O2 sensor - disconnect?

Current news reports (in the UK) state that some petrol stations might be supplying contaminated lead-free petrol, which damages the O2 sensor and possibly the cat converter.
So what happens if the lead from the sensor is merely disconnected at the ECU end of the cable?
After all this is just one of many inputs to the engine management system. ISTR that engines ran quite well before the O2 sensor was invented
David
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

The system will run at "full rich", wasting fuel, possibly dilute the oil and fouling plugs, run terrible, and it won't protect the O2 sensor from the bad fuel.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.