Wired up the O2 sensors. Connected the O2 sensor wires to extension wires with push on connectors. Ran the wires through the firewall above the O2 sensor location. Connected each wire to the O2 selection switch so the output of each O2 sensor could be observed on the J&S Electronics AFR monitor. Mounted the switch. Ran a ground wire from the O2 sensor J&S input to the firewall ground. Sketched out a wiring diagram for the O2 sensor installation.
