Bypassed fuel pump relay

[CGCWO]

So I was able to get Little Blue (87 4.0 renix 4x4 auto) to run. Bypassed fuel pump relay after replacing all the fuel line connections, fuel pressure regulator and basically a completely new fuel system from tank to injectors. 

Now I need to figure out why the relay isn’t working correctly. I have tried several new supposedly hood relays and the only thing that works is using a jumper on the relay. Any suggestions or thoughts as where to look? 

[Ωhm]

Is D1_5 Hot (B+) at all times?

 

 

[CGCWO]

20 hours ago, Ωhm said:

Is D1_5 Hot (B+) at all times?

 

 

D1_5 

 

[Ωhm]

Need to do a visual inspection of your fusible links located on the starter relay. Look for bubbles, holes, open wire. If fusible links look good, track back wire at D1_5 to its splice in the harness.

[CGCWO]

15 minutes ago, Ωhm said:

Need to do a visual inspection of your fusible links located on the starter relay. Look for bubbles, holes, open wire. If fusible links look good, track back wire at D1_5 to its splice in the harness.

Thanks. Working on that, between tornado warnings/watches. I am ready for spring/summer. 

[Ωhm]

On a precautionary note, the way you jumped the Fuel Pump Relay Block, Fuel Pump Motor, Injectors and a few other components are now running current flow through the Ignition Switch (I1 feed). Could possibly overheat the IGN SW.

[CGCWO]

1 hour ago, Ωhm said:

Need to do a visual inspection of your fusible links located on the starter relay. Look for bubbles, holes, open wire. If fusible links look good, track back wire at D1_5 to its splice in the harness.

Think I’ve found the issue. Non-existing splice on D1_5

[CGCWO]

2 minutes ago, Ωhm said:

On a precautionary note, the way you jumped the Fuel Pump Relay Block, Fuel Pump Motor, Injectors and a few other components are now running current flow through the Ignition Switch (I1 feed). Could possibly overheat the IGN SW.

I kind of figured that. So I’ve only run it like that for a few minutes. Just verify it will run and idle, kind of that is.

[Ωhm]

1 minute ago, CGCWO said:

I kind of figured that. So I’ve only run it like that for a few minutes. Just verify it will run and idle, kind of that is.

[Ωhm]

Splice_E is HOT (B+) from the Fusible LInk G. Splice_E also feed B+ to the Fuel Pump Relay C216_1 (30).

 

 

[CGCWO]

She started right up, not a steady idle but the splice was the fuel pump/pressure issue. Idles up then almost dies, but comes back to life.

[CGCWO]

@Ωhm thank you again for all the help!

[Ωhm]