"Has anyone figured out what causes it?? Back pressure, heat,..... something has to trigger it on and off???"
Its been reported that if you take it off without a regen deleting program, its the drive cycle thing that triggers the regenerations and the lack of expected heat in the system from the regeneration that won't shut it off, that causes the grief.
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Powerstroking Seven T444Es, one VT365 and one 6.0. Also four DT466s, one DT360 and a Mercedes MBE906.
I'm doing my part to reduce food imports, control rising food costs and help feed the children, my trucks run on 100% petroleum diesel. What are you doing?
DPF backpressure is the parameter that the regeneration cycle mainly focuses on. But it reads other parameters such as the 4 EGT sensors (yes 4, 3 in the exhaust and one just after the exhaust manifold), boost pressure, rpm, engine temps, etc.
If someone just takes off the DPF they will experience the constant regen. This is basically a fail safe for the truck, so you don't blow out the DPF. If within a certain amount of time or miles the truck does not go through a regen the cycle will automatically kick on, and with the appropriate sensor readings it will never shut off.
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08 F-350 Cowboy Edition 6.4 4x4 CC DRW 6-speed w/3.73 gears
Programmed with SCT LiveWire with DPF delete tune
Full 5" DPF & Cat delete pipe from Bay Area Diesel
6" Aussie stacks painted black
Random other goodies
More like several hundred dollars on a programmer than just a couple wires.
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08 F-350 Cowboy Edition 6.4 4x4 CC DRW 6-speed w/3.73 gears
Programmed with SCT LiveWire with DPF delete tune
Full 5" DPF & Cat delete pipe from Bay Area Diesel
6" Aussie stacks painted black
Random other goodies
i straight piped my 08, and every approx.1300 km it went into regen and i went to the dealer and kept getting dpf resets, the regen mode triggers when it reads to much back pressure, my dads truck has the dpf out but still has the muffler and it never has went into regen mode yet and he put on atleast 3000-4000km.
i straight piped my 08, and every approx.1300 km it went into regen and i went to the dealer and kept getting dpf resets, the regen mode triggers when it reads to much back pressure, my dads truck has the dpf out but still has the muffler and it never has went into regen mode yet and he put on atleast 3000-4000km.
If true, you're better off just sucking it up and buying the programmer to get the regen cycle eliminated, save some money in the long run.
DPF backpressure is the parameter that the regeneration cycle mainly focuses on. But it reads other parameters such as the 4 EGT sensors (yes 4, 3 in the exhaust and one just after the exhaust manifold), boost pressure, rpm, engine temps, etc.
If someone just takes off the DPF they will experience the constant regen. This is basically a fail safe for the truck, so you don't blow out the DPF. If within a certain amount of time or miles the truck does not go through a regen the cycle will automatically kick on, and with the appropriate sensor readings it will never shut off.
In addition, it looks a total milage since last regen, their is a parameter that will cause it to go into regen if no regens have taken place in X amount of miles.
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