Z31 ecu question

Post by **barcode** » Mon Oct 02, 2006 8:18 pm

well, my freind has an 88 NA 300ZX and he is buying an engine from an 85 turbo 300ZX, and im going to put it in for him, but the only swaps i have done are on my 240, sot the main thing i am worried about is the ecu swapping,, I need to know if the ECU will plug staight in or if i will have to repin it. If so, then does any one know where i can find a digram that shows what i would need to change. Or and info that anyone thinks is important about this swap, thanks alot in advance.

Post by **winez31** » Tue Oct 03, 2006 2:29 am

you wont have to repin it

Post by **barcode** » Tue Oct 03, 2006 4:56 am

thanks man, if anyone wlse has anything they feel importand in this situation feel free to throw it in. thanks alot

Post by **evildky** » Tue Oct 03, 2006 6:31 am

look around at AZ-Zbum 's posts, I'm sure he has all the detailed info, but one biggie is the crossmember you need the turbo crossmsmber as the engine mount is in a different position due to the turbo being in the way

Post by **barcode** » Tue Oct 03, 2006 7:01 am

thanks, he was planning on getting the crossmember with the engine, and i saw something about lengthening the alternator harness cause on the alternator on the 85 NAs is on the driver side, well my freinds 88 NA already has the alternator on the passenger side, so there would be no lengthening rigtht.

Post by **AZ-ZBum** » Tue Oct 03, 2006 7:12 am

That is correct.

And for more information:http://www.redz31.com

Also, I don't believe you'll have much to worry about with the wiring harnesses, but you can always double check by comparing the information in the factory service manuals. Download them here:http://www.carfiche.comThe 84 should be exactly the same as the 85 manual.

Post by **barcode** » Wed Oct 04, 2006 9:36 am

thanks alot guys, the car is a 50th aniversery, so i think that means its either 83 or 84, but the guy said it was an 85. Maybe its a 50th knock off, it looks rally good, only a few rust spots on the body, and they are all small, except the hatch has some bad rust on it. my freind was thinking bout rewiring that car, but we will prolly just use it as a project.

Post by **barcode** » Wed Oct 04, 2006 9:40 am

ohh, and thanks for the sites.

Post by **AZ-ZBum** » Wed Oct 04, 2006 10:39 am

50th Anniversary Edition = 1984.

more info:http://www.az-zbum.com/information.50th.ae.shtml

Post by **Racinjitter** » Thu Oct 05, 2006 12:36 pm

winez31 wrote:you wont have to repin it

You may want to look into the ecu wiring diagrams again here is a recent post in regards to it... http://z31.com/board/read.php?id=236583But then again like AZ said look into the FSM's to confirm this is correct. This link was for an 88 N/A ecu to tune for the turbo, not swapping the ecu.
Modified by Racinjitter at 4:06 PM 10/5/2006

Post by **winez31** » Thu Oct 05, 2006 2:50 pm

i never repinned mine and it seems to be running fine

Post by **barcode** » Sun Oct 08, 2006 7:45 am

thanks for all the help guys, really apreiciate it.

Post by **AZ-ZBum** » Sun Oct 08, 2006 8:25 am

winez31 wrote:i never repinned mine and it seems to be running fine

Yeah. I would really listen to what this guy has to say about fixing a car. He can't even fix his own properly.

Read these threads he started:zerothread?id=187299http://forums.nicoc ... ?id=193876

Post by **winez31** » Sun Oct 08, 2006 3:19 pm

opening your big mouth again why dont you just leave it stock you seem to be good at that because your to much of a ***** to to mods and tune. hey let me think back last time you started **** o yeah the mods bitched you out so shut the **** up. oh and by the way i think you must have a crush on me that you look for all my posts. its kinda freakin me out. , and you you were wrong about the steering by the way.

Post by **DustinZ** » Sun Oct 08, 2006 3:58 pm

What Z-bum is saying is if you have the experience then post and help someone out. If you don't have the experience then don't give any advice. You can really mess someone up and cause alot of damage that might be potentialy costly to some of our members. Try and not give input if you are not sure or don't know. Z-bum trys to help anyone with a tech question as do I. I only respond to help people if I am 100% sure I am giving the right advice. I have been working on Z for over 15 years and there is plenty I still don't know. Lets keep the crap down and no more Sh@# talking please.

DustinZ

Post by **winez31** » Sun Oct 08, 2006 5:51 pm

me and az have history if you search its the longest post ever on classic z. no disrepect to you but i didnt repin my ecu and it works fine. so i posted it. your relitively new to this site. so you might as well exspect the drama between us to, and the psts of mine that az posted are before i changed my ecu and my car works fine now. to prove a point when you get your ecu tuned my jwt the want an 88na ecu. which is what i have and it wasnt repined.

Post by **AZ-ZBum** » Mon Oct 09, 2006 12:08 am

The history is you're an idiot and don't have a clue what you're doing. You bought your car the way it is and don't know what the hell you're doing with it.

As far as the JWT ECU, they are tuned for a specific year and with certain options. Since he's talking about an NA to turbo swap, there are other factors to figure in. If you can't figure out electronic fuel injection and want to swap to a carbed setup, then you need to shut your dumb *** pie hole.

History? Yeah. You're dumb and you still haven't learned. And I'm going to call you retarded every time you post something stupid. Get used to it or stop posting like you know something when you obviously don't have a clue.

Post by **winez31** » Mon Oct 09, 2006 3:06 am

its funny you talk **** online i bet you 10000bucks you wouldnt say **** to my face because id lay your *** out you ****ing ****. o and by the way i wanted carbs because there easier to tune f*****. take your own advice you were wrong when it came to my steering you were wrong when my car broke before.

Post by **barcode** » Mon Oct 09, 2006 5:39 am

man this is great, those were some useful post lol, maybe not useful, but really entertaining, lol

Post by **AZ-ZBum** » Mon Oct 09, 2006 8:24 am

big talk from a little boy. and I'll see your 10,000 bucks and raise you 1,000,000 million dollars you wouldn't be able to help anyone with any real issues. You can't even figure out your own car. So I wouldn't have to say anything about you being an idiot. Because then you wouldn't be spouting off stupid crap.

Knock my *** out? I've seen pictures of you. I'm not even close to scared. You're the one who is e-thugging. I'm just telling it how it is from the posts I've seen by you. And all the posts I've seen by you are asking questions about stupid crap that most people are able to figure out on their own without a message board.

As far as me being wrong, I know what I've posted. I know what you've asked about. I know that you wouldn't admit that I was right since it would mean you losing face. But who are you kidding? You've lost face a long time ago.

Post by **barcode** » Mon Oct 09, 2006 9:20 am

you guys got HUGE E-COCKS hahaha, j/k, i look in the 88, and 84 FSMs but i never found a really good diagram of the ecu pinouts, i've tried searching around for one, but no luck with that, so i guess ill just try it and find out.

Or, i could look at the harnes on the 84, and the harness on the 88, and see if all the wires are the same color, and in the same place. I think that would work.

Post by **winez31** » Mon Oct 09, 2006 9:22 am

blah blah blah ive done an n/a to turbo swap and we just used a turbo ecu and it ran fine and thats what im sticking with prove me wrong and ill shut up. oh and by the way az is like 35 and his insults are about peoples moms wow really mature.

Post by **DustinZ** » Mon Oct 09, 2006 10:14 am

Barcode, As long as you are using the same harness and ecu that goes with the motor you will be fine. There is a problem with interchangability in the 88-89 ecu's. They run high impedence injectors. As long as the computer and harness goto that engine you will be fine. There shoud be no complications. The 88 harness should also work. Z-Bum is one of the best resources you could ever possibly have and he proves that time and time again. If you ever need me email me at [email protected]. Also post for Z-bum and he will always answer with good and correct info.

DustinZ

Post by **barcode** » Mon Oct 09, 2006 2:51 pm

well, the plugs on the two ECUs are completley different, so I am going to either have to cut the 3 plugs, and match all the wires, so that i can use the ECU i already have, or find and 88 turbo ucu, and put the 6 OHM resistors in the injector wires.

do yall know if the 88 ecu will be compatibal with the T3 turbo on the 84s without a problem, or will it be giving too much boost, and not enough air.

Post by **AZ-ZBum** » Mon Oct 09, 2006 2:52 pm

winez31 wrote:blah blah blah ive done an n/a to turbo swap and we just used a turbo ecu and it ran fine and thats what im sticking with prove me wrong and ill shut up. oh and by the way az is like 35 and his insults are about peoples moms wow really mature.

Man, you are just stretching the bull****, aren't you?

Okay, prove you wrong....

Hmm....

If this is your car in this thread:zerothread?id=183384

Then that was a turbo car to begin with. 5 lug wheels and turbo pinstriping give it away.

Now, where am I making fun of your mom?

Post by **barcode** » Mon Oct 09, 2006 2:52 pm

ohh woops, which of the 2 ways i listed ^^^^ do yall think would be easier.

Post by **AZ-ZBum** » Mon Oct 09, 2006 3:11 pm

barcode wrote:well, the plugs on the two ECUs are completley different, so I am going to either have to cut the 3 plugs, and match all the wires, so that i can use the ECU i already have, or find and 88 turbo ucu, and put the 6 OHM resistors in the injector wires.

do yall know if the 88 ecu will be compatibal with the T3 turbo on the 84s without a problem, or will it be giving too much boost, and not enough air.

Hmm... According the the FSMs in front of me, the ECU connectors should be exactly the same. I'm not going to go through all the wires, but you can look them up on page EF&EC 8-9 of the 84 FSM and EF&EC 12-13 of the 88 FSM.

Swapping the Engine harness is actually quite easy. Since the ECU is located near the hole the wiring harness goes through, all you have to do is disconnect the harness from the ECU and pull the three connectors out of the hole.

The simplest way to work it is to use the harness for the ECU you are using. The sensors on the engine can easily be swapped around as needed. Moving pins, cutting and soldering new wires, etc is annoying and time consuming.

Post by **barcode** » Mon Oct 09, 2006 4:33 pm

i would ust the other harness, but there are alot of cut wire, and the bottom plug on the 88 is purple, and it looks a bit different, i never got to actually test fit them, but i did look and some of the wires are missing/ different. but that might have to do with the 88 being auto, and the 84 being manual, we are doing a 5 speed swap with the turbo swap.

also, every 84 FSM i download the page where it shows the 3 plugs is missing half of it.

Post by **winez31** » Tue Oct 10, 2006 1:54 am

i'll admit that iom wrong i read the post wrong i thought it was the same year na as the turbo motor my mistake. but still as far as the mom thing this was posted by az:You can ask your mom. I'm not small.I tore your mommy a new one.

hahahahaha.

Time to ask Greg for mod rites just so I can delete this lame *** thread.

Oh... Hitman....

--------------------------------------------------------------------------------

Z31 RegistryZ32 RegistryI'm not really an ***. I just play one on the internet.

Post by **barcode** » Tue Oct 10, 2006 6:02 am

hey wines, you ride bikes..... if you do then i bet you can figure out where my name came from, the kind of bike i got, a T1 barcode, woot woot, bad ***....

anyway, i think i may have to swap the harness, but on the 84 someone cut it a few times, the stupid bastards, guess ill have to break out the soldering iron.

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