Quote:
Originally Posted by vince3
I have a MSD that has a slight idle issue and my car does backfire when I start it up. Can you help me out and give a good detailed explanation on how you fixed it? Mine could be leaking from the main gasket but i want to see first if i have the same leak as you.
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It wasn't the MSD, it was the seal between the IM and the aluminum TB seal plate. Improper install caused the TB blade to pull on the seal causing a leak.
My check engine light turned on though, but I'm going to take it with my tuner.