where is the heated oxygen sensor bank 1 sensor 2 located on a 2009 chevy aveo ls?and where is the cheapest part

Asked by Allen Sep 27, 2016 at 04:18 PM about the 2009 Chevrolet Aveo 5 LS Hatchback FWD

Question type: Maintenance & Repair

my check engine light is on.auto zone after checking said it was the heated oxygen sensor(h02s)heater resistance-bank 1 sensor 2.i need a cheap replacement because i,m on ssdi

4 Answers

59,755

Bank one (heated) is always the o2's before cats. But I always like to check why it is setting this code and I find that many times the o2's are good and it is a vacuum leak or dirty MAF or IACV sensor or a bad spark plug or plug wire or dirty PCV valve. I would have or check these out before throwing good money away.

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59,755

Hey I made a mistake here on my post before. Bank 1 sensor 2 is after cat not before cat sorry I ran that back through my mind and realized I had said that wrong.

7 people found this helpful.
50

I have a 2009 Aveo and its thrown the same code. I checked resistance at the heater circuit and it came back at 11.7 ohms. so i believe the heater element is still good. My car does have a slight miss under load at about 1900/2000 rpm. You think a bad spark plug or dirty MAF could be causing that and falsely throwing the heater circuit code?

5 people found this helpful.
60

Send me the picture of both sensor of chevrolet aveo 2006 sedan... 1.6 LT...

6 people found this helpful.

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