DIY Consult program thru PC Connection

Post by **vad1964** » Mon Jun 23, 2003 9:56 am

Hello,

I'm interested in solving of the problem, too. Unfortunately, I can't find any information of the Consult data port.

Herehttp://www.wmrc.com/businessbr...8.pdfthey mention 9600 Baud rate but I'm not sure we can trust them.

I had a quick look at the signals with the oscilloscope but there was no activity on the Rx/Tx/Clk lines. All I can guess from my research is that Clk line seems to be an input (active high), Rx - input (active low), Tx - open-collector output (active low). Logical evels are most likely TTL or CMOS (3.3 or 5V). So, direct connection to RS232 seems to be a bad idea.

Then I tried to feed 9600 Hz clock to the Clk line. Still there was no activity on the Tx line. Maybe ECU has to be turned to the diagnostic mode first, may be there is no data downloading without request to ECU.

Any help or ideas are appreciated.

Post by **Eswift** » Mon Jun 23, 2003 9:56 am

I regret that i cant be of any more help, but I am pretty certain that the ECU doesnt need to have the diagnostic mode selected for the consult to work.

Post by **Eswift** » Mon Jun 23, 2003 9:56 am

what about seeing if Techtom would help at all. They have a scan tool which has cartridges for most nissan models...

not such a great translation, but it suffices:http://babelfish.altavista.com...ja_en

Post by **vad1964** » Mon Jun 23, 2003 9:56 am

Eswift wrote:I regret that i cant be of any more help, but I am pretty certain that the ECU doesnt need to have the diagnostic mode selected for the consult to work.

Hi Eswift,

Why are you so sure? Consult tool can select the diagnostic mode automatically, using "Check to ECCS" signal (pin 6 of the connector).

As for company making HDM-2000, it's pretty difficult for me to contact to them from Russia. And I doubt that they'd release any information that helps them to make money.

Post by **elwesso** » Mon Jun 23, 2003 9:56 am

Maybe if we showed enough interest we could get them to make something for us......

And I believe that when you hook a consult to the connector, and then turn on the consult, it automatically turns it into diagnostic mode....

Post by **Eswift** » Mon Jun 23, 2003 9:56 am

you guys are probably right, i just was under the impression that, at least when the diagnostic mode is manually selected with the screw on the ECU, the engine couldnt be started.

i still think the best would be to contact the conzult guys, and stress that this isnt for a 300ZX, so they arent loosing any business...

on a side note, i checked out the SAE website for any standards or even technical literature that might help...nothing.

Post by **vad1964** » Mon Jun 23, 2003 9:56 am

Eswift wrote:you guys are probably right, i just was under the impression that, at least when the diagnostic mode is manually selected with the screw on the ECU, the engine couldnt be started.

It's not right. At least on my KA24E I can start the engine. Furthermore, I have to do it if I want to enter to the O2 sensor test mode. JFYI.

Post by **vad1964** » Mon Jun 23, 2003 9:56 am

Eswift wrote:i still think the best would be to contact the conzult guys, and stress that this isnt for a 300ZX, so they arent loosing any business...

I'm rather pessimistic on it but it would be nice if anybody would try to ask them. It's technically impossible for me to call them.

By the way, I'd like to have a look at the ConZult software. Is it possible to get a copy?

Post by **elwesso** » Mon Jun 23, 2003 9:56 am

Post something in the Z forum.......

Post by **TheSlimOne** » Mon Jun 23, 2003 9:56 am

I hate to drag up something very old. I found this searching for info about the ConZult.

There is a relativly cheap way to make an interface that uses the Consult port and hooks to a serial connection now available.. It cost me about $25 to build.. A gentleman in the Z community designed and had the pcb's made all we had to do was give him $3 each for the board and order the parts..

He is also making a 'FREE' Program for us.. He is also working it into the 240SX community.

One of the things he said is they will have limit uses on all Nissan products with the same consult data port.. The more advanced stuff will take some new programming..

the site is http://www.zcontrol.net The guys name is xtensive (Mike)

I hope this helps u all out a little bit

Slim

Post by **TheSlimOne** » Mon Jun 23, 2003 9:56 am

Oh to answer an old question on here. Just hooking into the port will yield nothing from the ECU. You have to ask the right question for it to respond.. It talks in HEX and will answer with a '10' when the sequence ff ff fe is sent to it..

If you can get that far , your interface is well on its way.. All of this is explained in pretty good detail on Zcontrol.net

Post by **Eswift** » Mon Jun 23, 2003 9:56 am

are the PCB's still available?

Post by **TheSlimOne** » Mon Jun 23, 2003 9:56 am

He ordered another run of them.. So You can email him about it to get one if your wanting them.. And this one does work with the new version of CoZult.. Only thing is it is for the Z.. I am sure they can port it over pretty easy...

Slim

Post by **Eswift** » Mon Jun 23, 2003 9:56 am

if its for the Z, it will work for the J30, seeing as the ECUs are swappable!...too bad for the Q though.

Post by **wamQ45** » Mon Jun 23, 2003 9:56 am

Post by **wamQ45** » Mon Jun 23, 2003 9:56 am

More to Hmmm about

Post by **DAEDALUS** » Mon Jun 23, 2003 9:56 am

Damn, nice digging. I hope and hope and hope someday I will have a Palm or PC based utility.

http://www.300degree.com/electronics/nprobe/

Post by **erich** » Mon Jun 23, 2003 9:56 am

I'm working an a Palm based unit, and I already have PC based one working. Stay tuned.

Post by **maxnix** » Mon Jun 23, 2003 9:56 am

While the palm version will be a hit with the monochrome PDA crowd, I would kill to get my hands on a PC version that can display G50 OBD I data.

Post by **erich** » Mon Jun 23, 2003 9:56 am

Having no idea what a G50 is, I probably can't help you out much :-)Nissan had some standard registers and a bunch of specialized registerd for different ECUs, Things like RPM, injector pulse timing and MAF voltage is standard. If that's all you want then it probably isn't a big deal.

Post by **szh** » Mon Jun 23, 2003 9:56 am

Brian (maxnix) likes to use other designators that are based on the engine type and model years!

G50 is the first-gen Q45 (from 1990 to 1996), although the 1996 Q45 used OBD-II rather than OBD-I (I believe).

Z

Post by **wamQ45** » Mon Jun 23, 2003 9:56 am

erich wrote:I'm working an a Palm based unit, and I already have PC based one working. Stay tuned.

Your PC version.... Is it for a Q45?

Post by **erich** » Mon Jun 23, 2003 9:56 am

I don't know, I don't have a Q45 handy to test t on.

Post by **98fiveSpeed** » Mon Jun 23, 2003 9:56 am

Sup guys,

I have a 98 Nissan Maxima with a Unisia JECS ECU. There are NO ECU upgrades for this model because noone is willing to do it. So a couple of other members and I have set out on a project to "hack" into this ecu via OBD port or other means.

Any information you guys can provide would be greatly apprecaited. Im not trying to spam this thread, just generate some more information and also to let you guys know that there are other people out there trying to do something similar to you guys.

http://forums.maxima.org/showt...pp=30

Thanks and keep up the good work!

Jasmeet

Post by **cnickk** » Tue Oct 12, 2004 8:15 pm

little late to this one, but you guys ever get a consult homemade???

DIY Consult program thru PC Connection

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