Nistune. Been done before. Z31-32 ecus have been running L28e/t for a while now. You dont search or read much do you?

 

Here's a link to one of the more popular programmable EFI systems.

http://www.megasquirt.info/

heroe needs a Midol.

 

Try reading PDX280, he already mentione MS.

 

but those will not plug into the wiring harness that is on your car right now will they???

Megasquirt has to be spliced into the old wiring and it is not just a weekend job.

I am talking about something that has the same 35 pin connector and plugs right in place of the old one.

That NIStune looks sweet. I have never heard of it before. It looks however to have its limitations. Do they have the different models because there is different type of connectors or because the different engines.
If its because of the different connectors that is exactly what I am talking about making... or having made.
if it is because of different engines then what happens when you put a modification on???
I did not see a 280z on the list they had. maybe I just missed it.

 

cgsheen, a member here is using the 300zx ECU with nistune on his 260z as we speak. I guess you dont know, but the 300zx has the same ECU connector as the 280zx ECCS. Its close on a turbo zx, you have to move some wire positions. I see what you are saying, its not something you plug in and drive off. Maybe a reason being not many want 30-40 year old wiring anyway. So buying a 15 foot harness that you can crimp and solder new connectors on looks like a brunette in a thong.

 

MS does not Repeat Does not need to be spliced into the old wiring. You can get the standalone harness that you just wired to the sensors and the injector plugs. Its actually very simple and would require no extra trouble designing a new ecu.

 

You are playing medic with your wiring now. Wouldnt you rather have something new if you are upgrading the EMS?

 

Ya, new wiring would make since. just trying to think outside the box. MS might be very simple, but it sure does not look that way. Well thanks for the information, now I know its a waist of my time and I can get better sleep at night.

 

Its not as simple as it reads on their website. If you look at the EMS posts for MS at hybridz.org you see that people often have problems with the tune, or install. That is why my MS project is slow going. Im weeding out a lot of problems before I even get going! I definately need guidance on this one. Matt, of DIY autotune lives in the same town as me. We already had small conversation. I expect I will be talking to a handful more too, just to get going.

 

well I guess that would be an advantage of having a programmable ECU that has the same base mapping. there would be a lot less tuning to get it out on the street.

 

Yep. The z31 ecu once wired in will start up and run the l28 with a couple parts like a MAF and what was it... CAS? I forgot. Your car is already running better there. Modify the motor, plug in new values with Nistune. Flash the ECU. Its kinda neat. Not as flexible as MS though I would imagine. MS has a built in MAP sensor so no more AFM/MAF! The only thing I want to see MS do is add their own controller like SDS. They are kinda there with megaview but not fully. I didnt realize the importance of it untill I read about a bad com port tuning nightmare. (3 year MS install) The lappy you tune with is another variable. I dont like variables.

 

variables suck

 

Have you read about JWT ECUs? Look up Jim Wolf. Kinda what you are talking about. I dont know much about them. May be what you are looking for.

 

Ya, but again, I dont see anything for the 280z.

 

No matter which scenario you choose it comes back to the same thing. Radical change. No magic plug in. You can still get good results working with the old EFI. You talk a lot about efi. You never mention Hitachi SU type carbs or Triple mikuni carbs. Why?

 

I have always worked on fuel injection. The only car I have ever worked on that had carbs was a Ford Galaxy 500 and I didnt even do work on the carbs. So, I am just more familiar with fuel injection.

 

True plug & play = no mods, no replacing sensors, hooked straight into the EFI cabin harness connector.

With the above said I believe the problem lies with OEM sensors designed 30 + years ago for use with transitor board ECU's. Some of the input signals may be very difficult to process, have extreme limitations or just not compatable to a modern CPU equipped digital engine management box.

 

"but those will not plug into the wiring harness that is on your car right now will they???"

Megasquirt 1 was used on at least half a dozen stock harness applications that I did.

Like previously stated, you don't read much, do you?

 

And yes, the effing 29 pin Bosch connector. Some of us didn't like the hokey DB36 pin connector and had plenty dead S30 and EFI S130 ECU's laying around to pinout on a Plug-n-Play harness.

There is no such thing as "like Megasquirt, but without the work"

What an incredibly obtuse, slothful comment to make!

If you don't want to work, you don't want it.

Like they say, wish, want, and dream in one hand and shite in the other...see which gets fulfilled first.

 

Tony D.
I am talking about a system that plugs right into the existing harness to where you do not HAVE TO replace anything under the engine if you would not want to. however, as time goes on, if you wanted to remove the AFM, or the TPS and replace with more modern parts it would be an easy change.

Something that had the same base fuel mapping so the tuning time would be greatly reduced.

I have no doubt that with a few weeks of reading, I could figure out MS and be able to install it in my car. But again, that takes time.

I have been trying to read up more on MS, there is a ton of information and so far, I have not seen anything like what I am talking about.

I agree using the old wiring would not be the best idea, 30 year old wires on a new system could have its limitations

I agree using the old sensors would again, have limitations, but that is one of the things I was kind of getting at. You plug it into your stock system and then one by one replace old sensors with new ones. that way it does not have to be done all at once, you could take your time.
This would be great for people who didnt always have a lot of time to work on there car but wanted to upgrade. however in the long run it would take just as much time.

And I have worked since I was 16 putting my self and wife through college plus an engineering degree and now am a Pilot in the Army. if there is anything I am not it is slothful (Maybe my comments, but even then I am trying to make an idea, its what you do when designing something new). i just find the fastest and easiest way from point A to point B.

 

PnP is pretty common for newer more popular cars. High potential sales numbers. The 280Z is low potential so will probably never see one.

http://www.diyautotune.com/catalog/megasquirtpnp-c-40.html

 

PnP is pretty common for newer more popular cars. High potential sales numbers. The 280Z is low potential so will probably never see one.

http://www.diyautotune.com/catalog/megasquirtpnp-c-40.html

Found this thread and wanted to explain how we come up with the MSPNP cars, as you may have noticed a couple other ones there that you may wonder how much demand there could be for them. Some we built because we happened to have the test car on hand and it seemed easy enough (the Toyota 4AGE, for example). Others were launched with a group buy. So far, we haven't managed to track down a source for the '80s era Z car turbo ECU connectors, but if there was enough interest and we had a junked ECU to check to see if we could find identifying marks on, we could look into it. (We know where to get the connectors for the non-turbo models, as they're a common Bosch part.)

Although, as others have noted, the factory wiring harnesses may not be in good condition (although it wouldn't surprise me if they are in better shape than some of the 240SXs; Nissan picked an ECU connector for these cars that aged very poorly). We are talking about one of the oldest sets of EFI cars still on the road.

 

I love MS and once you do one install its easy after that. The hardest part is getting the tune just right. I had mine setup for street and another tune for performance. It was easy to swap the tunes, just turn off car load new tune and start back up. Plus the ability to upgrade turbos, FMIC, ect is a beautiful thing. Heck if I could toss MS on my 2012 Sentra then I would.... Stupid warrenty things

 

You inspired me to go forward with MS. Just wanted you to know I was listening all these years. Thanks. Nice to see you posting. BTW... Where do people in Las Vegas go for vacation?

 

I'm about to MS X 2.My 810 DD and my wifes LZ-23 620.The laptop is not a variable-it's a tool.

 

Tool/variable. Just a matter of quality control that seperates the two.

 

Walkerbk, I see how it can be read as slothful and unresearched. Like me, you tend to blab as you learn. At least you are out there thinking about it though, and are excited about the Z. A bunch of us have done, and are about to do MS. You have the chance to read the stories, conclusions, and watch some of us do it. Learn from our mistakes and take note of our success. You got some great info in the recent posts. The people posting have a lot of knowledge they are passing on to you.

 

Thank you everyone for the wealth of information. It is all very helpful and I have a LONG way before I even think about installing an after market system or trying to upgrade the EFI system that I have now. I am sorry if I angered anyone with any comments.