Well, this weekend I found the source of the heavy engine missing. (Loose spark plug connector...wasn't seated in all the way
) Now comes the issue with how the engine performs under heavy acceleration. The engine lags and gives a jerking motion from missing. At idle it's dead quiet and when revved up in Neutral is perfect as well. It's only when the engine is under stress from the transmission. The only thing that I can think of is that the Techron that's currently running through the system is causing it. Has anyone had any similar symptoms? (I still have NGK plugs in as well)
Keep me posted!