fuel cell

For 96 and up, it is just a computer test. They check and see if you have a check engine light, make sure it goes on and off, and then run a diagnostic test to make sure that the computer doesn't throw any codes. I don't see any reason why an external pump would throw a code, and the emission's places where I live are pretty cool, so I can just give them a gas cap to test since mine won't fit.

If your truck is 98 or higher it most likely has a returnless fuel system and runs at 65PSI constantly. IF thats the case running a MSD external fuel pump won't work. (I owned a pump and have all the specs on the fuel system and talked to MSD about it). You can get a voltage booster and pump about 15.5 volts the the fuel pump and get your 65PSI...but its made for a returnless system and will burnout quick as fuck.

I just recently put my fuel pump in my fuel cell (last week). You have to get a fuel cell that is atleast 10"s deep. You will still have to use the small ring that comes with the filler cap under the fuel pump. You will also need to buy some kind of filler neck and drill that in too. I have pictures of everything I did to mine. I didn't cut in the filler neck yet because I'm not positive where I'm going to put it yet. Let me know if you want me to post pictures or if you need help with anything else.

I bought all my shit from Summit Racing. I probably spent about.....$270-280ish area. That is inclueding caps to cover the outlets on the fuel cell too.
Parts I bought are:

15 gallon RCI aluminum fuel cell
Filler neck
2 12 bolt flanges
4 8AN- caps

i got a fuel cell and just used my stock pump in it and it works great

I don't think he has been able to test his fuel cell further then a drive down the street and back yet

i talked to a guy from GEF racing in Union City this morning. He said that the older models do have FTP sensors, but as long as the truck runs fine and doesn't skip it shouldn't be a problem. He said on newer model 4.0's SOHC that might throw up a code, but on an older model 99% it should NOT cause a problem.

so far no check engine light, and that was withe the charcoal box disconnected.

The FTP controls the charcoal canister, if the PCM reads that the fuel tank is not at correct pressure, is will open/close the Vapor Canister valve. if this doesnt open or close then you will have a P045... code, either the pressure is too high or low. I have talked to my friend who owns a 96 4.0, so far he has passed with his fuel cell and no FTP sensor, but from what i have heard the 01+ need the FTP sensor. Even then by the time you buy an external pump, the lines, and the fittings along with a fuel cell from Jegs or Summit is comes to the same price as a custom fuel cell that could be made for stock cap, and if you wanted the FTP sensor. not only that but the stock pump will bolt right up which means your fuel gauge will work correctly!

no emission checks here

yeah i gotcha. if I had to buy all of my stuff brand new, I probably would have gone that route w/ a custom cell. Ive only got a total of maybe $150 in my fuel cell setup b/c I traded some old parts I had plus some cash for the cell and only had to buy a new pump and a few fittings.

FYI 96 is under the hood and smaller were as the 98 up is above the spare tire.