Anybody have an idea what would cause my 93l 6spd coupe to idle funny. What it does is when I am just letting it idle, the rpms are fine but it sounds like it stutters every little while. Kinda like a irregular heartbeat. I wonder if there could be something gumming up my fuel system. The tolerances in these is so tight, I imagine that if even a little gunk gets in the system , it would effect performance and idle, both problems I have. On my old 91 integra, I took it to a shop and they hooked it up to one of those fuel system cleaners that pushes a cleaner through the whole system, I am also curious of anyones feedback on this procedure too. Any help is greatly appreciated.