No Codes! No Lights!

[onebadapple]

Please keep in mind these nine or so hour apart regens are an actual regen where the idle fuel consumption is about 3 to 4 GPH, the hot exhaust light is on when stopped and I can disable it with the switch. This is not the problem, I can live with this although two years ago with it as a company truck I would see this about once a week or less!
This “halfway” regen goes on for about five or six hours between these and I cannot disable it with the switch but I can stop it with the cruise set button while stopped. While in this “halfway”mode the idle is at 750 rpm and idle fuel is about 2 to 2.2 GPH and no hot exhaust light and the throttle responds like it’s in regen. Hit the set button the rpm drops to 700 from 750, idle fuel goes to .7 or .8 GPH,(it’s out of it) tap the brake or clutch the idle drops to 650, idle fuel goes to .6 GPH, in ten seconds or so you hear the engine change tone and the idle fuel goes to 1.8 GPH still idling at 650 rpm (it’s back in). This is the problem.