I am not sure which parts you mean by "3 coil suppressors". What do they look like, and do you have the part numbers?

By the way, I was able to clear the codes using M.B.Doc's suggestion - the scanner seems to be doing the job now.

I'll drive a few days and check for the codes again, but replacing the coil suppressors sound like a decent idea regardless...

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Dave

1995 S320