Well, here we go again. No power, and burnin lots of fuel. Does anyone know what makes a eec-iv speed density system go into closed loop control, is it temp or just after a certain period of time. My o2 sensors are reading super rich, but I don't think the computer is trying to compensate for it. All my electrical connections check out, and the computer isn't throwing any codes. 4 MILES PER GALLON, @ $5.00 a gallon, do the math, I NEED HELP!