Hi there

Let's say I get a 99 spec long block + trans + ECU + complete engine harness.

Will I have fitting/connecting issues into a 92 FD?

Thanks in advance for your valuable inputs.

 

What's going on Oliv, this is Herblenny..

Yes, you are going to have issues. mainly because the ECU has a different connectors for interior harness. If you could figure out the wiring and get a connectors, you should be able to.

If you are looking for later 16bit ECU PFC, let me know. I have one of those and will sell it at great price

 

Hi Herblenny, nice to hear from you!

As I mentioned I could get the complete engine harness with ECU, check out the pics:

 

seen it done. 1993 R1 99 spec motor, no problem. they had to cut and extend the j-spec harnes.

 

I understand..

The issue you will have is that 92 8bit harness from the inside of the car will not directly hook on to the 16bit ECU. You would either have to find out what wires are what and get the 2 harness clips that will plug into the 16bit ecu.

I'm having similar issue as I have the black box, PFC that's for 16bit ECU, etc.. It might be similar for you to just use your 92 harness instead of 02 harness you have... Or get a wiring diagram of 02 harness and a clip.. But if you are looking for Apexi PFC for that harness, I have one that I'm willing to sell pretty cheap

 

[QUOTE=Deals Gap Rotary Rally;9628078]I understand..

The issue you will have is that 92 8bit harness from the inside of the car will not directly hook on to the 16bit ECU. QUOTE]

I am kind of confused. If he can get the full 99 spec wiring harness, ECU and motor, how would he have a problem with the 8 bit harness? Unless there are body plugs on the zenki chassis that plug into the ECU.

Unless I am misunderstanding...

 

"zenki" oh no, the 240sx terms are following us!

 

If you go look at your Engine harness and what plugs into the ECU, you'll see what I'm talking about.

 

So basically possible but with some electrical/connection mods, I suspected something like this.

 

Oliv,

Pretty much. I thought about this also.. hence I have a 16bit PFC, engine harness, and black box. After I got it, realized it would be pain in the *** to convert.. especially not knowing which wires are which.. If you know that part and have the two connectors you are missing, than shouldn't be more than a day of wiring.

But easier would be for you to use your old harness and your 99+ long block.

 

Oh know! The Japanese terms are now 240 terms...

Herb, I am still confused. The only thing that I can think might need to happen is adding a couple of emission connections. I have my 2000 engine harness pulled right now for depinning for my single swap. I will take pictures of it and the 99 ECU and maybe you can clarify for me.

Sorry to threadjack a bit but I want to figure out what he is talking about.

 

Non- engine harness connections, 92ish era.....

 

I believe he is talking about the non-engine harnesses from the 8bit not plugging into the newer 16bit ecu (dash harnesses).

 

Ah! Okay. I didn't look at the harness and I didn't realize that the non engine harness plugged into the ECU. It makes sense.

(Image Shack is blocked at work)

And apparently I cannot use know/no correctly!

 

Like other two people have stated earlier, there are 2 connectors that's not part of engine harness that connects to the ECU. If your FD came with 8bit, than 16bit newer ECU will have different connectors to the ECU. If you want to use the newer ECU, than its a no brainer that you would either have to get a connectors and rewire or get the entire 'dash' harness so you could replace the older ones. Also if you have LHD FD and going to do this swap, you would also need to lengthen the wires. Its not a simple job either way. I guess easiest would be someone making an adaptor by finding out a source for the connectors and such. But all this is useless as if you use PFC, all PFCs are 16bit and doesn't make any difference in performance of older vs newer connectors... hence why I say it 'might' be just easier to just swap engine harness instead of doing all this.. especially those whos planning to run single, in that case, the 'black box' isn't even needed.

I was thinking about doing this just to be unique with my Spirit R junk.. but realized I don't have much time these days and decided to just do it later or just get rid of my stuff.

 

I am not doing the swap. My car is a 2000. I was just wondering. Good to know though, especially if I ever have to take all my crap back to the USofA and install it into a 95 chassis.

 

yes, that term is. you can't say "zenki" without Nissan coming to mind in the states. FB, FC, FD

 

Great inputs herb and guys.

This replies exactly to my question: I knew there would not be any pbs to connect engine harness to ECU as everything comes together, but I suspected the dashboard connection issues. Also, even if you get them connected by rewiring, there might be a chance that it's not working properly as the dash board is also different! I'm pretty sure you'd have to change the gauges block: remember these came with boost gauge instead of oil pressure and the speedo and rpm were also different I think...

The better would ba as Herb said to re-use zenki engine harness and ECU or better: a PFC.
Using a 92 ECU with a 99 spec engine would be a shame...
But also with this solutions there might be some surprises don't you think. For instance I know for sure the solenoids for turbo control are different.

To be clear: I don't have this engine yet on hand, just an opportunity I'm considering. It has approx. 40-50 K miles on clock, 125psi on the front face, 100psi on the rear.

 

People have interchanged clusters all the time. I've put 97 cluster into my FD before and worked fine and I'm about to put Spirit R cluster in and just add the boost line.. So, pretty much dash wirings are very similar (maybe 1 or 2 wires are different) from 92-02. Like I stated before, hardest part will be to finding out what wires are what and getting the clips/connectors.

Regarding difference in turbo solenoids from 92 vs. 99 (aka black box). Well, its pretty much the same. So called black box is a compressed vs. of 92-98 solenoid rack. Again, all you have to do is figure out what wires are what and just need to re-wire it if you want to use the black box. There aren't much of a difference between 92 engine vs 99+ REWs. short blocks are 99% the same except for very minor things that are done to the internal of the engine which most people can't see nor tell the difference in performance. And turbos are the same unless it came with 280 turbos. So bottom line, I wouldn't consider it a shame for using 92 stuff on 99 spec engine.. there isn't any difference.

As I stated before, its more for being different (at least here in the states) than anything else.. kind of like putting on a body kit. It doesn't really do **** for the car except it makes it look different.

 

Olivier, looking at your first picture, I think that ECU is 8 bit. If so, the engine is no 96+ spec... be aware.

 

I got confirmation that the sticker on the ECU is N3G1, so definitely a 99 spec.

Anyway I will not go through with this so anyone who's interested in this I can give the link to the sell.

 

Are you looking at this one?

 

Yeah I was looking at that pic, but now I notice the connectors are whte, while on a pre99 they are yellow. Olivier and i mailed about it in the meantime and it's a 99 spec