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Author Question: Which exhaust gas reading indicates a good catalytic converter? (Read 126 times)

fbq8i

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on: Aug 13, 2021

Question 1

When observing O2S waveforms on a DSO on an OBD-II vehicle, which O2 sensor should have more oscillations in its O2S waveform?
◦ Upstream
◦ Downstream
◦ They will be equal
◦ None of these

Question 2

Which exhaust gas reading indicates a good catalytic converter?
◦ O2 is zero
◦ CO is zero
◦ Both A and B
◦ Neither A nor B


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Marked as best answer by fbq8i on Aug 13, 2021

Jane

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Reply #1 on: Aug 13, 2021

Answer 1

Upstream

Answer 2

CO is zero


fbq8i

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  • Posts: 527
Reply 2 on: Aug 13, 2021
Excellent

bdobbins

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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