coincidence or possible?(short read)

1994 Integra LS....
Drove 207,000 miles on regular 87 octane gas
Had a slight cold idle rev.
Mechanic suggested some Premium 93 Octane
3 tankfuls later the check engine light came on and diagnosed as code 41 Heated
O2 sensor.
Could the change of octane have caused this? or is this just a coincidence?

Thoughts.....
Neil

 

Nope, that code isn't a failure of the sensor's ability to measure anything,
that is a failure of the heater circuit that gets the sensor into
operational ranger faster. The fuel almost definitely had nothing to do
with the failure.

 

any thing could happen..if the transmission went out with a car with
207,000 miles, would you ask the same question??? or if the motor froze
up would you????