Fuel Gauge Install and Pressure reading
 

Hey guess, I was looking to learn a little more about the fuel pressure, I know below 45 is bad. But some clearity would be good. My truck is a 2006 F250 has the banks intake and exhaust, cfm intake pipe, egr delete, arp studs, sinister coolant filter, sct tuner, blue fuel spring. I have an electric fuel gauge installed on the test port of the fuel filter housing. its reading around 80. I did purchase the truck used but as far as I know it has stock injectors and fuel pump. what kind of reading should I be getting from there? Is 80 normal?

80 is not normal. Typically with the blue spring you'll see 62-65psi. Is this an actual Ford spring? 80 isn't really bad necessarily, but a little higher than necessary. What's bad is when it goes too low. Ford's spec was always 55psi.

Are you holding 80psi while driving? Idle doesn't mean squat, you need to see what pressure is when you're out running a 1/4 mile run or going up a 5 mile hill with your foot to the floor. Is pressure dropping at all?

No tuner?

What gauge is it?

Yea I have the sct x3 with an economy tune from mkm. The pressure does drop some but only a few psi when going to the floor which I rarely do. I have glow shift gauges, I know they are cheaper then most so thats why Im wondering if they are. At idle it has gone over 80 not by much tho. When the truck is cold it seems to read around 75 or so. Junk Gauges? Would you know anything about heated seats to? I have a 2006 lariat but without heated seats, Could I get seats from the same year with heat and put them in? What all would be involved with that?

As for the seats, I'm not sure. My buddy does a lot of interior swapping and adding stuff from lariats to XLT's etc, I will ask him on that and let you know.

As for the gauge... glowshift is already a sour name in gauges, and I have definitely heard of issues with their sending units for their fuel pressure guages.

Personally, I'd get a simple cheap mechanical gauge to just verify it first. Harbor freight has them. Just put it on where you're reading from now, feed it out under the hood by the windshield and then hold it to the windshield with a wiper so you can drive and see what it's doing.

I know an upholstery guy that I can axe about the seats.

I second the motion on GlowShift. I bought the fuel psi, and the sending unit didn't work. Rather than mess around, I bought Auto Meter Sport Comp. It's expensive for a reason, it makes GlowShift look like a $1 store gauge! Weather proof connector on a smaller diameter sending unit (not thumb screws), plenty of wire, and if you tap into the right wire under the dash (over by the OBDII), it will dim with the other lights. :jump:

Thanks guys. I will have to either check it with a mechanical gauge or just get a better set of gauges. I forgot to mention that the blue spring is from international. It was the kit Mdub, you mentioned about a few weeks ago. I got it off of ebay. Thanks again and let me know about the seats. I have a guy sending me a price on both the seats and Id hate to get them if it wont work. I was hoping I could just change out the whole seat and it would just plug in lol but nothing is ever that easy.

I talked to my upholstery guy, the 12V from the power seat would power the heater, but you need the switch also. He said most switches are either in the dash or console, not on the seat. There are aftermarket heaters/massagers (sorry, no happy endings) that work in your EXISTING seat. PM me if yer interested, he's here in Nev-odda, but shipping is never a problem.

Heated seat buttons were right on the seats in my buddy's 05 lariat... if I remember right...

That would be even better, the 12V from the power seat would be all that is needed. :jump:

yea on my 05 the heater button is on the seat itself.