1Richa
New Member
Looking for some help obtaining schematic for 2012 expedition harness to check wiring from PCM to 02 sensors. Also any help in troubleshooting code. Replaced right side cat ( not OEM) , Also all 02 sensors ( motorcraft) it lasted for about 300 miles and tripped code again. pressure check radiator and held pressure for 2 hours, no misfires. Car has intermittent rough idle at stoplight sometimes.
