I have recently done several upgrades to my 2011 ram 2500 diesel. I completely replaced the exhaust from the turbo back, eliminating the exhaust filter and cat. I also did a egr and throttle valve delete, installed a new cold air intake and installed a predator 2 tuner. My problem is that it now reads regeneration required. How do I get around this as the sensors are no longer plugged in to read particultes. I have seen these exact upgrades on youtube but they never say what to do with the sensors or what to do when a regeneration is needed. The tuner will not delete these codes. I'm sure it's because I eliminated the filter and cat. Please help as I can't drive it.