I need a picture of your intake

[greekmaster]

Thanks to those who helped with my previous posts. Now a new problem. I'm sorting out my vacuum lines and what the previous owner did to them. I understand the basic diagram under the hood of the car, but there are several other vacuum ports that are not addressed in any manuals I have or on the sticker under the hood. Could someone please send or post a few good pictures of a properly setup intake manifold including ALL of the vacuum ports and where their lines go, and if there are any T's or splits anywhere in the lines? Reading about it is one thing, but seeing it is another. I have a 1983 280zx, california model, and all i can find is vacuum charts for a 1982.

And while I'm asking questions, does anyone know what the F.I.C.D. system is? I have a diagram of the engine and emissions control system from a 1982 service manual, but there is no explanation what the F.I.C.D. system is. What is worse is that I don't think I have it on my car.

Thanks for your help.

Nathan

[sblake01]

F.I.C.D. = Fast Idle Control Device. Basically what it does is speed up the idle when your air conditioning is on. I don't own a ZX. I have a 1978 280Z and a 1979 810. There are slight differences between the systems on my cars and ZX's. Also ZX's had two different engine control systems. The regular EFI system, and the ECCS system. I'm not at all familiar with the ECCS. It's more like a modern car with micro processors, crank angle sensor, air/fuel ratio feedback, more valves and sensors, etc. I'm hoping zbane will chime in here since he owns ZX's and seem to be quite knowlegable on them.

[hls30.com]

I've got the '83FSM for the DVD project, I'll see about scanning and posting the appropriate vacuum charts and ficd info at lunch today.

Will

[greekmaster]

Thanks for the help.

The more I try to figure this car out the more I don't understand it. I found what seems to be a vacuum control modulator on the passenger side near the front. It is completely unhooked except for the the electrictrical lines. In the manuals I have access to it seems that the vacuum control modulator was only on the Turbo car, not the N/A. Makes me wonder if this car used to be a turbo and then was switched out. It has the standard ECU and all, but I don't see where this Vacuum Control Modulator comes in to play. Any ideas?

Nathan

[zbane]

I'm hoping zbane will chime in here since he owns ZX's and seem to be quite knowlegable on them.

Stephen, you are too much! I just search and guess and read my FSM (and guess some more).

Right now I can't help with the FSM portion of the question (not sure if my 79 edition would have the answers, anyway) so I think that deferring that portion to Will (who is a ZX genius) would be best.

However, I can provide photos of a mostly not messed with 3ngine bay, so here are some photos of my engine bay (taken real quick 'cause I'm at work).

[hls30.com]

Finally-Lunch was a bust, but I have the "83 FSM in my hot little hands-I'll be scanning momentarily, and posting shortly thereafter.

WIll

[hls30.com]

1) if your vin has a "T" in it, the car was a turbo model.

2) first scans-still looking for the vacuum lines for a NA....

[greekmaster]

Thanks for the pics. I can tell already that there are some difference between our cars, but your gives me a good reference. If Will is out there I await his expertise.

Thanks.

Nathan

[greekmaster]

Looks like I updated my page and post after Will had posted his. Thanks for the diagram. I think that the 82 service manual I have is basically the same, so there we have it. I'll see what sense I can make of it and be back later. Thanks for the help.

Nathan

[hls30.com]

1)Get your vin and lets see if your car was cobbled into an NA.

I didn't find a complete view of the engine with the vacuum hoses labeled. I have to take a little while and put the youngsters to bed, the big little one is ready to lie down and that means I must too. Back in about a half an hour or so-depending on Mr. Sandmans timing... List what you are after, and I'll do my best-but most of the detail of this manual is spent on the ECCS system that was used in the turbo cars-

If my connection times out, I haven't left you hanging...

Will

[greekmaster]

Here goes:

I took off the fuel rail to replace the injectors, so that is gone in the pics. The pictures posted are of the underside of the throttle, the vacuum advance, the EGR and surrounding vacuum connections, and then of the mysterious vacuum control module. How do I hook up the control module? It never appears in any of the service modules.

You can see in the pic of the EGR that I have some unused and badly plugged vacuum ports. Any idea of where they go or what was supposed to be there?

I checked the VIN and there is no "T" in it, so I don't think I have a hacked turbo.

Basically I need to see a good example of what a good vacuum routing looks like so I can compare it to mine.

[greekmaster]

Almost forgot. In the last picture you can see the vacuum control module. Is it needed? Why does it only appears in the routing diagram for the turbo model? In the manual I have it is supposed to go to the EGR as well as the auxiliary air control valve. It has four vacuum ports on it, so it is trying to be a big player in this vacuum system.

Thanks again,

Nathan