just installed my gauges. when i start the truck the fuel pressure gauge gives me a reading of 10lbs. when i shut of the truck, the gauge stays at 10lbs. all other gauges go to zero!. when i restart truck the fuel pressure gauges drops to zero- then goes back to the appropriate reading of 10lbs. is this normal for a fuel pressure gauge? thanks

 

Mine does the same thing, seems to be normal. It looks like when power is removed the needle stays at the last reading. When power applied it reads 0 until the fuel pressure comes up.

 

good to hear!! thanks!