[:I]I saw on the SRT forum that a simple wire directly from the negative battery terminal to the head improved spark plug firing.There is evidently less resistance with that wiring.It was a cheap fix and what do you have to loose?There were other post I noticed where engine idles rough and missed and turned out the problem was a ground from body to engine, so who can say.There are three threaded holes in the head under the throttle body, I found an old 12mm fiat bolt that worked good.The threads are metric so don't force anything.Other people are selling kits from $79 to $153 including Honda, so maybe there is something to it.I felt the biggest bang for the buck was the head ground, I will now look at the ECM.
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