Yeah, turned out to be grubby throttle body as per 3rd post.
When cleaning it the first time I did move the butterfly valve a little just to clean around the edge, not much, just enough to be able to wipe out the grub.
Hasn't had any adverse effect as far as I can tell, no lights, not lumpy idle, no high idle.
Im wondering if I had no trouble because I had the battery disconnected while I was cleaning it so the car may have done a throttle position reset upon connecting the battery again.
I did notice when cleaning it the butterfly appears it can move both ways (if that makes sense).
Like if you push it at the top the bottom lifts, but you could also do the reverse. I pushed on the top when cleaning as that is the way the throttle on my 106, my MR2 and my Punto all moved (top goes back, bottom lifts and comes forward).
Im wondering if the reason some have issues is because they moved the butterfly in the wrong direction?