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Old 08-25-2009, 01:52 PM   #14
bigbadjohn84
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Join Date: Feb 2008
Location: Florala, AL
Posts: 398
Re: 2000 6.0L runs rough and stumbles

they pick up vibrations and detonation in the block and send that info to the computer to let it know whether to advance or retard the timing to adjust for best overall performance and such depending on set incrimites. thats a pretty basic description. otherwise... they are importand lol
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