Exhaust putt posted by inf on December 19, 2013 at 06:20 PM
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My car does this. It did it with Nismo 555CCs and now with 740CCs. Kevin @ Austin Z Clinic claims that larger injectors will do this because they have trouble completely stopping the flow of fuel, and sometimes a little extra will escape. He calls it an "idle miss" and says its not anything to worry about. This has always seemed weird to me though.