This has been going on ever since I've had my TurboII. Under anything but light throttle theres and arcing sound from under the hood. And its not pinging, everything runs and operates right. Does anyone have some insight for trying to find where its coming from?

 

Park the car in a garage at night. (obviously with proper exhaust venting) Open the hood and start the car. Turn out all the lights and look under the hood. Give it some throttle and watch for the 4th of july fireworks show.

If you don't see any sparks, listen to see if you can figure out where in the engine bay it's coming from.

 

I should have specified that it won't do it when revved, only when there is a load on the engine. I'll try it though, maybe its doing it and just not audible when revved.