I've got a nexus fuel pressure gauge in my Bullitt (electric), normally reads 30psi at idle. The gauges have been in the car for half a year with no problems.
For the past week it has been rising at idle to 50psi gradually, RPM is constant and doesn't change. The pressure goes down after a long highway run. The car is usually hot (at operating temp) when the pressure is rising.
Also had CEL "Mass Evap leak detected" set, cleared last week, it has not set again.
Bad sender on the gauge or something else?
For the past week it has been rising at idle to 50psi gradually, RPM is constant and doesn't change. The pressure goes down after a long highway run. The car is usually hot (at operating temp) when the pressure is rising.
Also had CEL "Mass Evap leak detected" set, cleared last week, it has not set again.
Bad sender on the gauge or something else?