Fuel Pressure gauge issue

[tylogans 22]

My gaffrig fuel pressure gauge has been working great until last weekend, now when I start it up it pegs to the right and then when I turn the boat off it returns to the off position or all the way to the left. I haven't had a chance to look around the motor I did crawl under the dash and all the wires looked tight.

Any comments would be appreicated.
thanks,
Gregg

[BUIZILLA]

if it's a 1 wire sender, the sender is lost the internal ground

if it's a 2 wire sender, then the ground side is interrupted

[Conquistador_del_mar]

if it's a 1 wire sender, the sender is lost the internal ground

if it's a 2 wire sender, then the ground side is interrupted

+1 I agree.

[tylogans 22]

thanks- do you know where that sender might be located?

[gcarter]

If electric fuel pump, the sender will be between the pressure regulator and carb.
If a mechanical fuel pump, between the pump and the carb.
If it's carbureted.

[gcarter]

Here's the pressure regulator and pressure sender on the TR. The regulator is at the bottom of the blue hose, and the sender is screwed into the right side of it. Two wires are attached to it.

[tylogans 22]

thank's George for the great information.:)