how do i replace oxygen sensor on toyota 2000 xls

Asked by Sep 19, 2012 at 09:52 AM about the 2000 Toyota Avalon XLS

Question type: Maintenance & Repair

Check engine light came on -- went to auto zone - trouble codes were P 1150 x2 and P 1155 x 2 -
went to a repair shop.  Owner said it is a challenge to replace sensor(s).  Is this true?

1 Answer


Both of those codes are indicating a bad o2 sensor. Not usually difficult to replace, but yours has a heated o2 sensor which are normally expensive (150 bucks and up). Below shows the sensor that is causing you the grief.

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