Just saying thanks in adavance for any help given.

I plan on changing my 1999 Cali spec maxima over to 5spd. But I was wondering if a 97 5spd ecu will affect anything that my ecu is set up for. I know I will be changing the whole ecu, but i'm just wondering if there are any probelm I might encounter.
I am a good tech. with mechanical issues. It is just the technical electrical side of it I'm stressing over.
Thak you again

Bill

 

well Bill to put it simply your SOL. Having a 99 means your ECU has a totally differnt setup than a 97. You will not be able to just swap ECU's because it will not run . Now i know alot of people like to talk about swapping pins ect but i know you need to ground like 4 differnt pins and swap a bunch but then i still dont know that it will work right. I personally wouldnt worry about swapping ECU's as i do have a 95 Automatic ECU in my 97 5 spd and it works great. So if you do swap to a 5 spd your car will run just fine but you will throw the CEL for transmission sensors that arent there. U also may have to get a manual TCU not sure though.

-Ryan

 

i didn't think manuals had a TCU?

 

woops lol my bad

 

Don't bother. Auto ECU will be just fine in your 5spd.

 

How is he going to pass emissions with the CEL on? Here if you pull in and you CEL is on, they won't even test it.

 

NO,NO,NO. Anything other than your stock ECU your car will not run. Look at your key, there is a a little chip in it that is specifically programed to work with your ECU mean no one can start your car without the factory key. 1996-1998 ECU's are also diffrent pins are in diffrent locations. This will not work.

 

zack- i dont think you read right, hes converting his auto over to 5 spd thus wants to know if he can get a new 5 spd ecu to put in there. He already has a Auto ecu as thats what he is now. And if what you say is true about the chip being only for your car than how can anyone else use your JWT ecu?

 

JWT ecu is still your own ecu to begin with.

To original poster: Keep your stock ecu.

 

Actually the only ones that can be reprogramed is the 95/96. I know zach used a 96 ecu to be reprogramed and ?rewired? to work. Either way orig poster stick with stock.

 

Alright. sounds good to me. I do have a programer to make the ecu think those sencors are fine. I like that everyone had the same answer , so it makes me more confident in my decision.
Also to let you know that my car doesn't have TCU or ABS to begin with. So hopefully that won't be a problem for me. Thanks again

BIll

 

what else can he do?

 

No it is a computer system I have. I can chage fuel maps things like that. I recently made my car think the o2 sencor was fine when I went thruohg emissions. I know I should of changed it but it was backorder and happen 2 days before my test.

 

How about timing maps?

Ever think of tuning, since you can control a/f.

You sure it's not just an o2 simulator.

 

never tired that. I just got it about a month ago and use it more at my friends speed shop than my own shop.

 

Does this system have a name or is it custom?

Where does it plug into in order to modify existing parameters, or must it be hardwired (a la SAFC/VAFC )?

 

id also like to know

 

I'm confused. You can program an ecu with this special thingamazig that no one knows about but you didn't know you can just use your stock ecu for your swap?

P.S. I'd like one of those thingamazigs as well.

 

Yeah you are right i didn't read it correctly. He can use an auto ECU for 5speed.I was just trying to say he can only use his specific ECU with his car.
My JWT ecu works because it is a 1996 ECU with pins swapped to run a 1999. My immobalizer doesn't currently work since i am not using my 1999 ECU. My JWT 1996 ECU will run any 1999 5speed maxima.

 

If you're an auto, you do. It's directly beneath the BCM, behind the radio.

 

The system I am referring to is made by OTC. Model number I don't have in front of me at the moment. It plugs in front of your OBD2 port. I am sorry that I didn't know that I was able to use my own. I am looking at purchasing a 5spd swap from a CTmaxima.org member and he had a 97 ecu. with the setup. I will get more info. for everyone about the program I have. Like I said i just got it myself and I am playing around with it. I would hope I can change timing with it .

 

That's why I told him to keep his stock ecu..........................................