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Old 08-24-2009, 10:21 PM   #6
franknbeans
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Drives: 2010 CAMARO
Join Date: Sep 2008
Location: Pittsburgh-ish - PA
Posts: 4,216
it's a diode used to change the signal going to the mass air flow sensor. . . It lets the computer think that it is always running in the "cold" cycle.... dumping more fuel in the motor at all times.
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