This effect is also expected to lengthen the time between DPF regenerations and reduce the fuel consumption penalty that is associated with soot loading and regeneration. This study investigated the effect of FAME content, up to 50% v/v (B50), in diesel fuel on the DPF regeneration frequency by repeatedly running a Euro 5 multi-cylinder bench 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. CAUTION: The manual regeneration of the DPF produces high temperatures in the exhaust system. Due to high exhaust gas temperatures, always follow the Workshop Manual Cautions, Warnings, and procedures when performing a manual DPF regeneration. Frequency of Regeneration The mileage between regenerations varies significantly, depending on vehicle INJ_Q_TOT for all cylinders are around .13grms, and CYL_BAL for cylinders 1-5&8 @ .00grm, while cylinder #6 @.02gr and #7 @-.01grm. Attempted to perform a dymanic manual regen; at beginning of regen, DPF load % was 46%. After regen, this number droped to 40%, but after driving for 10 miles DPF load % increased to 70% before returning to shop. Q7byw. I have the same 1.5 diesel engine. Recently, I have noticed the car feels down on power going up hills and very much so when a dpf regen is taking place. To complicate matters about 3 weeks ago I filled it with petrol by mistake and had to get the tank drained. Coincidentally, the frequency of the dpf regens has increased. Although this is a very short distance, that indicates that regeneration frequency is of paramount importance in assessing vehicle emissions compliance towards the regulatory limit. 4. Conclusions. The present work assessed the effects of DPF regeneration on emissions of a diesel Euro 6 d-temp car under real driving and laboratory conditions Middle of last week however the EML came on. Plugged in my OBD and the code same up as DPF regeneration frequency - I interpreted as regen cycle hadn't kicked in for a while. So this weekend I stuck in a bottle of Wynns DPF cleaner and did a massive burn round the M25. I mean massive - 70mph ave for 40-60 mins. RPMs hovering around 2k and above. DPF regeneration frequency. 2007.5 LMM Dually 4x4 non stop towing constantly getting an engine light DTC is P2459 my dealer buddy gave me a list of the codes seems this particular code is Diesel Particulate Filter Regeneration Frequency ( To High ) always been towing always with load so running relatively high egt's as compared to regular Active Regeneration. Passive regeneration is part of normal engine operation, however active regeneration requires the engine to take action. For example, a truck fully loaded with 80,000 pounds moving down the highway will create enough heat in the engine for a chemical reaction to occur—which is passive regeneration.

mazda 6 dpf regeneration frequency