Re: Hunting down a P0174 problem
You are correct. When monitoring live data on 02 sensor, i tapped the wire trough, sure as heck, got a reading off of B1S2.
Just to be certain we are talking about the same location. I've attached a diagram. The section in red that houses S106, S107, and 109 is what you are/were referring to?
In your situation, did you just splice in a new section of wire? Or something else.