Fault Code SPN 3242: What It Means and How to Fix It Urgency Level: Driving with an active SPN 3242 fault code is not recommended as it indicates a potentially serious issue with the diesel exhaust fluid (DEF) quality sensor. If this code appears, it's best to have the vehicle diagnosed and repaired as soon
Read More
Fault Code SPN 5319: Diagnosis, Repair, and Prevention SPN 5319 is a diagnostic trouble code (DTC) related to issues with the diesel particulate filter (DPF) system. When this code appears, it’s crucial to address the problem promptly to prevent further damage to the engine and emissions system. In our workshop, we've encountered Fault Code SPN
Read More
Fault Code SPN 4766: A Comprehensive Guide for Engineers and Mechanics SPN 4766 is a fault code related to the Diesel Particulate Filter (DPF) system in heavy-duty diesel engines. This article provides an in-depth analysis of the code, its implications, and troubleshooting procedures. Urgency and Drivability When encountering SPN 4766, the level of urgency depends
Read More
Fault Code SPN 4765: Diesel Oxidation Catalyst Inlet Temperature Issue Fault code SPN 4765 indicates a problem with the Diesel Oxidation Catalyst (DOC) inlet temperature sensor on diesel engines equipped with a DOC and Diesel Particulate Filter (DPF) system. In our workshop, we’ve seen SPN 4765 pop up quite frequently, especially on European diesel vehicles.
Read More
Understanding and Addressing Fault Code SPN 3720: A Comprehensive Guide Fault Code SPN 3720 is a critical diagnostic indicator in modern diesel engines, specifically related to the Diesel Particulate Filter (DPF) system. This article provides an in-depth analysis of SPN 3720, its implications, and how to address it effectively. In our workshop, we've observed that
Read More
Fault Code SPN 3719: Soot Level Very High Urgency and Driving Considerations When the SPN 3719 fault code is detected, it indicates the diesel particulate filter (DPF) soot level is very high. The operator typically has about 2 minutes to initiate a parked regeneration before the engine derate or shutdown occurs. Do not continue driving
Read More
Understanding Fault Code SPN 3716: A Comprehensive Guide for Engineers and Mechanics Fault Code SPN 3716 is an important diagnostic indicator in modern engine management systems. This article provides a detailed analysis of this fault code, its implications, and how to address it effectively. In our workshop, we've noticed that Fault Code SPN 3716 is
Read More
Understanding Fault Code SPN 3715 Fault Code SPN 3715 indicates a problem with the diesel particulate filter (DPF) system. When the ECM detects more than a 2 psi differential pressure in the DPF, this code will be set. It's important to address this issue promptly to prevent damage to the DPF and other components. In
Read More
Fault Code SPN 3714: What It Means and How to Fix It Urgency and Severity If your vehicle is displaying Fault Code SPN 3714, it indicates an "Engine Protection Torque Derate" condition exists. This means engine performance is already reduced and the vehicle may be speed limited as well. While you can likely continue driving
Read More
Fault Code SPN 3713: What It Means and How to Fix It Fault Code SPN 3713/FMI 31 indicates that a High Idle Regeneration (HIR) was aborted due to low regeneration temperature in the Diesel Oxidation Catalyst (DOC). This is a serious issue that requires immediate attention. Urgency and Driving Considerations If you get this fault
Read More
