Today was suppose to have some decent temperatures, but not so. I hate not being able to work in my garage! So all I got to was new plugs, no coil cleaning.

But the old plugs had a gap of 0.05 or more in some cases!

Im thinking that was the issue from the start. And the old wires, etc were not up to the task to properly insulate. The new wires, being new, reduced but could not prevent the arcing issue. Tonight I will take another look for any glowing.

The car is running even smoother now. Fingers crossed.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car