This looks like the issue. Bare wire at the o2 sensor was contacting the heat shield. I¡¯ve got the wiring harness put back together and installed. Will pick up a new sensor tomorrow and cross my fingers! Decided not to add the fuses to the main relay circuits. Wish I would have looked closer at the o2 sensors early on but didn¡¯t realize how it was all connected at the time.?
