Review on MaxTow Double Vision 100 PSI Fuel Pressure Gauge Kit - A Complete Solution for Trucks - 2-1/16" 52mm Size - Includes Sensor & Digital Readout - Black Gauge Face with Green LED Dial Illumination by Bruce Marable

Installed on a 2003 FL70 with HPOP CAT 3126E. The fuel pressure lets me know if I have a problem before the engine shuts down. Low fuel pressure on the HPOP indicates a clogged fuel filter or a small leak in the intake line. I installed it on the dashboard on the passenger side at the top so as not to be too obtrusive. Idle warm I have 66. Power reserve 75 uphill boost 82. Everything is good. The initial cause was a problem with diesel algae. Now I can see if the fuel pressure drops before the oil pressure. This is important to know in the HEUI system.