The 4.6L Ford F150 and also F250 Pickup comes equipped v 4 heated oxygen sensors (HO2S). This article 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 ideal front oxygen sensor is located on bank 1 and also before the catalytic converter.Bank 1 is the bank of cylinders that homes cylinders #1, #2, #3, and #4.Bank 1 is situated on the passenger side of the engine compartment. The best front oxygen sensor is likewise known as:HO2S11 (Heated Oxygen Sensor financial institution 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 bank 2 and also before the catalytic converter.Bank 2 is the financial institution of cylinders that residences cylinders #5, #6, #7, and also #8.Bank 2 is situated on the driver next of the engine compartment. The left prior oxygen sensor is additionally known as:HO2S21 (Heated Oxygen Sensor financial institution 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 ideal 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 behind oxygen sensor is situated on financial institution 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 likewise known as:HO2S22 (Heated Oxygen Sensor bank 2 Sensor 2).Bank 2 downstream oxygen sensor.Left downstream O2 sensor.

See more: How Many Catalytic Converters Are In A Toyota Corolla, Toyota Corolla Catalytic Converters From $92

Where come Buy The Oxygen Sensor and also Save

The ideal place to comparison shop and get an idea of just how much her Ford pickup"s oxygen (O2) sensor expense (and just how much you have the right to save) is here:


Not certain if the over oxygen (O2) sensor fits your details Ford pickup? Don"t worry, when you gain to the site, they"ll make certain it fits by questioning you the particulars of your vehicle. If that doesn"t fit, they"ll discover you the ideal one.

More Ford 4.6L, 5.4L Diagnostic Tutorials

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