Compression Ignition Addict
Join Date: Sep 2012
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You need a tuner that supports a DPF delete, your current tuner doesn't. Most tuners that support a DPF delete are called "race" tuners. They're not uncommon, but some models have gotten harder to find and more expensive lately. There are still a lot of choices out there though.
Or you can put your DPF and related sensors back on the truck.
Those are your options. A new tuner, or reinstall your stock exhaust. And you should probably take the previously offered advice and read up on the subject.