About 6 weeks ago I finally changed the spark plugs. So I put somewhere near 180,000 miles on a set of Autolite spark plugs. Two of the spark plugs the center electrode was completely gone. I don't know how the fuck the engine ran and I certainly don't know how it did not throw a code , it still ran very smoothly even at idle.
I've used Autolite plugs in the 2.0's I've owned for over 20 years now because I think they work the best of the ones I've tried with this engine.
I would also like to leave a comment here about having success with an autolite AR52 plug. Same exact thread size and identical reach as the OEM torch plug.
Autolite or Brisk plugs with stock gap.
I have a 05 with Edelbrock SC, 11 pounds of boost, and E85.
If it didn't misfire until you put plugs in it I would suspect the plugs are the cause.
So Champion sucks, more like Chumpian.
Some of my best vehicle purchases have been trucks with "misfires" or "engine issues" and almost all of those have had goddamn champion plugs in them, or a champion distributor.
But let this be a lesson never use champion plugs again
Don't use AutoLite plugs in this car, they are known to have issues.
Also, Autolite is extra terrible. I would have done anything else.
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