Hello every this is my fist post here so please bare with me. I have a 91 Honda si I find its will die sometime at a idle. Not all the time but just sometimes. This had been happening for a while now. I don't drive the car much anymore (not because of it). It starts fine idles fine runs good, but sometime when i come to a stop sign or when i get off the freeway the idle drops and dies. Then when I go to start it it wont start. But if I wait 10 mins it starts and everything is fine. I have read about the main relay switch and i live out here in calif and its not a weather thing. It does it when it's raining or sunny (when it does it). 2 years ago i had trouble smoging it, so I had a tuneup and oil change and it passes. Now 2 years later and only 25 miles more on it it passes. As i am talking to the smog guy how this car does this it does it again when he shut it off. After 5 mins it starts and all is good except that i don't know why its doing it. Thanks for any help upfront? Oh it passed smog no problems