Fuel pump issues in 1993 80 series

[OfficialGamings]

Well first of all im quite new here but ive seen some good advice on different people asking questions about there fuel pump issues.
I own a 1993 Landcruiser (FZJ80) Petrol. I have a crank but no start issue. I have been trying to diagnose the issue myself with no hope. The information I have currently may be helpful to a few of you who understand a bit more about the electrical side of a car then me.

First of all I am getting no fuel to my fuel rail while car is in the ON position and also while cranking in the START position. I went out and brought a new fuel pump with no hope. From here I decided that I wasnt gonna go out and spend money on everything fuel issues before I knew what it was. I went back to the fuel pump which is under the rear passenger seats. I noticed that there was no power going to the fuel pump at all, But take note there is 12V going to the fuel gauge showing how much fuel I have in the tank. This got me thinking maybe it was a Fuel pump relay issue or a Circuit opening relay issue. I felt my Circuit opening relay click on every time I turned the car into the ON position which that seems all fine. I couldnt do the fuel pump relay by myself but I did have a multi meter to test for ohms which it was about 80 ohms and I read somewhere between 50-120 ohms was ok for those coils.

After all of that I turned my attention to the fuel pump resistor (Which I didnt know these cars had one but found it reading about fuel pump wiring). I tested the ohms on this too which it was recommended for 0.73 ohms and I got around 0.79 ohms which I thought ok that seems good enough. Now im a bit confused on what it could be.

I had a little look online and found out I was able to give the fuel pump 12V from the diagnoses by jumping B+ and FP, In my surprise this worked and the car was starting. But I dont wanna drive on that. On the same forum I read they said this bypass the fuel pump relay and resistor. (Im not sure about the Opening circuit relay).

Now I am currently stuck on what to do next? Any help would be nice!

(I understand this is a bit long but im just trying to give all the information I have about this issue to someone with a bit more knowledge then me to help me out)

 

[Devils Paw 80]

No worries on the delay! I ordered a new fusible link after reading some posts and installed that, a new 15A EFI fuse, and a new EFI relay today just in case. Still no dice on the fuel pump working. I figured I would try all the easy electrical component swaps before trying to the diagnostic route.

This evening, I just tried the paper clip to jump FP to +B, and it sparked! My assumption is that’s a bad thing, but I’m not sure what it means. I’m thinking my next steps are to remove the rear seats and look at the connectors going into the fuel pump. On a side note, my fuel gauge reads empty when I know it isn’t, so I’m curious if the electrical connections at the fuel pump are bad.

Does this sound like I’m barking up the right tree?

The purpose of jumping those was to bypass the new EFI relay you just installed. Sounds like you have a bad fuel pump. Yes, check the connections to it because it's either an electrical problem or a stuck float that's causing your fuel gauge to not work.

 

[efjayatee]

The ICM. (Igniter control module) solved mine.

 

[wopwophuey]

The purpose of jumping those was to bypass the new EFI relay you just installed. Sounds like you have a bad fuel pump. Yes, check the connections to it because it's either an electrical problem or a stuck float that's causing your fuel gauge to not work.

That makes sense - i cleaned out the connections and still no dice. I think my next step is swapping out the fuel pump.

 

[jonheld]

The purpose of jumping those was to bypass the new EFI relay you just installed. Sounds like you have a bad fuel pump. Yes, check the connections to it because it's either an electrical problem or a stuck float that's causing your fuel gauge to not work.

Negative. Jumping B+ to FP bypasses the FP logic (COR/FPR). The B+ comes from the EFI relay.