Join Date: Jan 2009
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Fab up a delet pipe. The only sensor you need in the exhaust is the one 02 sensor. There are three other temp sensors. You will need to disconnect those and make a "fooler". All they are are 330 OHM or 470 OHM resistors. I left the actual sensor in my old dpf pipe, cut the connector off, and made three 330 OHM foolers. Leave the Differential Pressure sensor (the one with the tubes running to it) connected electrically, but take off the rubber lines going to it. It will run just fine like this. This will fool the ECM to think that it is 1200 deg in the exhaust and prevent it from going in to regen. You can also make a fooler for the differential pressure sensor pretty easy with two resistors(its a three pin connector), but since its not necessary I didnt make one. To Recap.
4" pipe - replaces cat and DPF, You can put a turn down, or just connect it to the stock muffler
02 sensor - Pull the one 02 sensor from between the cat and dpf and put it in a similar location on your 4" delete pipe
3 temp sensors - cut the pigtail off on all three, solder in a 330 OHM resistor from radioshack, heat shrink and reinstall
Differential Pressure Sensor - (the one with the tubes running to it, it is bolted on the transmission) Leave electrically connected, disconnect the two rubber lines going to it.
DIY DPF Delete complete.
Provided you follow these steps your truck will not go in to limp mode, dont worry.
EGR Deletes are even easier. Machine 4 plates to fit the intake where the valve bolts on, and two for the cooler assembly. Assemble plates on intake and exhaust. You must remove the intake tube, and pull out the butterfly valve. Remove the 6 bolts that hold it to the head, remove the silicone intercooler hose clamp. Rotate so you can see inside from the intercooler side. Remove two torx screws on the butterfly, and pull out round butterfly plate. the only thing you might need in addition to some 1/4" flat stock for the plates is a piece of 3/4" heater hose. When you remove the cooler, you are left with two cooling system lines that have to be removed. Just connect the two with some 3/4" Heater hose. When I did mine, there was a piece of pipe with two heater hose connections on the end was about the right size, so I just used that. Hope this helps. It may sound complicated, but its really not hard at all. Take your time, and make sure you hook up everything properly after you are done just to be sure.