Hey all. Today i installed a Spek fuel pressure gauge made by ProParts. When I power the gauge up, all it does is sweep from 0-100 and flash. It will keep sweeping up and down without stopping. Anyone have any ideas what the problem could be? Its not the wiring since i also powered it up off some leads from other gauges i have mounted that work fine. This is a brand new gauge. Please, any info would be great. Thank you.

 

Well, if its not the wiring, then it sounds like you know what the problem is. Bad Guage?