Electrical Gremlin On My Back! HELP!!

E8 - Pin 7 has power.
It goes through IC4.
So I'd say it is plugged in. Maybe not good though?

 

Well it's either a problem in that connector, a broken wire, or a mistake in testing becuase the EFI Fuse supposedly has power.

 

OP, check the IC4 connecrtor.

 

Have we ever checked power to the EFI relay? I can't remember?

Might not hurt? If no power to the EFI relay, no power to the IC4.
It's spliced at the relay.

 

At this point, might as well check it all.
Pull the EFI relay, Turn the key on.
See if you have power to pin #5.

 

Power confirmed at EFI fuse
Power at Pin #1 at EFI relay
NO power at Pin #5

 

Do you have power on Both sides of the EFI Fuse with the fuse installed?

 

Scratch that I DO have power at Pin #5 at EFI Relay

 

Power now confirmed at Pin 5 EFI Relay

 

Ok then we need to go to Connector IC4 and see what's up there as well as figure out those grounds.

 

So for some crazy reason I have 3 wires coming out of IC4 not going anywhere...cut off in other words
2 gray
I black/yellow

 

Thats interesting, what pins are they on?

 

Black/yellow Pin 30

 

Grays all wrapped bundled in there can't really tell

 

Think I found the other end of the blk/yl

 

As of now, the only Black/Yellow I see goes to the ground side (controlled by ECM) of the fuel pump relay.
But I'm still looking. Might be more than one Black/Yellow?

 

I got nothing better to do.
I guess I'll map out the IC4 connector......lol

 

Do you have power to IC4 pin 12?
If so, trace the other side back to the ECM and see where it's cut/broken.

 

Well, the dome light goes through the IC4, and it has an active short........
That's IC4 pin 10 (Red wire)

We got some work ahead of us. But we'll get there.
Hang in there OP.

We have a connector issue.

 

Thanks guys frustrated but don't know what I'd do without yall. Appreciated more than you know