mazda 6 dpf regeneration frequency
The P2459 code indicates that the regeneration process has not been completed at the desired rate within the programmed period of time (or miles / km). This code should only be displayed on diesel vehicles. DPF systems are designed to remove ninety percent of carbon (soot) particles from diesel exhaust gases.Reaction score. 0. Sep 3, 2021. #1. Hey all, Have a 2020 6.7 with 37k miles. About 10 days ago got a check engine light with code P2459- Frequent Regen. My truck had been running a Regen about every 25 miles. As soon as one would end another would start. My driving is about half highway and half local road. Regeneration is a process used to remove Carbon (C) build up from the DPF catalyst. This process occurs on a regular frequency that varies based on system and application. For example a 2007 system might have regenerated every 12-24 hrs whereas our 2017 systems might make it >100hrs before requiring a regeneration. The fault code for the regeneration frequency of the diesel particulate filter (DPF) appears when the vehicle is regene-rated unusually often or for too long. Normal regeneration intervals (driving distances between two regeneration peri-ods) are 250 km (City driving) and 500 km (Highway driving).
P24A0 - Closed Loop DPF Regeneration Control At Limit - Temperature Too Low P249F - Excessive Time To Enter Closed Loop DPF Regeneration Control These DTCs set from monitors on operations requiring Aftertreatment Hydrocarbon Injector ( AHI, 7th Injector) input, including: Moving Crystal Sublimations ( OBD15 and OBD16 emissions levels )
What Does the Engine Code P243C Mean? Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "2" in the second position means that this is a ISO/SAE controlled OBD-II (OBD2) DTC. "4" in the third character position in a DTC indicates that the auxiliary emission controls system is experiencing a malfunction.