The Last Captain

[cranefly]

Check engine lights can take weeks to reset, from what I'm reading.  I think you have to satisfy a very complex set of driving conditions, both highway and city, and other stuff, to make it happy.  Lady Cranefly had a nightmare situation with a check engine light going into a smog check, ended up driving with an expired registration until things finally cleared up (it took many hundreds of miles).

So there is hope.  Good luck.