1-3-2-4 Posted January 20, 2014 Share Posted January 20, 2014 when I turn my car to the on position the gauge sweeps to about 80 psi and it goes back down to zero, however when it's not connected to anything it will do the full sweep to 100 psi.. I don't get it, I thought the opening should do the full sweep regardless? Link to comment Share on other sites More sharing options...
ras06LGT Posted January 22, 2014 Share Posted January 22, 2014 Mine does the full sweep each time. Maybe double-check the power and ground connections to make sure nothing is loose. Does the gauge read normal otherwise? Link to comment Share on other sites More sharing options...
1-3-2-4 Posted January 22, 2014 Author Share Posted January 22, 2014 I don't know started up the car today and it was fine Link to comment Share on other sites More sharing options...
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