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Old 07-08-2011, 07:14 PM   #5
98nbmz
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Join Date: Oct 2009
Location: Ridgeville
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Crank sensor maybe? But I dont see that just randomly going out after the mods you did at all. What was the tech using to log the car? Is the mis-fire just a hiccup or constant after 4k? Look for possible drops in voltage.
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