Has my car fixed itself?

[George Dredd]

My M.I light came on a couple of weeks ago, I think the code said it was the front H02S heater bank 1, I started the car today and the light had gone off ,is it likely that its now working again?

[Lexx]

It's more likely that the code comes up under certain conditions, and that condition hasnt been met for a while.

 

Once that condition happens again, the CEL will come on again.