Car runs ok, but it does seems to run slightly rough. Almost not noticeable and nothing at all like it did when the module failed and I had no spark on coil #1/3. I was a little shocked at the report from the emissions test and how the plugs looked when I pulled them. I guess it'* worse than I thought.
I don't know what to check at this point. What ever is the cause, it is common to all cylinders.
I read that carbon build up can cause high HC level. Is there anything else for me to check or should I try to do a Sea Foam treatment? I've never done one before. If that what I should try now, what all do I need to buy to do this? and thats for all your help.
1995 Bonneville SSE ...... L36 3800 Series II N/A V6, FE2 3.06 gears .......... 224K
2005 F150 Lariat Chrome Edition . Trition 5.4L Modular V8, 4x4 3.73ls gears .. 44K
2001 Wellcraft Martinique 2400 ....... MerCruiser 5.7L EFI Bravo III ............. 220hrs