Review on 🔍 Optimized for SEO: Marshall Instruments LBB00100 Black Fuel Pressure Gauge by Christopher Buck

I've had this sensor since February 2017. And I think it stopped reading normally 6 months to a year ago (currently August 2019). My fuel pump hasn't been working properly for about a month, whines and my digital in-cab fuel pressure gauge on my quad gauge has fluctuated from 55psi to 85-90psi, never been constant. Before the pump fails, it maintains a fairly stable pressure. But while my digital gauge is fluctuating everywhere, my Marshall analog gauge under the hood seems to show constant pressure and I know it's wrong because it's a bit choppy at idle and the pump whines and oscillates quite loudly. And the aftermarket PLX fuel pressure sensor sits next to the Marshall fuel gauge as you can see in my picture. Now however the author of this listing hasn't mentioned anything about a guarantee on this listing so maybe I'll get another one or something else if the seller doesn't want to do an exchange. HOOD" in my last paragraph. Well that's because this sensor is under the hood in front of the firewall and not in the cabin. Several people have written that they have this in the cabin to check the nitrogen pressure or the To monitor oil pressure or fuel pressure You should not allow any saltpetre, fuel or oil to run into the cab or past the firewall at all, the correct way to do this is to take the sensor and run the wiring around the cab to check Carefully and triple your wires and clamps and what not, or do it right, take the sensor and run the wiring into the cockpit.