Originally Posted by DieselManor
Where do you have the sensor located? Is it in the back side of the fuel bowl? You might try using a needle valve like the one below to tame down any pulses getting to the sensor. I've found that it helps prolong their life. The sensors are the weakest component on any ele. fuel pressure gauge.
Specialty Fittings at DieselManor
I did forget about the one, i wouldn't even call it a problem, thing I would see, when on a long trip, during the winter, especially if it was snowing.... During extended drive times, on the highwy, either I wouldn't catch it acting up, or I would catch it, the gauge would steadily start making its way up, with some fluctuation, until it would top out. It would stay there, until I got off the highway, then it would almost immediately return to normal. The only thing I can think it would be is needing the needle valve. Anybody else seen or heard of this phenomenon? Thoughts? (BTW, I got this gauge and mount from you David)