After figuring up the price on what I want to do, looks like I'm keeping the fuel injection. It is kinda cool, a 83 model car with fuel injection. I'm sure I'll learn all about it and what I can do to make it run like a v8 without pouring thousands of dollars into it. I just went out and started it, got sea foam in the tank cleaning it out. It's 29 degrees and started right up, idling decent, just won't rev up quickly, tap the gas and falls on its face.

11 minutes ago, Stick figure said:

I'm sure I'll learn all about it

A 280zx has a analog computer, it computes an output signal from many different signals it gets from de sensors to run the engine.. but it does not have a actual ECU.. (I'm glad it has not!)  this system was and can be still reliable.  (an ECU has a clock signal and a processor, this can not be found in any 280zx..)

33 minutes ago, Stick figure said:

After figuring up the price on what I want to do, looks like I'm keeping the fuel injection. It is kinda cool, a 83 model car with fuel injection. I'm sure I'll learn all about it and what I can do to make it run like a v8 without pouring thousands of dollars into it. I just went out and started it, got sea foam in the tank cleaning it out. It's 29 degrees and started right up, idling decent, just won't rev up quickly, tap the gas and falls on its face.

The EFI guys here can help you get it sorted. Just provide lots of details and some pictures

Edited November 12, 20195 yr by Patcon

Well this EFI guy can tell you that by 1983, the ECU's WERE computer controlled.

6801 microcontroller running at 4MHz

I don't know when the transition officially occurred, but by 83, they were programmed devices.

Are we mixing the ECCS system with the EFI sysstem?  The ECCS system was used on the turbo engines.  Nissan went full ECCS on all engines in 1984, from my understanding, at least for the Z cars.

Google found me an old article about it.  https://trid.trb.org/view/183990

2 hours ago, Captain Obvious said:

Well this EFI guy can tell you that by 1983, the ECU's WERE computer controlled.

And again i learnt something!

I've learnt in those years early '80 to program the 6802 …. 1 more than the 6801  haha... funny!   does the NA also have the 6801 or only the turbo version?  The turbo came only in 1983 in the Netherlands!  We had no 1981 or '82 turbo version..  they were all NA.   the turbo was an extra car imported in 1983, and 1984 came the first 300zx's.. 

NA was EFI, turbo ECCS,  They're both shown n the 1982 FSM. 

ECCS

EFI

Just realized that this thread is in Technical Articles.  Probably shouldn't be.  @Mike

Thank you 

22 hours ago, Zed Head said:

Are we mixing the ECCS system with the EFI sysstem? 

The ECU I have here is from a non-turbo 83 with an auto trans. I believe it's the original ECU from the car.

I'll get the number off the case when I get a chance. And take a pic of the microcontroller.