How to Check and Replace Oxygen and Air/Fuel Sensors on 1997 through 2001 Toyota Avalon?

To check the oxygen sensor, locate the electrical connector and insert pins into the signal and ground terminals, then use a voltmeter to monitor the voltage signal as the engine warms up. The sensor should fluctuate between 0.1 to 0.9 volts in closed-loop mode. Inspect the heater resistance and verify it is receiving battery voltage. If the sensor fails any tests, replace it. To replace the sensor, disconnect the battery, unplug the electrical connector, unscrew the sensor from the exhaust manifold, apply an anti-seize compound to the threads, and install the new sensor. The air/fuel sensor cannot be checked for voltage without a special tool, but the resistance of the heating element can be checked with an ohmmeter. To replace the AF sensor, disconnect the battery, unplug the electrical connector, unscrew the sensor from the exhaust manifold, apply anti-seize compound to the threads, and install the new sensor.

What Is the Role of Oxygen Sensors and Air/Fuel Sensors in OBD-II Engine Management Systems and How Do They Function on 1997 through 2001 Toyota Avalon?

First off, all vehicles are equipped with On-Board Diagnostics II (OBD-II) engine management systems that include oxygen sensors and air/fuel sensors to verify the accuracy of the feedback loop between the oxygen sensor and the PCM. These sensors are placed before and after the catalytic converter to help control the efficiency of the converter. In fact, Camry models with four-cylinder engines have one oxygen sensor and one air/fuel sensor, while V6 engines have three sensors. Also, the main sensors are located in the exhaust manifolds, while the secondary sensor is placed after the catalytic converter. It is also important to note that the oxygen sensors monitor the oxygen in the exhaust stream to determine the air-to-fuel ratio, while the air/fuel sensors send feedback about alterations. Also, proper operating temperature, electrical connections, outside air supply, and use of unleaded fuel are important for the sensors. Finally, the silicone boot must be installed carefully to prevent damage and ensure proper function.

How to replace an oxygen sensor on 2007 through 2015 Toyota Avalon?

The manufacturer refers to the upstream sensor as the air-fuel ratio sensor and the downstream sensor as the oxygen sensor. When replacing the oxygen sensor, it may be difficult to loosen when the engine is cold. To avoid damaging the sensor, start and run the engine for a minute or two before attempting to loosen it. Disconnect the cable from the negative battery terminal before starting the replacement process. For the downstream sensor(s), raise the vehicle, remove the lower engine cover, and unplug the electrical connector. For the upstream sensor, it can be replaced without raising the vehicle. Unplug the sensor electrical connector and unscrew the sensor from the exhaust manifold(s) or exhaust pipe using a slotted socket. Apply anti-seize compound to the threads of the sensor and ensure new sensors already have this compound coated. If reusing an old sensor, recoat the threads. Install the sensor, tighten it securely, and reconnect the electrical connector.

Genuine Toyota Avalon Oxygen Sensor

Oxygen O2 Sensor

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38 Oxygen Sensors found

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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-33210
$172.33 MSRP: $244.99
You Save: $72.66 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Air Fuel Rat
- Manufacturer Note: RR
- Position: Rear
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2021 Toyota Avalon | Limited, XLE, XSE | 4 Cyl 2.5L | A25AFXS; A25AFXS; AXXH50L-AEXGBA, AXXH50L-AEXPBA, AXXH50L-AEXQBA
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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-41040
$199.04 MSRP: $285.41
You Save: $86.37 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Wide Range Air Fuel Ratio; Oxygen Sensor
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-06250
$172.56 MSRP: $245.32
You Save: $72.76 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Air Fuel Rat
- Manufacturer Note: FR
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2022 Toyota Avalon | Limited, XLE, XSE | 4 Cyl 2.5L | A25AFKS, A25AFXS; A25AFKS, A25AFXS; AXXA55L-AEZGBA, AXXA55L-AEZPBA, AXXH50L-AEXGBA, AXXH50L-AEXPBA, AXXH50L-AEXQBA, AXXH51L-AEXGBA, AXXH51L-AEXPBA, AXXH51L-AEXQBA
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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-06120
$171.16 MSRP: $243.33
You Save: $72.17 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Air Fuel Ratio
- Replaces: 89467-48190
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2013-2018 Toyota Avalon | Limited, XLE | 4 Cyl 2.5L | 2ARFXE; 2ARFXE; AVX40L-AEXGBA, AVX40L-AEXPBA
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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-41030
$199.04 MSRP: $285.41
You Save: $86.37 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Wide Range Air Fuel Ratio; Oxygen Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-41021
$201.02 MSRP: $288.25
You Save: $87.23 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Air Fuel Ratio; Oxygen Sensor
- Replaces: 89467-41020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1997-1999 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX10L-AEPGKA, MCX10L-AEPNKA, MCX10L-AESGKA, MCX10L-AESNKA
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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-06130
$193.24 MSRP: $277.10
You Save: $83.86 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Air Fuel Ratio
- Manufacturer Note: LH
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2015 Toyota Avalon | Limited, XLE Premium, XLE Touring Or Touring, XLS | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX30L-AETGKA, GSX30L-AETPKA, GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA
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Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-07030
$174.34 MSRP: $249.99
You Save: $75.65 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Air Fuel Ratio; Oxygen Sensor, Sensor, Upper Oxygen Sensor
- Manufacturer Note: LH
- Position: Driver Side
- Replaces: 89467-33170
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2012 Toyota Avalon | Limited, XL, XLS | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA
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Toyota Avalon Oxygen Sensor
Part Number: 89465-06250
$118.32 MSRP: $168.99
You Save: $50.67 (30%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen; Lower Oxygen Sensor, Rear Oxygen Sensor
- Manufacturer Note: LH
- Position: Driver Side
- Replaces: 89465-33360
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2015 Toyota Avalon | Limited, XL, XLE Premium, XLE Touring Or Touring, XLS | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA, GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA
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Toyota Avalon Oxygen Sensor
Part Number: 89465-33180
$117.40 MSRP: $166.33
You Save: $48.93 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen
- Position: Front
- Replaced by: 89465-06100
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1996-1999 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK
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Toyota Avalon Oxygen Sensor
Part Number: 89465-07080
$118.32 MSRP: $168.99
You Save: $50.67 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen; Lower Oxygen Sensor, Rear Oxygen Sensor
- Manufacturer Note: RH
- Position: Passenger Side
- Replaces: 89465-33420
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2015 Toyota Avalon | Limited, XL, XLE Premium, XLE Touring Or Touring, XLS | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA, GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA
View related parts
Toyota Avalon Oxygen Sensor
Part Number: 89465-07040
$112.21 MSRP: $159.17
You Save: $46.96 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Oxygen Sensor
Part Number: 89465-06320
$110.20 MSRP: $155.63
You Save: $45.43 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen; Lower Oxygen Sensor, Rear Oxygen Sensor
- Manufacturer Note: LH
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2018 Toyota Avalon | Limited, XLE Premium, XLE Touring Or Touring | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA
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Toyota Avalon Oxygen Sensor
Part Number: 89465-33080
$117.75 MSRP: $166.29
You Save: $48.54 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen
- Manufacturer Note: FRONT
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-1997 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK
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Toyota Avalon Oxygen Sensor
Part Number: 89465-06260
$111.26 MSRP: $157.12
You Save: $45.86 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen; Lower Oxygen Sensor, Rear Oxygen Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2013-2018 Toyota Avalon | Limited, XLE | 4 Cyl 2.5L | 2ARFXE; 2ARFXE; AVX40L-AEXGBA, AVX40L-AEXPBA
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Toyota Avalon Oxygen Sensor
Part Number: 89465-06330
$122.43 MSRP: $174.99
You Save: $52.56 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen; Lower Oxygen Sensor, Rear Oxygen Sensor
- Manufacturer Note: RH
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2018 Toyota Avalon | Limited, XLE Premium, XLE Touring Or Touring | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA
View related parts
Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-07010
$199.04 MSRP: $285.41
You Save: $86.37 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Air Fuel Ratio; Oxygen Sensor, Sensor
- Manufacturer Note: LH
- Position: Driver Side
- Replaces: 89467-33090
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2008 Toyota Avalon | Limited, XL, XLS | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA
View related parts
Toyota Avalon Oxygen Sensor
Part Number: 89465-06030
$117.40 MSRP: $166.33
You Save: $48.93 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Oxygen
- Position: Front
- Replaced by: 89465-06100
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-1999 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK
View related parts
Toyota Avalon Air Fuel Ratio Oxygen Sensor
Part Number: 89467-0E190
$172.56 MSRP: $245.32
You Save: $72.76 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Air Fuel Ratio
- Manufacturer Note: LH
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2018 Toyota Avalon | Limited, XLE Premium, XLE Touring Or Touring | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA
View related parts
Toyota Avalon Sensor, Air Fuel Rat
Part Number: 89467-06280
$159.81 MSRP: $227.19
You Save: $67.38 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Lower Oxygen Sensor, Oxygen Sensor
- Manufacturer Note: RR
- Position: Rear
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2022 Toyota Avalon | Limited, XLE, XSE | 4 Cyl 2.5L | A25AFXS; A25AFXS; AXXH51L-AEXGBA, AXXH51L-AEXPBA, AXXH51L-AEXQBA

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Toyota Avalon Oxygen Sensor

Oxygen Sensor is one of the relevant and significant components in the Toyota Avalon vehicles used for the measurement of the air/fuel mixture in the engine exhaust for better performance and less emission. They instantly detect the left-over optimum unburned oxygen and proportionally compare that to the atmospheric level in order to create a voltage signal which in turn directs the engine control computer towards the right adjustment as a mixture. The ideal Avalon models have two oxygen sensors; the first one is before the catalytic converter, while the second one is after it. These sensors work at high temperatures and may oxidize or contaminate themselves, thereby making the engine emit large amounts of gases and burning fuel wastefully. They may include air/fuel ratio sensors which are newer in some Avalon vehicles, giving a broader range of measurements to get better readings. This paper will discuss and analyze the requirement of having properly functioning oxygen sensors and the regular maintenance needed for the Toyota Avalon.

If you are in demand for superior quality and affordable OEM Toyota Avalon Oxygen Sensor, then shop with us! We own a wide range of the reduced-priced genuine Toyota Avalon Oxygen Sensor. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Avalon Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor
89465-06030
Q: How to Check and Replace Oxygen and Air/Fuel Sensors on 1997 through 2001 Toyota Avalon?
A: To check the oxygen sensor, locate the electrical connector and insert pins into the signal and ground terminals, then use a voltmeter to monitor the voltage signal as the engine warms up. The sensor should fluctuate between 0.1 to 0.9 volts in closed-loop mode. Inspect the heater resistance and verify it is receiving battery voltage. If the sensor fails any tests, replace it. To replace the sensor, disconnect the battery, unplug the electrical connector, unscrew the sensor from the exhaust manifold, apply an anti-seize compound to the threads, and install the new sensor. The air/fuel sensor cannot be checked for voltage without a special tool, but the resistance of the heating element can be checked with an ohmmeter. To replace the AF sensor, disconnect the battery, unplug the electrical connector, unscrew the sensor from the exhaust manifold, apply anti-seize compound to the threads, and install the new sensor.
Air Fuel Ratio Oxygen Sensor
89467-41011
Q: What Is the Role of Oxygen Sensors and Air/Fuel Sensors in OBD-II Engine Management Systems and How Do They Function on 1997 through 2001 Toyota Avalon?
A: First off, all vehicles are equipped with On-Board Diagnostics II (OBD-II) engine management systems that include oxygen sensors and air/fuel sensors to verify the accuracy of the feedback loop between the oxygen sensor and the PCM. These sensors are placed before and after the catalytic converter to help control the efficiency of the converter. In fact, Camry models with four-cylinder engines have one oxygen sensor and one air/fuel sensor, while V6 engines have three sensors. Also, the main sensors are located in the exhaust manifolds, while the secondary sensor is placed after the catalytic converter. It is also important to note that the oxygen sensors monitor the oxygen in the exhaust stream to determine the air-to-fuel ratio, while the air/fuel sensors send feedback about alterations. Also, proper operating temperature, electrical connections, outside air supply, and use of unleaded fuel are important for the sensors. Finally, the silicone boot must be installed carefully to prevent damage and ensure proper function.
Air Fuel Ratio Oxygen Sensor
89467-06120
Q: How to replace an oxygen sensor on 2007 through 2015 Toyota Avalon?
A: The manufacturer refers to the upstream sensor as the air-fuel ratio sensor and the downstream sensor as the oxygen sensor. When replacing the oxygen sensor, it may be difficult to loosen when the engine is cold. To avoid damaging the sensor, start and run the engine for a minute or two before attempting to loosen it. Disconnect the cable from the negative battery terminal before starting the replacement process. For the downstream sensor(s), raise the vehicle, remove the lower engine cover, and unplug the electrical connector. For the upstream sensor, it can be replaced without raising the vehicle. Unplug the sensor electrical connector and unscrew the sensor from the exhaust manifold(s) or exhaust pipe using a slotted socket. Apply anti-seize compound to the threads of the sensor and ensure new sensors already have this compound coated. If reusing an old sensor, recoat the threads. Install the sensor, tighten it securely, and reconnect the electrical connector.