignite that mixture with the correct timing, and the engine will run roughly and/or stall.

是什么原因导致P0354代码？

几个问题可能会导致车辆的动力总成控制模块（PCM）存储P0354代码。一些最常见的原因包括：

• 泄漏的歧管真空吸尘器
• 点火线圈有故障
• 空闲空气控制阀故障
• 一个故障的电子主体
• One or more defective spark plugs

What are the symptoms of the P0354 code?

Unlike some other codes, when the P0354 code is stored, you will almost always notice more symptoms than the Check Engine light illuminating. In addition to this (or the MIL illuminating), common symptoms include:

• 引擎不便的引擎（可能是一致的或间歇性的。）
• 粗糙的发动机空闲
• 加速时会失火

在某些极少数情况下，除了检查引擎灯外，您可能不会注意到任何症状。

How does a mechanic diagnose the P0354 code?

当存储P0354代码时，它表明PCM在车辆运行时不会从点火线圈接收正确的信号。这可以指示点火线圈的主（计算机）侧或线圈的次级（火花塞）侧的问题。

验证代码的原因将需要OBD-II扫描仪和几个测试。只要机械师密切关注油门位置，发动机节奏（RPMS），道路速度和发动机负载，试图重现代码被存储的情况的测试驱动器也可能会有所帮助。如果车辆失火，通常会验证代码，并且机械师可以继续进行诊断步骤以确定问题的原因，对其进行修复，清除代码并进行重新测试。

诊断P0354代码时常见错误

诊断出P0354代码原因时，最常见的错误之一是当问题的实际原因是真空泄漏时，诊断出有缺陷的点火线圈。同样，有些人会认为当问题出在真空泄漏或其他原因的问题上，需要更换火花塞。

How serious is the P0354 code?

In most cases, when a P0354 code is stored, the vehicle will run rough and either intermittently or consistently misfire when accelerating. These symptoms can be unpleasant at best and dangerous at worst. Consider what might happen if you need to accelerate quickly but your vehicle is misfiring and not behaving as it should.

What repairs can fix the P0354 code?

Some of the most common repairs for a P0354 code include:

• 更换或修理泄漏的歧管真空
• 将故障接线替换为ignition coil(s)
• Replacing old or mismatched火花塞
• 更换或修理点火线圈

Additional comments for consideration regarding the P0354 code

除了使驾驶不愉快且可能不安全外，存储的P0354代码还可以使您的车辆注册更新。为了通过OBD-II排放测试，您不能具有照明的检查引擎灯或MIL，并且其中一种灯将继续照亮，直到解决问题并清除代码为止。

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Check Engine Light

P0354

故障代码