The 4.6L Ford F150 and F250 Pickup come equipped through 4 heated oxygen sensors (HO2S). This post contains the wiring diagrams of all 4 oxygen sensors.

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RF Oxygen Sensor (O2S11) Wiring Diagram

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RF Oxygen Sensor Troubleshooting Notes:

The best front oxygen sensor is located on bank 1 and before the catalytic converter.Bank 1 is the financial institution of cylinders that dwellings cylinders #1, #2, #3, and also #4.Bank 1 is situated on the passenger next of the engine compartment. The ideal front oxygen sensor is also known as:HO2S11 (Heated Oxygen Sensor bank 1 Sensor 1).Bank 1 upstream oxygen sensor.Right upstream O2 sensor.

LF Oxygen Sensor (O2S21) Wiring Diagram

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LF Oxygen Sensor Troubleshooting Notes:

The left former oxygen sensor is situated on financial institution 2 and before the catalytic converter.Bank 2 is the bank of cylinders that residences cylinders #5, #6, #7, and also #8.Bank 2 is located on the driver next of the engine compartment. The left prior oxygen sensor is likewise known as:HO2S21 (Heated Oxygen Sensor bank 2 Sensor 1).Bank 2 upstream oxygen sensor.Left upstream O2 sensor.

RR Oxygen Sensor (O2S12) Wiring Diagram

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RR Oxygen Sensor Troubleshooting Notes:

The best rear oxygen sensor is located on bank 1 and AFTER the catalytic converter.Bank 1 is the bank of cylinders that homes cylinders #1, #2, #3, and #4.Bank 1 is located on the passenger next of the engine compartment. The appropriate rear oxygen sensor is additionally known as:HO2S12 (Heated Oxygen Sensor bank 1 Sensor 2).Bank 1 downstream oxygen sensor.Right downstream O2 sensor.

LR Oxygen Sensor (O2S22) Wiring Diagram

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LR Oxygen Sensor Troubleshooting Notes:

The left rear oxygen sensor is located on bank 2 and also AFTER the catalytic converter.Bank 2 is the financial institution of cylinders that houses cylinders #5, #6, #7, and #8.Bank 2 is situated on the driver next of the engine compartment. The left behind oxygen sensor is additionally known as:HO2S22 (Heated Oxygen Sensor bank 2 Sensor 2).Bank 2 downstream oxygen sensor.Left downstream O2 sensor.

See more: 4 Centimeters Equals How Many Meters, 4 Centimeters To Meters Conversion

Where come Buy The Oxygen Sensor and Save

The ideal place come comparison shop and get one idea of just how much your Ford pickup\"s oxygen (O2) sensor price (and just how much you have the right to save) is here:


Not sure if the over oxygen (O2) sensor fits your specific Ford pickup? Don\"t worry, as soon as you obtain to the site, they\"ll make sure it fits by asking you the particulars of your vehicle. If that doesn\"t fit, they\"ll find you the appropriate one.

More Ford 4.6L, 5.4L Diagnostic Tutorials

If you took pleasure in and/or found this ‘How To’ short article helpful, I have actually written several more Ford 4.6L, 5.4L specific test articles. Girlfriend can uncover them all in this index: Ford 4.6L, 5.4L index Of Articles