Hey guys, my miata has been having trouble starting when the engine is warm. When cold starting, it works and idles just fine.
When I try to start it when it's still at operating temp, it would have a very hard time and just stalls unless I help it with some throttle, I would have to keep the RPM high until the AFR stabilizes.
Sometimes, adding throttle won't even help it at all and it would still stall.

I recently took off the head to change the head gasket, and also swapped to stiffer valve springs.
Could stiffer valve springs cause an issue like this? Or is it possible that I routed some of my vacuum lines incorrectly?
Fuel issue? Possible injectors or pump issue?

Attached is the tune I'm currently using, it still a WIP but the car definitely didn't have this problem when I was running with it previously.
I will add logs when I have the chance.

 

NA or NB (return vs returnless)?
I'm at work so I can't look at the .msq. Check your ASE tuning, it may need more ASE on hot restarts

 

It's the return type system.
I'll mess with the ASE to see if there's any difference.

Edit: Looks like it was ASE, and seems fine now. I was actually messing with it before but it didn't make a difference. It was probably because I increment the cells to little each test to see anymajor changes.