Just recently bought a 1990 twin turbo z. turbos have been upgraded to jim wolf turbos. It has a separate boost guage which works accurately. My problem is the original boost guage in the cluster will show about (-)4 to 5lbs of boost and the guage will move back and forth. At the same time the brake light on my dash will flash on and off as the turbo guage jumps. And the light that says "lights" will stay lit on my dash. Sometimes it doesnt do it at all. It also makes a light buzz when all this is going on. Also on occasion the battery light will come on as this is going on! Please help!!!
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problem with guages - js1990300tt22:28:49 12/07/09