🔍 Optimized for SEO: Marshall Instruments LBB00100 Black Fuel Pressure Gauge Review

The pressure gauge in the oil system reads 60-65psi. The sensor has failed and now always reads 12psi when the system is off. It's too late to return.

Added to the queue when I switched to the injector on my 383 sbk. Accurately reads and compares portable fuel regulator readings to within a few pounds per square inch.

Use on the fuel rail of my 02 Silverado 5.3. Seems pretty accurate. Indicates 55psi at engine idle. I recommend! Looks pretty cool too I must add.

I've had this sensor since December and it's not reading properly. About 8 psi difference from my digital transmitter and a hard gauge that I manually tie.

Good quality and very impressive for the money. I would recommend this brand. I used fuel pressure on a Duramax auxiliary fuel pump for this. The Raptor has a port that is perfect for this small caliber.

Fluid gauges tend to fluctuate during use, but that's before you set off. Worked and looked great on an Aeromotive EFI with a carb dual pressure regulator considering how much it cost to build this setup minus the few bucks you saved buying high and low pressure gauges and the good Appearance made it easy, though, for me. I don't ride that much and it gets pressurized when I do but so far it's been a good buy and no leaks.

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…