Car Problem Reports

Toyota Avalon Check Engine Light Due to Failed Oxygen Sensor Component

 
Toyota Avalon Problem
67 Reports
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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006

Average Mileage: 105,888 mi (26,777 mi - 267,000 mi)

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The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.

 

  • Visitor, , 98,000 mi

    My check engine light is on. They say it is the o2 sensor. I was told that if don't properly place on your gas cap this could happen. However, I do want to fix the problem. As a woman, I have learned to not much trust many repair shops. How much is too much for this job.

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  •  Rookie

    Yes, I have this problem. I purchased an OBDII tool online. When it is time for inspection, I hook up the tool, turn off the MIL light and codes, drive 100 miles, and it passes. Tool is only about $50. There is nothing wrong with the car, runs great, think this is a scam to get you to bring it to a dealer and they charge you $350-$700 to repair, and it still comes on. Then they want to tell you it is something else, and charge you again. Happened to my neighbor.

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  •  Rookie

    Check engine light on - fix described as "replaced air fuel ratio sensor and cleared code in computer" - $224 labor, $242 parts cost, $22.40 shop supplies. Is this reasonable?

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  • Visitor, , 67,000 mi

    I had a check engine light with an error code for bank 1 sensor 2; changed the sensor and performed soft computer reset. within 10 minutes light illuminated again; error code for same sensor.

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  • Failed oxygen sensor. I just ignored it. The check engine light finally stopped coming on about 6 months ago.

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  • Visitor, , 90,000 mi

    replaced sensor

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  •  Rookie

    Had to pay $250 to change the sensor........ Sucked!

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  • Visitor, , 267,000 mi

    Check engine light came on few months ago and it was O2 sensor related.

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  • Visitor, , 142,000 mi

    Check engine light came on. No performance issues that I could tell. They replaced the B1S1 O2 Sensor. The Sensor was welded into place on to the manifold over time and it was really inaccessible. It required a lot of time and labor to complete the repair however it was not done at a dealer. It was done at a small shop.

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  • Visitor, , 80,000 mi

    Car still runs fine. To eliminate check engine light from staying on, disconnect positive battery cable for 5 minutes, reconnect, then you can dive car (to inspection station) without light appearing for about 5 key cycles.

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