Thanks Terry, I couldn't see the forest for the trees. I just didn't think having a bad plug would cause the light to act that way.
Thanks again.
PS
Hope you make it to Kenai.

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Habits I support
95 E300 D 220,000 & counting (I think I'll call him Fritz)
02 Tahoe (Momma's ride)
98 GMC Sierra 120,000
57 Chevy Nomad (bought in '69)