RandomHero

iTrader: (24)

I just installing my Autometer 2663 Fuel pressure gauge. I bought it used, but it was in good shape.

I installed everything and put the sender off the the shraeder valve.

When I went to fire it up the fuel pressure was reading was low around 42 psi. I've tried two different grounds and two different power wires. I can't figure out what the deal is.

The truck is running fine and always has, although just to be safe I'm going to buy a fuel pressure tester to make sure.

Anyone have any ideas?

00ChevyScott

iTrader: (10)

Changed your fuel filter lately?

RandomHero

iTrader: (24)

Yep less than 2000 miles ago. I honestly think it has something to do with the gauge/sender though. I'll post up tomorrow when I try the pressure tester.

00ChevyScott

iTrader: (10)

How much does the PSI fluctuate on the gauge when you drive it and go WOT? Does it respond correctly as far as PSI changes?

A Low Dime

iTrader: (13)

How much are fuel pressure testers? Ive got one you could use.

RandomHero

iTrader: (24)

Yes, it's fluctuating normally. I supposed this thread is a waste until I test it out tomorrow.

Hey man I appreciate it, but harbor freight(god's give to college gear heads) has one for under $20. If they're out of stock Autozone and Advance each have one for around $40. I'm sure it will get it's use some other day.

AKlowriderZ71

iTrader: (22)

Key on-engine off, 50 psi.
Idling, 45 psi.
WOT, 65 psi.

This is on my own truck, others may vary a few psi. I have the inline Walbro that came with my Radix in the equation, might make a little difference.

RandomHero

iTrader: (24)

See between key-on, idle and wot it's only moving between 39-45 psi. There have been a couple times where the gauge won't even come on at all. It's an expensive *** gauge, but I'm worried it might be messed up.

AKlowriderZ71

iTrader: (22)

What does it show when you pull the vacuum line off your FPR?

RandomHero

iTrader: (24)

LOL, um which one is that again?