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The DPF light is illuminated.


KWILB

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Greetings,

I am seeking assistance with regards to my 2008 Mazda 5 Sport 2-liter diesel vehicle. In October, the DPF light, engine management light, and traction control light illuminated in my vehicle. I promptly sought assistance from an automotive service facility, where it was determined that the DPF filter had become obstructed. The filter was subsequently cleaned, and the garage confirmed the satisfactory condition of the vehicle, as evidenced by the extinguishing of all warning lights and improved performance. I had used the vehicle over the months of October and November without encountering any difficulties.

In the month of May, I embarked on a journey by automobile, covering a distance of around 50 miles. While driving on the highway at a speed of approximately 70 miles per hour, the vehicle had recurring misfires, subsequently leading to the illumination of the DPF, engine management, and traction control warning lights. I brought the vehicle to the garage for inspection, and the mechanic briefly examined it. Given the proximity to the Christmas holiday and the mechanic's busy schedule, there was limited time available for a thorough investigation. The mechanic indicated that there were no apparent issues with the DPF filter but was unable to conduct a more comprehensive examination at that time. However, they assured me that they would further investigate the matter and provide an update in early January. Currently, I am not using the automobile and I am eager to rectify its issues. Consequently, I am inquiring whether anybody has encountered a similar predicament and if so, what measures were taken to resolve it.

Expressing gratitude is a common social convention that is often used to acknowledge appreciation or recognition for a particular action or gesture.

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The automotive service facility conducted a diagnostic assessment, specifically a code check. Unfortunately, I am unable to recall the specific codes identified during the assessment. However, the codes were related to the diesel particulate filter (DPF), despite the fact that the DPF has just undergone cleaning and is now free from any obstructions.

The vehicle in question has accumulated around 70,000 kilometers. Its most recent service was conducted in February 2018, while the oil and filters were last replaced in October after the activation of the warning light.

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Having knowledge of certain trouble codes may be beneficial. However, it is important to determine the specific engine model of your M5, such as the Pug 1.6 DV6 or the Mazda 2.2, before proceeding. Secondly, if the issue were just related to oil degradation, it would merely result in a flashing DPF light. However, as previously said, providing specific fault codes would assist in identifying and resolving the problem at hand.

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I would want to express my gratitude for the feedback provided. I am now experiencing the problem codes P242F and P2463. The aforementioned codes were obtained in October, and it was communicated that the filter was obstructed. Consequently, the filter was cleaned and both the oil and filter were replaced. Subsequently, the vehicle was driven for a mere 200 miles before the lights illuminated once more, indicating the recurrence of the identical fault codes. I am now uncertain about the appropriate course of action regarding the matter at hand. The individual at the automotive repair facility who had previously expressed intent to address the issue promptly in the next year is presently on vacation. Consequently, I am faced with the necessity to rectify the situation, while simultaneously want to avoid excessive expenditure in the event that the proposed solution proves ineffective. I appreciate any guidance you may provide.

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The Diagnostic Trouble Code (DTC) P242F refers to a condition known as diesel particulate filter limitation, specifically caused by the deposition of soot.

The detection condition for diesel particulate filter soot buildup is determined by the PCM by the use of the exhaust gas pressure sensor output. If the PCM detects that the quantity of soot buildup exceeds 11 g/L {0.69 Ib/ft3}, it concludes that the diesel particulate filter has an excessive amount of soot accumulation.
The Malfunction Indicator Lamp (MIL) will glow if the Powertrain Control Module (PCM) identifies a malfunctioning state during a single driving cycle, while also having stored a Diagnostic Trouble Code (DTC) for the same malfunction in the PCM.
Freeze frame data is readily accessible.
The Diagnostic Trouble Code (DTC) is kept inside the memory of the Powertrain Control Module (PCM).

One potential factor that might contribute to this phenomenon is• Possible causes for concern include potential restrictions or damage to the piping of the exhaust gas pressure sensor, as well as potential restrictions or damage to the diesel particulate filter. Additionally, a malfunction in the powertrain control module (PCM) may also be a contributing factor.
 

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The diagnostic trouble code P2463:00 indicates the presence of a limitation in the diesel particulate filter due to the buildup of soot.

The detection condition refers to the specific circumstances or criteria that must be met in order for a certain event or phenomenon to be detected orThe particulate control module (PCM) utilizes the exhaust gas pressure sensor data to compute the buildup of soot in the diesel particulate filter. If the powertrain control module (PCM) finds that the quantity of soot buildup exceeds 13 g/L (0.8 Ib/ft3), it concludes that the diesel particulate filter has accumulated an excessive amount of soot.
Diagnostic assistance Note In this document, we will provide an overview of the diagnostic assistance available for the subject at hand. We will discuss the many tools and resources that may
The Malfunction Indicator Lamp (MIL) will be activated if the Powertrain Control Module (PCM) identifies the aforementioned malfunction state during the first driving cycle.
The PCM will provide a PENDING CODE if it detects the aforementioned fault state during the first drive cycle.
Both FREEZE FRAME DATA (mode2) and snapshot data are accessible.
The Diagnostic Trouble Code (DTC) is kept inside the memory of the Powertrain Control Module (PCM).

One potential factor that might contribute to this phenomenon is• Possible causes for concern include potential restrictions or damage to the piping of the exhaust gas pressure sensor, as well as potential restrictions or damage to the diesel particulate filter. Additionally, a malfunction in the powertrain control module (PCM) may also be a contributing factor.
 

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