So again my b16 turbo professionally dyno tune. After driving for 30ish. When i come to a complete stop the idle will idle between 500-800 rpms up and down like 4-5 times and then stalls out. Sometimes it does it sometimes it doesn't. I am running 1 step ngk colder plugs gap to .28 and my wide band when it starts to idle air fuel ratio is leaning out around 15-15.8. So idk whats wrong lmk. Thanks.

 

Possible tip-in enrichment. Tuner should have taken the car out on the street to finalize the tune to smooth out the idle. Take it back, have them clean it up.