[Unknown User]

Hi folks,
I posted a couple weeks ago about a 78 that has no power to the ignition block on the fuse box.
I have no power coming to the fuse box on the White with black trace wire. I have obtained a wiring diagram and searched endlessly to no avail. Everything checks out - fusible links are fine, I have replaced the fuel injection relay and the fuel pump relay. Both relays come to life when I jumper the power source from another block on the fuse box, and the fuel pump comes on. I cannot run the car with this setup, I need to get to the root of the problem and find out why I am not getting power TO the fuse box for this circuit. I have tested the ignition switch and when I put the key in the run position, the black with white trace wire lights up just fine. I have checked just about everything I can think of and still have no power to the fuse box for the IGN block. I am going nuts! The motor will kick over, I have spark at the coil and plugs, but nothing to the fuel pump. I don't know what else to tell you I have done, I think I have all the bases covered, but apparently not! I would welcome any and all suggestions, from the more experienced Z buffs.

Many thanks in advance!

Tim

 

[ConorP]

There is an ignition relay also that you didn't mention. It is above the fuse box, beside the connector blocks. It has these colors: Blue/Red,Blue/Red
Solid White,White/Red
Black/White,Black/White
and a bullet connector Black

Check that you have power at both Black/White wires.

> Hi folks,
> I posted a couple weeks ago about a 78 that
> has no power to the ignition block on the
> fuse box.
> I have no power coming to the fuse box on
> the White with black trace wire. I have
> obtained a wiring diagram and searched
> endlessly to no avail. Everything checks out
> - fusible links are fine, I have replaced
> the fuel injection relay and the fuel pump
> relay. Both relays come to life when I
> jumper the power source from another block
> on the fuse box, and the fuel pump comes on.
> I cannot run the car with this setup, I need
> to get to the root of the problem and find
> out why I am not getting power TO the fuse
> box for this circuit. I have tested the
> ignition switch and when I put the key in
> the run position, the black with white trace
> wire lights up just fine. I have checked
> just about everything I can think of and
> still have no power to the fuse box for the
> IGN block. I am going nuts! The
> motor will kick over, I have spark at the
> coil and plugs, but nothing to the fuel
> pump. I don't know what else to tell you I
> have done, I think I have all the bases
> covered, but apparently not! I would welcome
> any and all suggestions, from the more
> experienced Z buffs.

> Many thanks in advance!

> Tim