gkantziper

Car otherwise perfect. Ideas?

MrAlex

Probably IAC Valve needs some cleaning.

slalom44

Do you have the A/C or defroster on when this happens?

kgregg

This is a highly covered topic. Heres a thread to get you started:

https://www.s2ki.com/forums/s2000-un.../#post17573904

kasher_khan

+1

The weather is changing in most regions. I was advised to wait it out to see if the ECU settles on its own. I did that and it seems to be gone for now. I might try the stuff int he thread above if it starts happening again. Most of the items mentioned are good for maintenance anyways.

gkantziper

The AC, defroster and headlights don't seem to have an effect. My occasional idle dip is subtle, but happening. Never stalled.