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Message: [QUOTE="Bigharm27, post: 1443974, member: 21167"] Put my truck back to stock after ****** to trade in on 17. Had to replace def injector and supply line because tip on def injector broke and supply line melted to exhaust. Also had to replace nox sensor and module because of hard code. drove fine for couple weeks and had a check engine light on. Scanned and found codes for excessive time to enter closed loop regen control and closed loop regen control at limit- temp too low. Also has a *** overload, drive to clean message on dash on crank up. Performed forced regen and found that the temps on all four sensors would not go over 400 degrees. Put heat gun up to *** and temps are pretty close to sensors. But when regen started it would go up to 400 degrees then drop down to 175 and then climb back up. So, on these 6.7s do they have a seperate injector for regen or do the injectors supply more fuel while in regen? Couldnt find any solid info on the net, thinking it could be needing a reflash [/QUOTE]

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