i have the same problem, and i dont know how to fix it.. change the spark plugs and same thing. Its pretty aggravating when i dont know whats causing the problem. I think it could be the fuel pump, fuel filter, or maybe bad gas?

 

OK, i have the same prob sometimes. Only when it is hot and I'm in traffic. I contribute it to perculation. Some brands of gas are worse than others!
There is a thread about closing off the heater line to the intake somewhere.
Also, wonder if any body with the hondata gasket has the issue??

 

Here's the thread
https://www.s2ki.com/forums/index.ph...ic=315015&st=0

 

Thread being continued here:


https://www.s2ki.com/forums/index.php?showtopic=478799



Thanks everyone for all your help.

 

I have a Hondata gasket, Mugen fan switch and t-stat and have the problems.

I will replace my IAC later this week - hoping that cures it.