Which o2 sensor is with the heating? Is it the pre-cat or post-cat?

Asked by Jul 16, 2017 at 09:26 PM about the 2007 Honda Accord

Question type: Maintenance & Repair

Hi my father has an Honda Accord 2007 vti. I need
help identifying which o2 sensor i need to replace, i
spoke to my mechanic and he says the one with
the heating? Can someone please help me?

2 Answers


they both do pre cat is an a/f sensor [sensor 1] post cat is an o2 sensor [sensor 2 ] depending on the code will tell you what to replace

Hay, thank you so much for replying. So when i took the car out to honda, they printed out the faults, on that sheet it says o2 sensor, is what your saying the o2 sensory means its the post cat?

Your Answer

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