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If your going down the LL track then do not have any contact with the manufacturer concerning a buyback. That will complicate things and possibly nullify your LL case. This is what I got from my LL attorney. According to him it's an 'either/or' kind of thing.
I completely agree. My dealer tech swapped out the factory orange/no strip AF with a new OEM orange/no strip AF, and they replaced both the MAFS and the boost tube with zero improvement. As I've mentioned in earlier posts, the only that has 'fixed' my regen issue so far is replacing the DPF...
I think you should look for another dealer that takes these kinds of things seriously instead of bullshi**ing you. I had the same issue and my dealership/service manager took it very seriously. They tried a number of things to remedy it (opened 3 STAR cases that I'm aware of) and finally...
I have run the gamut with my truck. MAFS, air filters, boost tube, fuel system pressure test, and fuel pump eval with no changes. They replaced the DPF last month and it now seems to be operating properly. Peeking through the pipe the original one "looked" okay, too, but who knows what the guts...
I didn't 'convince' Ram to do anything. I did have multiple P2459 codes (frequent regens), and a very good service manager/mechanic and we are keeping at it. It seems to be functioning properly now, but I won't be satisfied for another 20 -30k more miles.
You might have a similar truck to mine...
After everything this truck has put me through I'll take whatever good news I can get. This has been a very frustrating and confounding series of events.
Follow up to post #191. Yesterday morning the EVIC was at 10 -12% upon startup, it then went to 30ish on the trip to my jobsite. I hauled 2 loads of gravel in my dump trailer and marveled at the passive regen taking it down to zero. I haven't seen that in a long time. I'm doing a 200 mile+ round...
For what it's worth, I've run the gamut with my '22 HO CTD. I drive 80:20 highway/town, tow regularly and had no regen problems until about 20,000 miles, then constant regens like you're experiencing, with equally constant fuel dilution of my crankcase. Here's what the dealership tried...