2007 F150 4.6 Upstream Oxygen Sensor Replacement (04-08 f150)

2007 F150 4.6 Upstream XL3F-9f472-AA Oxygen Sensors Replacement. The passenger side upstream connector is difficult to get to but can get to it behind fender well. It is best to remove the wheel well.  I will installing an O2 harness extender for passenger side.


NOTE: 4.6, 5.4 O2 sensors - #1 cylinder on driver side so B1 Driver side B2 passenger
B1S1 Driver Upstream      B2S1 passenger Upstream
B1S2 Driver Downstream B2S2 passenger Downstream

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