Trying to get the wire color for the 02 sensor BEFORE the cat-verter. I could only get to the LEFT side sensor by doing a continuity check of the sensor wire TO the pcm. I can't get to the RIGHT side sensor. I wasted 15 bucks for an online electrical schematic for my truck.

06, f150 flareside, 4.6L, KN77, Gibson superflow, Evo