Do carburetor cars need oxygen sensor ?

[anhtho]

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

 

[insightful]

Some carbureted cars had electronically adjustable jets and used an O₂ sensor to maintain a stoichiometric fuel/air ratio for the catalytic convertor.

 

[anhtho]

Thanks insightful.
I have searched myself and find that some Honda car during the 1980s used programmable carburetor.

 

[insightful]

Here's a discussion on the demise of electronic or feedback carbs:

http://www.ford-trucks.com/forums/1...retors-lose-to-electronic-fuel-injection.html