Cross posting from under the hood in case others here have experienced this: https://www.s2ki.com/forums/s2000-un...p0453-1207104/

Basically, after a hard track session (and no other time), I'm finding the car doesn't want to take gas - pump keeps clicking off unless I fill very slowly. It also will sometimes stutter when cruising between 3k and 4k RPM, again after the track. And after the last track day, I got code P0453 - Evaporative Emission System Pressure Sensor/Switch High, which seems like it's likely related to one if not both of these issues.

What I'd like to know is, is this just something that happens with these cars when fuel is sloshing around on the track - presumably saturating the evap filter or something along those lines, so the fuel tank venting isn't working well afterward? If so, I'd expect everyone would be getting this to some extent after hard track sessions. If it's only me though, there must be an issue with my evap system.