Running rich, fuel pump constantly runs

[Cethern]

SteveJ

I'll try and answer your questions.

1, I knew that the blue wire went to the - side of the coil and to the ecu & tach.

2, I got the ZX distributor off ebay and one from a junk yard, the one I'm using is the ebay one.

3, The ZX distributor I'm using is a working unit, before I installed it I could spin the shaft by hand and get spark from the coil wire also number one plug which is where I had the timing light hooked up to, and got the car to run on what little gas I could get into the intake.

4, Yes I have a copy of the FSM for the 1975 280Z and a copy of the Fuel Injection "Bible"

5, No offense taken you don't know me, and having been a Service Manager, a GM line mechanic, and turning wrenches for most of my life, I can read and understand a wiring diag, the problem is that some of the diagrams don't have the wire colors or I cannot get them to focus when I zoom in.

6, I installed a Accel coil.

7, No, none of the wires are grounded and are taped up.

I hope that answers your questions. :-)

[SteveJ]

Thank you for taking my questions the way they were intended. It can be a challenge to help people out online.

I asked #1 because the ZX ignition module (and coil) shouldn't be grounded at the distributor, but the distributor mount is grounded to the chassis.

For #2 & #3, I should have clarified that I was also referring to the ignition module, but if you got it to fire with the distributor, there's a good chance it's working, too. You can pick up spare modules from Rockauto if you want a safety margin.

For #4, good, I just want to make sure that if I refer you to a section of the FSM, you can find it.

For #5, I pulled up the 75 wiring diagram from Phil's site. Grab it. You can zoom in on it, and it's one continuous page, so it's a lot better than trying to use the one with the FSM download.

I read through the full write-up for the ZX distributor swap. It's a little confusing, and the person who did the write-up uses techniques that I would discourage. Anyway, as I described before, the black/blue wire from the ignition switch and the black/white wire from the ignition switch should both go to the positive terminal of the coil. From there, you should run a wire to the B terminal of the ignition module. The blue wire should go to the negative terminal on the coil and on to the C terminal of the ignition module.

You have the TIU unplugged and taped up, so that is good. You may want to try swapping ignition modules between your two distributors in case the one currently installed is damaged.

If you think you see ANY wires I haven't accounted for, please list them. This can be a fairly easy swap. Some detail was missed. We just have to figure out which one.

[Zed Head]

Did you use the ZX distributor mount? Maybe your timing is off.

As far as the grounding, I meant that the module transistor needs to sink the current somewhere to charge the coil. Typically it's through the mounting screws or a dedicated ground wire. I can't find it explicitly called out in any diagrams. But the diagram only shows two wires to the module, and implies the red and green wires are connected, but doesn't show them. Doesn't show a 5th ground, wire. For example, the GM HEI module, which is known as "4-pin module" doesn't show the 5th wire either, but it is critical to operation. I think that the simplest ignition module wiring you can have is two wires from the pickup coil, one wire to positive power, one wire to ground the negative side of the coil, and the ground through the module. The module has to have a ground somewhere and it can't ground through any of those first four wires. Therefore, there must be a "hidden" ground. Has to be through the mounting holes or some not-so-obvious contact point.

Just trying to add some clarity, with lots of words...

[Cethern]

Okay I took a couple of pictures, I went over everything again, I can pull the distributor out and spin it by hand and get the coil to fire, I even got it to turn the motor over a little bit while spinning the shaft.

Yesterday while doing the same thing I would ground the distributor to the intake, in doing this it would spark while turning the shaft. But after I would install the distributor I couldn't get any spark.

So I made a ground wire from the adapter bolt to the module bolt. Even though everything was clean it didn't get a good ground.

I'm using the adapter from the junk yard distributor. The shaft on that distributor is frozen in place.

I probably should have gotten a rebuilt distributor.

And if I can get it running and get myself back to Colorado I'll do just that.

[Cethern]

Uploading these from a phone sucks

[Cethern]

Maybe this will help.

https://www.youtube.com/watch?v=hcI0IZg9RuY&feature=youtube_gdata_player"]http:// https://www.youtube.com/watch?v=hcI0IZg9RuY&feature=youtube_gdata_player