Cannot get injector pulse - passes EFI bible tests!

[Zed Head]

I don't see the other ground wire for the EFI system.  It could be attached somewhere else but it came from the factory with a plastic connector, to a pigtail at the battery negative post.  Somebody has monkeyed with yours, that battery cable to the firewall is way overkill.

Edited December 21, 2017 by Zed Head

[S30Driver]

This one under the philips screw.

[Zed Head]

Found a picture on zcar, from Echutton.  I think he's a member here.  http://www.zcar.com/forum/10-70-83-tech-discussion-forum/398985-78-datsun-power-line-circuit.html

 @echutton

[Zed Head]

2 minutes ago, S30Driver said:

This one under the philips screw.

There's one at the battery too.

[S30Driver]

You''re  of course right Zed,  sorry for the confusion.

[Dave WM]

I "think" the EFI ground maybe the one under that same bolt shared by the monster on the fire wall.

[Zed Head]

Only MrChefur knows for sure.  Meter, meter, pumpkin eater.

[MrChefur]

2 hours ago, S30Driver said:

Yes,  you are right Cliff.    The circled EFI ground in your picture.

 

3 hours ago, S30Driver said:

If it were mine,  i'd be cleaning & brightening up that important ground on the intake manifold.    In the pix,  looks like it has not been touched.

 

2 hours ago, S30Driver said:

This one under the philips screw.

I cannot say how grateful I am for everyone's help. That was it. I cleaned that ground and it fired right up after getting all the air out of the fuel lines.

@Zed Head, I'm definitely going to do like you suggested and check everything now. I'd rather not have this again.

Thank you so much everybody, I hope you all have a very merry Christmas.

[240260280]

I think this was mentioned in post #6... but what do I know?

[MrChefur]

Just now, 240260280 said:

I think this was mentioned in post #6... but what do I know?

You're right - it was. I misunderstood and thought you meant the other ground cable going onto the intake manifold, to the right side in my pictures. My bad.

[240260280]

You pursued and resolved it! I' happy for you!  A nice running Z for Christmas.

[siteunseen]

10 minutes ago, 240260280 said:

I think this was mentioned in post #6... but what do I know?

I knew you had mentioned it but didn't read back far enough.  I caught S30's post and went from there.

That's what happens when you don't keep up. 

Glad it came back around and was resolved.  Early Christmas present I'd say.

I love this forum!