2005 TB Ext 233,213mi. 4.2l V6
I bought the truck with the code on. I replaced the oil sending unit. I replace the VVT sensor twice and wiring pigtails. I replace the camshaft sensor and wiring pigtails. I cleaned the oil pickup tube, the oil pan and the bottom side of the engine. I also pulled the valve cover and clean the top side of the engine. I pulled about 2 cups of sludge out. I cleaned the valve cover and hoses . I also clean the intake on the Block and intake side . I replace some broken vacuum lines. Obviously new oil and filter twice. The engine is very quiet and has no knocks or rattles. The #$^& code is back on with the first drive cycle. Does this mean I need to replac or reprogram the ECM next. I did not see any update stickers in the door jamb. This is driving me crazy. I am trying to get it ready to pass Georgia emissions.