Do carburetor cars need oxygen sensor ?

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Discussion Overview

The discussion revolves around the presence and purpose of oxygen sensors in carbureted cars, exploring whether they are necessary and how they function in such vehicles. The scope includes historical context and technical aspects related to fuel/air ratios and emissions control.

Discussion Character

  • Exploratory, Technical explanation, Historical

Main Points Raised

  • One participant questions the necessity of O2 sensors in carbureted cars and seeks clarification on their purpose.
  • Another participant notes that some carbureted cars had electronically adjustable jets that utilized O2 sensors to maintain a stoichiometric fuel/air ratio for catalytic converters.
  • A different participant mentions finding examples of Honda cars from the 1980s that used programmable carburetors.
  • A link is provided to a discussion about the decline of electronic or feedback carburetors compared to electronic fuel injection.

Areas of Agreement / Disagreement

Participants express varying viewpoints on the role of O2 sensors in carbureted cars, with no consensus reached on their necessity or functionality.

Contextual Notes

The discussion includes references to specific historical examples and technological developments, but does not resolve the broader implications of these points.

anhtho
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Hi all,

I just hear from a friend that in carburetored cars there are still O2 sensors (not all cars). I not sure the purpose of O2 sensor in this case. Could anyone help ?

Thanks
 
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Some carbureted cars had electronically adjustable jets and used an O2 sensor to maintain a stoichiometric fuel/air ratio for the catalytic convertor.
 
Thanks insightful.
I have searched myself and find that some Honda car during the 1980s used programmable carburetor.
 

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