Ok, the sensor that plugs into my IACV has become disconnected and now I need to solder/crimp/whatever to reattach it. My question is this: Which wires running from the sensor (blue or yellow) attaches to which wire? (If you look about 8 inches down the two wires you will see there are blue plastic things attached to the wires, one of which is wider than the other..this may help to determine which goes to which.) Please help! I will attach pics if necessary.