DPF Delete with no programing
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Senior User
Joined: Jun 2006
Posts: 170
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DPF Delete with no programing
so what happens if I get rid of it, it goes into constant regen is what I hear...
and no one has found a way to trick it to turn off yet??....
Has anyone figured out what causes it?? Back pressure, heat,..... something has to trigger it on and off???
I know there are guys out there that have it off; so what are they doing jsut letting it eat fuel?
there has to be a way
If we figure it out then we can just run a tuner with no DPF....... Good sound, tunable on the fly, bigger tires, better MPG and MORE power
and no one has found a way to trick it to turn off yet??....
Has anyone figured out what causes it?? Back pressure, heat,..... something has to trigger it on and off???
I know there are guys out there that have it off; so what are they doing jsut letting it eat fuel?
there has to be a way
If we figure it out then we can just run a tuner with no DPF....... Good sound, tunable on the fly, bigger tires, better MPG and MORE power
Posting Guru
Joined: Jun 2006
Posts: 2,096
Likes: 0
"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.
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.
Elder User
Joined: May 2007
Posts: 650
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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.
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.
New User
Joined: Apr 2008
Posts: 1
Likes: 0
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.
Logistics Pro
Joined: Sep 2006
Posts: 4,863
Likes: 4
From: Airdrie Alberta
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.
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Posting Guru
Joined: Jun 2007
Posts: 1,501
Likes: 2
From: Henderson, NV
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.
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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