Originally Posted by chittychittybangbang
100% yes it'll throw error codes. I don't even think it would run well without it since the computer might send the car into limp mode if it doesn't get expected feedback from the various sensors. You have to have an engine tuner delete it in the software. Part of it is that the exhaust self clean cycle will be dumping fuel into the exhaust without the DPF in place. Here is more on the system: http://www.myturbodiesel.com/1000q/D...AQ-VW-Audi.htm
FYI, the car's emissions will go way up and if you have state visual or smoke inspection you'll definitely fail.
You mentioned having the engine tuner remove the software for it. So after you do this can you remove the DPF? Also the whole reason I'm inquiring about this topic is because I plan on an ECU re-flash for the 140-170hp increase. A lot of the manufactures recommend a DPF delete. Is this a physical delete or software one?