Okay guys! I have recently had my ecm rebuilt. I received it back and it seemed to run really rough. (I changed my crankshaft sensor previous to realizing that my ecm was shot.) I thought that it might be the ecm again so I sent it back to the company that fixed it to verify that it was in working order. I was told that my ecm ran their test vehicle (01 Durango 5.9) for 45 min. Driving around and it idled for 15 min with no problems. So apparently my ecm is good. What else can I look for that will give me this no idle, super rough running, no power scenario?