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Originally Posted by Roll
I did replace coil/plugs maybe 20,000 miles ago. Bosch/ngk.
Tonight, I put new coils/plugs in #7&8 cylinders. Bosch/ngk
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Which NGK plugs did you get?
Where did you purchase the NGK plugs?
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Not sure if its the O2 sensor or not.
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Display the live data then you'll know.
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I guess that's would be the next though I replace after MAF sensor.
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Guessing and throwing parts at it inevitably ends up being more costly and often doesn't resolve the problem.