G Atsma

A cylinder was wet how? Water or gas? Or oil (doubting that, but better ask...)??

Guy with a Chevy

It is the top photo showing the passenger side head with number 5 dark on the intake valve. The ceramic portion around the center electrode is also darker than the others.

​​​​​​Didn't throw any codes over the last month I thought it was running somewhat good but rough.

Your guess is as good as mine on what it is. Fuel? Misfiring too rich or maybe injector stuck open?

Never checked fuel pressure I could hook the rail back up tomorrow it would pressurize it with the key forward and I could manually check the injectors with a 12 low current source?

Damn shipping delayed who knows when I'll get package