Fuel Sender Ohms and PSI question

jps4jeep

Super Moderator
I am on the road right now and don't have access to my FSM, trying to order some parts, does any one know the factory Ohms on the Sending unit in the tank?
94 YJ true 15 gal tank (not the 20)
I think it is 0-90 ohms E-F, can someone confrim this?

Also, Factory Fuel Presure is about 45 psi?

Thanks
 

Fuel pressure at idle

TBI system 14 to 15 psi

MPI system

Vacuum hose connected 31 psi
Vacuum hose disconnected 39 psi

From what i am seeing on the net 0 to 90 ohms seems about right.
 
Last edited:
With the Vac. line connected, the pressure should be approximately 214kPa( 31PSI). Vac. disconnected from the fuel pressure regulator should be 269kPa (39PSI)..
Empty= 1 ohm
1/2= 44 ohms
Full=88 ohms
 

Thanks, I was going to use the sending unit that came with my fuel cell, it is a chevy 0-90 and I was looking for a pump, I think I am just going to use the originaly sender and pump and save some cash. only problem will be when the it reads 1/4 tank, I will really be empty..

Now I just need to make a mounting flange, when I get home I will snap some pics.
 
Back
Top