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Spark Plug change?
I was accelerating from a stop and around the time that my car changes gears from 2nd to 3rd, the car jerks a bit before driving like normal. This only happens when I'm accelerating normally from a stop. But it doesn't happen every time. Do you guys think this is a spark plug issue? I am running a stage 2 tune. I remember that the person who installed my tune/parts said that my spark plug would need to be replaced every 5,000 or 8,000 miles (I can't remember which one he said) But I've already hit both mile markers. Anyone experience something like this while running a tune? or even stock?
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