370zzz

Hi! Very new to this so I hope I haven’t put this in the wrong section, I’ve recently purchased a 370z that was ecutek tuned to have overrun past 4k revs, after abit of spirited driving it started to burble and pop after 4k revs but the CEL was flashing for a few seconds. After that it never came on, no ECU codes on the OBD, no loss of power or unusual noise from the engine that would indicate misfire or anything. Runs smooth. I know the point of an overrun tune is to cause a slight misfire for the excess fuel but stressing slightly, Am I okay? Was the CEL flash due to the overrun and or there actually a problem? Turned the overrun tune off straight away😂