Engine Mgmt., Fuel, Spark, EGTs, & Air/Fuel Ratios
Plain and simple. While under my car tightening the power steering pump, i noticed that i have two o2 sensors. One in the manifold, and one further down on the down pipe. I have no cat, don't know if that makes a difference or not. The manifold o2 is plugged in, but the downpipe o2 is not. Its...