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Old 07-04-2011, 03:49 PM
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Rick Parker Rick Parker is offline
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Location: California, Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
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Dirk where have you been hiding?

What you are experiencing is an uptick in line voltage from the voltage regulator when the lights are turned on. It then causes the gauge to "Indicate" higher when in fact there is no actual change. That is why when the lights are shut off the gauge returns to "normal" right away.
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