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      08-05-2026, 04:01 PM   #34
BenFenner
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Drives: E36/8 | E53 | E91 | E90 M3
Join Date: Jul 2016
Location: Columbia, SC

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Quote:
Originally Posted by saxon View Post
this makes ZERO sense, the ground isnt grounding on the cover at all.
There are two coil harness grounds. One of them does connect to one of the valve covers. It is below one of the coil cover riser mounts. Or coil beauty cover stand-off pylons. Or whatever you want to call them.

Quote:
Originally Posted by saxon View Post
The valve cover itself is not touching anything metal. it has a rubber insulator/seal between it and the cylinder head and each bolt holding it in has a rubber insulator/seal.
Yes, this is correct. But it doesn't mean that you can't "ground" to it. Even if the valve cover doesn't connect to the negative battery terminal (worst case scenario), it is still a large electron source and works as a capacitor of sorts in this instance.

Last edited by BenFenner; 08-05-2026 at 05:19 PM..
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