Ошибка 0340 ниссан мурано z50

Проблему отловил, вина датчика. К вопросу о консалте и осциле, вот скрин консалта в момент фиксации ошибки, и осцилка см. на 32 секунде. И по каким критериям мозги прописывают ошибку, сканер не скажет, Без обид.  Я его просто юзаю и учусь.

К сожалению файл осцилки напрямую не загружается, поэтому ссылка:https://drive.google.com/file/d/0B0kIwV0gNTIUVXpaNDRsMXlDODQ/view?usp=sharing

ЗЫ во время фиксации ошибки, скважность обоих клапанов ввт была на нуле.

вот еще непонятки: см. DSC 4340 (обороты стабильны 1900 об/мин.)

Всем спасибо, за внимание.

Изменено 27 мая 2017 пользователем Algus99

В общем ранее я создавал тему по тому, что обороты выше 2500 не прыгают. Точнее если заглушить и завести, то один раз дает про газовать нормально, но отпустив педаль, такой трюк уже не канает и отсечка разово может быть на 2000, но потом стабильно 2500. Мне подсказывали про МАФ, и я даже изучил, что это за хрень. Но решил заехать на СТО на диагностику.

В общем была ошибка^

— P0340 Датчик или цепь датчика положения распредвала

Потом ее стерли, погазовали и она снова вылезла, плюс еще две новых добавилось:

— P0011

— P0021

Вроде как с этой темы по зажиганию и объяснили они могут быть связаны.

В общем сказали покупай датчики и приезжай менять. А вот такие я хз нужны. Нашел вроде аналоги:

http://baza.drom.ru/blagoveshchensk/sell_s…g829835336.html

http://baza.drom.ru/blagoveshchensk/sell_s…g815688249.html

На экзисте глянул каталожный номер самый первый и вроде много аналогов и куча каталожных номеров. Они так и называются левый и правый?

https://www.exist.ru/price.aspx?pid=38B0408E&sr=119

Изменено 4 мая, 2016 пользователем VESWERdv

One of the more common engine management trouble codes that can occur in the Nissan Murano is P0340. It’s a generic code, which means it has the same definition for every car or truck made after 1996.

P0340 is related to the camshaft position sensor and points to an issue with the wiring harness connected to the sensor. It’s usually caused by an issue with the wiring harness going to the camshaft position sensor (CPS) or the camshaft position sensor itself.

Definition of P0340

Camshaft Position Sensor – “A” Circuit

P0340 is an OBD-II diagnostic trouble code (DTC) that indicates that the powertrain control module (PCM) has detected a problem within your Murano’s CPS circuit, which can negatively impact your vehicle’s performance and fuel efficiency.

This error can arise from a failure, defect, or malfunction in the control, signal, or reference voltage circuit(s) of the position sensor connected to the intake camshaft. It is crucial to address this issue promptly since it can potentially lead to further complications in your vehicle.

The causes of P0340 in the Nissan Murano can vary and go beyond the camshaft position sensor itself. Some possible causes include:

• A faulty camshaft position sensor
• Damaged or corroded wiring and connectors
• Timing chain or belt issues
• Mechanical problems with the camshaft or crankshaft
• Problems with the powertrain control module (PCM)

Causes of P0340 in the Nissan Murano

Defective Camshaft Position Sensor

One common cause of the P0340 code in your Nissan Murano is a defective camshaft position sensor. This sensor plays a crucial role in managing the engine’s ignition spark and fuel injection timing.

If it fails or malfunctions, it can lead to rough idling, misfires, loss of power, and increased fuel consumption. It’s important to check the sensor itself for any signs of damage or wear, and replace it if needed

Corroded Wiring Harness

Another potential cause of the P0340 code is corroded or damaged wiring connecting the camshaft position sensor to the engine control module (ECM).

The wiring in your Murano may be exposed to harsh conditions, resulting in corroded or damaged connections that affect the sensor’s performance.

You should carefully inspect the wiring for any visible signs of corrosion or damage, and, if necessary, repair or replace affected wires to ensure proper signal transmission between the sensor and ECM.

Faulty Timing Chain

A faulty timing chain can also contribute to the P0340 code in your Nissan Murano. The camshaft position sensor relies on accurate timing information to function properly, and a worn or damaged timing chain can disrupt this process.

If you suspect that the timing chain may be at fault, it’s essential to have it inspected and replaced, if needed, to prevent further engine issues and potential damage to other components.

Symptoms of P0340

When you experience a P0340 code in your Nissan Murano, there are several symptoms that you might notice. These symptoms can indicate that the Camshaft Position Sensor (CPS) is not functioning properly and can cause various drivability problems, including:

• Check Engine Light
• Lack or loss of power
• Engine stalling
• Increased fuel consumption
• Poor idle quality
• Misfiring

One of the most common symptoms you will encounter is the Check Engine Light illuminating on your dashboard (which is why you’re here, so let’s move on).

In addition to the Check Engine Light, you may experience a lack or loss of power when you drive your Murano.

This symptom is often accompanied by poor idle quality, misfiring, and increased fuel consumption. The P0340 code can also affect the fuel injection and ignition systems, leading to other related issues.

Another noticeable symptom is engine stalling. A faulty CPS can cause your engine to stall unexpectedly, making it difficult to start or resulting in a completely non-functional ignition system. As the computer signal weakens, your vehicle’s camshaft position sensor may prevent your ignition from sparking at all, leading to total ignition failure.

Diagnosing and Fixing P0340

Diagnostic Tools

To diagnose and fix the P0340 code in your Nissan Murano, you will need a few professional diagnostic tools. These tools include an oscilloscope, a multimeter, and an OBD-II scanner. Consult your vehicle’s service manual for specific instructions on how to use these tools properly.

Checking Wiring and Sensor

First, check the wiring and connectors for any signs of wear or damage. If you find any issues, repair or replace them as needed. Next, use your multimeter to check the voltage at the camshaft sensor to ensure it is within spec.

If the wiring and voltage at your Murano’s camshaft sensor are where they should be you might need to inspect the camshaft position sensor and the crankshaft position sensor. Use the oscilloscope to compare the signals from both sensors. ]If there is a significant difference between their readings, consider replacing one or both sensors.

Resetting the Code and Re-evaluation

Once you’ve completed the necessary repairs or replacements, use your OBD-II scanner to reset the diagnostic trouble code (DTC). Make sure to follow the manufacturer’s recommended procedure for clearing codes.

After resetting the code, test drive your Murano to evaluate the performance and see if the P0340 code reappears. If the code does return, it may be advisable to consult with a mechanic for further diagnosis and expert assistance.

Remember to be professional in your approach and carefully follow the required steps to address the P0340 code in your Nissan Murano.

Frequently Asked Questions

How much does it cost to fix a P0340 code?

The cost to fix a P0340 code in your Nissan Murano can vary depending on the specific issue. If the problem is a faulty camshaft position sensor, the cost of the replacement may range from $100 to $200, for the parts. Labor can get a lot higher depending on how hard the CPS is to get to.

If the issue is related to wiring or a faulty engine control module (ECM), the cost could be higher.

Is it safe to drive with a P0340 code?

While your Murano may still run with a P0340 code, driving with this issue could result in reduced engine performance, poor fuel efficiency, and the risk of further engine damage.

It is recommended to address the issue as soon as possible to maintain the safety and reliability of your vehicle. Continuing to drive with a P0340 code may lead to more expensive repairs down the road.

How do I clear a P0340 code after repair?

After you’ve repaired the issue causing the P0340 code, you can clear the code by using an OBD-II scanner. Plug the scanner into your Murano’s OBD-II port, turn the ignition on, and follow the instructions on the scanner to erase the code.

If the repair was successful, the code should not return and the check engine light will turn off. However, if the code reappears, there may be other underlying issues that require further investigation.