the easiest way to preent the clogging on 03-04 models is to remove the up pipes and block the exaust intake to the EGR cooler the egr will still function as normal the only bad part is the easiest way to get the up pipes out is to remove the tranny but it can be done on low mileage trucks but...
check the connections on the IDM in side the driver side fender well how many miles? what type of programmer or is it a chip in the prossesor by the e-brake pedal let me know and do you still have the codes