The rear line goes to a T-block that then goes to each rear wheel.
I made the new lines and followed the general route except for the right front. No lines go above the master cylinder.
It seems to me that even if the sensor had an issue, the code should be able to be cleared long enough to do the auto bleed using the scan tool.
Using a vac pump, I got it to have about 1/2 pedal. Maybe I just need to bleed more using this method or the gravity bleed.
Thanks