[Converting from EFI to Triple Weber setup]

17 minutes ago, bradyzq said:

Why dump the return line? 

 

You can plumb the triples setup exactly like the stock EFI.

 

TANK ==> PUMP ==> FILTER ==> CARB CARB CARB ==> FUEL PRESSURE REGULATOR ==> RETURN LINE ==> TANK

the plumbing is pretty straight forward. I have no issues there plus the return line is optional.

it's the electrical that I have no knowledge about. I'm concerned that by removing the wiring harness I'll lose wiring that connects the ignition switch to the starter, pump, ignition coil, etc.

[EFI to Carb Conversion]

On 11/20/2012 at 7:22 PM, AZGhost said:

So asking around at some Z shops, seems this is easier than I thought. Pull cable from ECU, pull ECU out, and then cable harness from ECU comes out. Whatever is attached to the cable harness can go. Piece of cake....

@AZGhost

did you ever find a solution to the wiring problems after you removed the EFI Harness?

i've kinda stumbled upon this problem and am currently trying to figure it out.

did the advice given to you by others work out? 

[Converting from EFI to Triple Weber setup]

... i think i just found exactly what i needed

 

[Converting from EFI to Triple Weber setup]

78 280z

I bought a carter low PSI electric pump to replace the stock one near the tank.

the idea was that I would just replace the stock pump and use the original +/- wires, but it doesn't look like that will be possible

the other route was to use these instructions and apply it to my 280z.

but the other problem is that by removing the EFI wiring harness I'm afraid that it might remove other essential connections from the ignition switch to the alternator, starter, etc.

if I follow the instructions linked they require an oil pressure switch in the install

 

[Converting from EFI to Triple Weber setup]

My apologies for reviving this thread but I'm in a bit of a pickle.

 

I've removed all of the above-stated items

but when it comes to the removal of the Wiring harness that goes to the Bosch ECU,

is the wiring that connects the fuel pump to the ignition switch bundled up in the same harness?

also, the wiring for the Alternator and the started, and even the ignition coil?

I'm just looking for advice on how to handle all the wiring for the items to remain. 

do i need to wire up the new fuel pump? if so, this is what I was looking at 240z fuel pump wiring

 

I can attach pictures of what I'm working with if I need to

thanks in advance