Took a trip of about 150 miles the other day. The last 50 miles of the trip the fuel pressure gauge would jump from 5-10 lbs the entire last 50 miles. Every once in a while it would go up to 19 lbs then rite back down. Any ideas on what my problem mite be? Thanks in advance

 

What brand of gauges do u have?

 

Glow Shift

 

ISSPRO ... don't use GLOW CRAP ... I have burned up stuff due to that crummy gauges .. you get what u pay for just remember that

 

Yes my glowshit fuel pressure gauge is junk also I am just waiting to get the money for new gauges.