Question about 2003 Toyota Avalon

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I have a 2003 Toyota Avalon that needs an oxygen sensor based on a code that says 02 sensor, bank 2 sensor 1. I was told this is on the passenger side upstream of the cat. Is this accessible from the engine compartment?

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No it is not u have to get under the car to acces the o2 sensor and make sure u do not strip the new one it will cost u alot more money.

Posted on Sep 07, 2010

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1 Answer

I need to replace bank 1 senor 1 on a 2005 Avalon and bank 1 senor 2.


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Sep 23, 2014 | 2004 Toyota Avalon

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2002 toyota avalon engine check light on P0078 and P007C


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P0051 HO2S Heated Oxygen Sensor -Control Circuit Low (Bank 2 Sensor 1)

P0052 HO2S Heated Oxygen Sensor -Control Circuit High (Bank 2 Sensor 1)

P0053 HO2S Heated Oxygen Sensor -Resistance (Bank 1 Sensor 1)

P0054 HO2S Heated Oxygen Sensor -Resistance (Bank 1 Sensor 2)

P0055 HO2S Heated Oxygen Sensor -Resistance (Bank 1 Sensor 3)

P0056 HO2S Heated Oxygen Sensor -Control Circuit (Bank 2 Sensor 2)

P0057 HO2S Heated Oxygen Sensor -Control Circuit Low (Bank 2 Sensor 2)

P0058 HO2S Heated Oxygen Sensor -Control Circuit High (Bank 2 Sensor 2)

P0059 HO2S Heated Oxygen Sensor -Resistance (Bank 2 Sensor 1)

P0060 HO2S Heated Oxygen Sensor -Resistance (Bank 2 Sensor 2)

P0061 HO2S Heated Oxygen Sensor -Resistance (Bank 2 Sensor 3)

P0062 HO2S Heated Oxygen Sensor -Control Circuit (Bank 2 Sensor 3)

P0063 HO2S Heated Oxygen Sensor -Control Circuit Low (Bank 2 Sensor 3)

P0064 HO2S Heated Oxygen Sensor -Control Circuit High (Bank 2 Sensor 3)

P0065 Air Assisted Injector -Range/Performance

P0066 Air Assisted Injector -Circuit Malfunction or Circuit Low

P0067 Air Assisted Injector -Circuit High

P0068 (MAP) Manifold Absolute Pressure /(MAF) Mass Air Flow - Throttle Position

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P0072 Ambient/Outside Air Temperature Sensor -Circuit Low Input

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P0079 Exhaust Valve Control Solenoid Circuit Low (Bank 1)

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1 Answer

Check engine light on my 02 toyota tundra stays on. Diagnostics say I need to replace heated oxygen sensor, bank 2 sensor 1.


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1 Answer

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2 Answers

Where is the oxygen sensor heater circuit 1 Bank 1 for a 03 Toyota Avalon XLS?


2695479270043892667s600x600q85.jpg
Above is the sensor itself on an 03 Avalon.

If the heater circuit has no activity check the relay located inside the engine room junction box JB shown below.

55316_04avalonjb_1.jpg

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2 Answers

Replacing bank 1 sensor 2 and bank 2 sensor 1 oxygen sensors


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