Ok guys I finally decided to become part of the forum. I have been able to search and find a ton of advise just by being a guest and searching. With that said you guy give great pointers and have helped me a ton with other dodge trucks.
Now this is my story...I just bought a 96 1500 ex cab 5.9 (360) 4x4 for a killer price. At the moment I am using as my DD since I just sent off my cummins to be painted. I just replaced the plenum, 180 stat, new plugs wires, cap, rotter, and cam sensor. The truck ran fine before I did this except, burned oil (PG) and bad fuel mileage. Now I still am burning oil fuel mileage seems to be better (will know later) and truck idles smoother. When I put under a load or pull a trailer I get bad manifold backfire. So, why the backfire and why am I still burning oil??? No I have not replaced the O2 or have I checked the cat. I get a code 43 if that helps. Thanks for reading guys.