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1997 Toyota Avalon Question: check eng lite



eldraco, 3.0L V6, Florissant, MO, July 31, 2009, 18:19

had a scsn said o2 sensor sensor 1 bank 1,replaced sensor about 2 wks ago,lite went off 2 days came back on. scan also said heater circuit malfuntion.

2 Answers
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  • Answer #1

    July 31, 2009, 19:35

    Check for vacuum leaks for starters. Exactly which sensor did you replace? Was it the front or the rear? Does the code give you any more information?

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  • Answer #2

    patrick mannion from Greg Solow's Engine Room, July 31, 2009, 22:15

    Bank one on that engine is the rear bank of cylinders ensure the correct sensor was replaced. Heater circuit failure is common on these cars.

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