Ha'yall Dose the duraspark II module need to be grounded ?. I mounted mine on the fender-well that is plastic and wondering if I should of hooked a ground wire to it. As the truck runs kinda funny sometimes when wet / cold tries to die.
I would, it is a good idea to ground it. All of mine have been on metal fenders, but I run a seperate ground wire to the case anyway. Of course, I'm a ground freak. Can't swear it makes a diff, but I've never had one fail, maybe just lucky.
As stated, it grounds through the distributor, no connections to the case inside so no point in grounding it-
I have had a bad ground at the distributor before and wound up splicing into the black ground wire to run a lead to the battery negative terminal. Never had an issue after that.