yeah it was a "Service Engine Soon" light.
Anyway the new plugs cured the problem.
Thanks for the advice.
Here are some pictures of the plugs that I pulled out if your interested.
What does that mean when the plugs have a red burn on them?
I think these Bosch Platinum plugs are crap after having this happen, the electrode is like totally surrounded by the insulator, it does not stick out past it.
I ended up buying the Champion Platinum Power, they look like a much better design.
Oh yeah, I will not be using seafoam again.