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View Full Version : Alternator gauge dropping?



Dom123
06-23-2013, 05:37 PM
Hi,

So I just got this new SCT SF3 tuner which is awesome!! But whenever I let my car go through throughout the gears my alternator just drops, and above 5 seconds later goes back to normal. I can figure out why. I do have a pretty powerful stereo system in it I can have that cranking and my alternator is fine. I honestly don't think that's the issue with it thought. It's only happens when I give it full throttle. Anyone experience this or if someone can help me with this confusion, thanks!

fastblackmerc
06-23-2013, 06:11 PM
Normal

The engine computer, the PCM I believe, cuts the voltage regulator out at higher RPMs to give more HP.

Green96
06-23-2013, 06:40 PM
Yep, normal. I should only be happening at wide open throttle. If I get on it at night I can see my headlights dim at wide open throttle.

Dom123
06-23-2013, 09:25 PM
Thanks! At least i know this isn't a problem'!