Re: Custom Gauge Cluster
Your kidding? That's normal. Your turn signals eat a lot of power. Watch the voltmeter when you flip on the headlights. Flip them on and off and watch the volt meter. Flip on the headlights, windshield wiper, stereo, fog lights, watch it up of the voltage and the meter drop. That's what it's supposed to do.
Your speedometer is pulsed from the DRAC. The less pulses, the more the needle bounces. The more pulses hit it, the smoother it will be. Of course your speed will be higher also. I'm glad you asked this before you took the cluster out. There is nothing wrong with it.
Your tach is bouncing because there is something wrong with your ignition. That is a telltail sign that you'll find throughout the syty mailing list up to today. The misfires in the ignition make it bounce. Just driving around, you won't notice it. Which is why it drives "fine". When you get under boost, it will REALLY bounce from the misfire.